Store Renovation and Remodeling in Yokohama by Kakeru Koumuten Co., Ltd. | Cost Estimates, Project Examples, and Subsidies

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YOKOHAMA / STORE RENOVATION

If you are looking for
store renovation and remodeling contractors in Yokohama, come to Kakeru Koumuten

Kakeru Koumuten is a remodeling company based in Aoba-ku, Yokohama, handling exterior and interior construction for stores across 18 wards in Yokohama from our 5 locations in the city.
Here, we have summarized “Reasons why Kakeru Koumuten is chosen for store renovations in Yokohama”, along with information on cost averages, subsidies for the fiscal year 2026, unique notifications and regulations in Yokohama, and how to choose a contractor that corporate clients may be concerned about.

• All exterior work is done in-house
• 5 locations within Yokohama
• Servicing all 18 wards of Yokohama
• Comparative estimates are welcome
• Corporate and tenant services available

Renovations and remodels can vary greatly in terms of cost and plan details depending on the contractor.
Be sure to request multiple estimates for comparison!

Table of Contents

1. Reasons why Kakeru Koumuten is chosen for store renovations in Yokohama
2. Points to consider by store location and area in Yokohama
3. Necessary notifications and regulations for store renovations in Yokohama (landscape, signage, fire safety, change of use)
4. For corporate clients: How to proceed with store renovations without stopping business
5. Subsidies and grants available for store renovations in Yokohama【Fiscal Year 2026】
6. Cost averages for store renovations and Kakeru Koumuten’s pricing
7. Customer testimonials
8. Examples of store renovation projects
9. How to choose a store renovation contractor in Yokohama
10. Frequently asked questions about store renovations (Q&A)
11. Leave your store renovations in Yokohama to Kakeru Koumuten
12. Characteristics and service areas of Yokohama (18 wards)

REASONReasons Why Kakeru Koumuten Co., Ltd. is Chosen for Store Renovation Projects in Yokohama

Regarding the reasons why Kakeru Koumuten is chosen for store renovation projects,
“Our unique approach that cannot be imitated by other companies in store renovations”
is a key factor, especially for exterior renovations, which are carried out with “complete in-house construction”, receiving high praise from many customers.

We have absolute confidence in “cost,” “quality,” and “plans” for store renovations in Yokohama, so we would appreciate it if you could compare our estimates with those of other companies.

The most important thing when considering a store renovation is “multiple estimates!”
Let’s request at least 3 estimates from store renovation contractors that cover the Yokohama area!

REASON 01

Specialized Equipment for Store Renovations

Kakeru Koumuten has prepared the following warehouses and material storage areas to provide high quality at low cost for store renovations.
We have established 5 bases within Yokohama for material storage and showrooms.

In-House Scaffolding Materials

We own the scaffolding materials necessary for temporary scaffolding required for exterior and ceiling work in stores, allowing us to set up scaffolding in-house.
By not outsourcing scaffolding work and using our own scaffolding team, we can cut costs for scaffolding work.
We have scaffolding materials equivalent to approximately 50 detached houses!
Even for stores located on steep slopes or in narrow, densely populated areas in Yokohama, our in-house scaffolding team can design scaffolding to fit the site, allowing us to handle projects that outsourced contractors may refuse.

Material Storage in Our Large In-House Warehouse

We store exterior materials and paints.
By ordering a large quantity of materials at once, you can purchase materials at a lower cost!
Additionally, we always have stock available, so we can provide swift responses even in emergencies!

We have all the necessary equipment for store renovations, including compressors for interior painting and washing machines for exterior work.

In-house Waste Separation

Store renovations generate various types of waste, including paint, wood, and metal.
While most contractors dispose of everything together, we can significantly cut waste costs by separating and recycling materials.
We have also obtained the “Industrial Waste Collection and Transportation Permit.”

Showroom

In the showroom, not only can you have meetings, but you can also check the actual colors and materials of exterior materials.
You can also perform color simulations for exteriors and check thermal insulation properties using testing equipment for heat-reflective paints!
The Aoba Showroom is conveniently located just a 3-minute walk from Eda Station on the Tokyu Den-en-toshi Line, making it easily accessible for customers in northern and central Yokohama.

The Machida Store is located in Honmachida, Machida City, and we carry out store renovations in-house!

REASON 02

Complete In-house Construction

One of Kakeru Koumuten Co., Ltd.’s major strengths is its complete in-house construction. By maintaining a consistent system from inquiry to project completion, we can keep costs down while ensuring high-quality workmanship.
Additionally, one representative will handle everything from the estimate to project completion.
Since the same person will manage sales and construction oversight, smooth communication is possible.
For corporate clients, there are often multiple points of contact such as headquarters representatives, store managers, tenant owners, and management companies for commercial facilities, but on our side, there is only one point of contact throughout the process, preventing any miscommunication.

We are confident in our construction plans and costs, so we welcome competitive estimates!

REASON 03

Acquisition of Various Permits and Skilled Workers

We have obtained permits for the construction industry and for the collection and transportation of industrial waste!
We also have nationally certified sheet metal and painting skilled workers, and we are confident in our construction techniques.
Please consult us about renovation work for large stores as well.

REASON 04

Warranty and Aftercare

Renovations and remodeling come with a warranty!
Aftercare is available every year, and we send out annual notification DM.
If you have questions about the warranty, please click on the image above!

REASON 05

Flexible and Prompt Response

We are equipped to handle various exterior troubles and situations.

If you are unable to access the roof at high places, we can respond using a drone!
During leak investigations, we can also conduct surveys using a thermal imaging camera.
For businesses that are currently open, we often receive requests for partial repairs such as “I just want to stop the leak first” or “I want to fix the signboard first,” and we accept small-scale repairs. Since our headquarters and base are close within Yokohama, we can respond quickly in emergencies.

REASON 06

Talent Development

We create various models to enhance skills and conduct practical training.
In store renovation projects, various shapes and processes are required for exterior wall work such as metal siding. We regularly conduct skill enhancement training so that each staff member can respond to various sites.

Click here for Kakeru Koumuten Co., Ltd. company overview

REASON 07

Store Renovation Simulation and Perspective Creation

We will do our best to assist you with difficult store simulations!
We can create simulations based on your desired design and image as many times as needed!

Exterior Renovation Simulation

We can simulate the signboard and exterior from actual store photos!

Color Simulation

When conducting painting work, color simulations can be made from actual photos!
Simulations can also be done on customers’ smartphones or computers.
Of course, we can also arrange color samples for actual color confirmation!
In areas such as Kannai, Minato Mirai, and Yamate where landscape notifications are required, simulation images can be used directly as submission materials or discussion materials for urban development agreements.

About Color Simulation for Exterior Wall PaintingAbout Paint Samples for Exterior Wall Painting

Signboard Installation and Decoration Simulation Available!

We can also accommodate simulations for store signboards and louvers!
We will confirm the image with the customer and work towards the ideal store.

Interior Simulation is of course possible too!

Realistic simulations can be created from blueprints and actual photos!
You can also use perspective images directly as materials for internal approval to headquarters or board meetings.

Store Renovation in Yokohama City, start with a free estimate

On-site surveys, estimates, and simulations are free. Feel free to contact us as one of the companies for comparison estimates.

Request a Free Comparison EstimateConsult via LINE

YOKOHAMA AREAPoints to Consider by Store Location and Area in Yokohama City

Each of the 18 wards in Yokohama City has different commercial characteristics, and “required appearance,” “ease of construction,” “necessary notifications,” and “building wear and tear” can vary significantly by area. We have summarized the points our company pays attention to in store renovations within Yokohama City by area.

18 Wards

Covering all areas of Yokohama City
Responding from 5 bases within the city

Approximately 25,000

Number of wholesale and retail businesses in the city
(2021 Economic Census)

Approximately 12,600

Number of accommodation and food service businesses in the city
(2021 Economic Census)

Nishi Ward & Kanagawa Ward

Around Yokohama Station & Minato Mirai 21

The west exit of Yokohama Station is moving forward with the “West Exit Major Renovation Plan” (target completion in the 2040s), and the closure of the Sotetsu Movie Building and West Exit Ichibangai at the end of September 2026 marks the beginning of full-scale redevelopment. There has been an increase in consultations regarding relocation, temporary setups, and short-term renovations at surrounding stores. The Minato Mirai 21 Central District is subject to landscape notification, and any changes to the exterior require notification at least 31 days before construction begins.

Naka-ku

Kannai, Bashamichi, Isezaki-cho, Motomachi, Chinatown, Yamate

In 2026, the opening of the former city hall block “BASEGATE Yokohama Kannai” and the OMO Hotel will change the flow of people, increasing pressure for renovations on existing stores. Kannai and Yamate are designated as landscape promotion areas, and in Motomachi and Chinatown, prior consultation and notification are required for changes to exteriors and signage due to urban development agreements. Honmoku and Negishi are also areas affected by coastal salt damage.

Kohoku-ku, Tsuzuki-ku

Shin-Yokohama, Hiyoshi, Tsunashima, Center Kita, Center Minami

Kohoku-ku, which has the second highest number of businesses in the city, focuses on offices and dining in Shin-Yokohama and commercial areas along the Tokyu Toyoko Line. Kohoku New Town features competition between large commercial facilities and street-level stores and medical malls, where an attractive exterior directly impacts sales. Within Kohoku NT, there are districts with restrictions on appearance and color due to district planning.

Aoba-ku, Midori-ku

Tama-Plaza, Aobadai, Azamino, Nakayama, Kamoi

This is the headquarters of Kakeru Koumuten Co., Ltd. Aoba-ku is an area where the number of businesses is increasing, with many lifestyle-oriented stores such as clinics, beauty, education, and dining along the Den-en-toshi Line, favoring high-quality and calm exteriors. Being the closest to our headquarters allows for the fastest on-site surveys and emergency responses.

Konan-ku, Totsuka-ku, Asahi-ku, Hodogaya-ku, and others

Kamiooka, Totsuka, Futamatagawa, along National Route 16 / Circular Route 2 / Hodogaya Bypass

In addition to the commercial areas in front of Kamiooka, Totsuka, and Futamatagawa stations, there are many roadside stores (dining, retail, car dealers, clinics) along the main roads. Large signs and the color of exterior walls that are recognizable while driving are key to attracting customers, and areas along busy roads experience faster discoloration of walls due to exhaust fumes.

Tsurumi-ku, Isogo-ku, Kanazawa-ku, Naka-ku Honmoku

Keihin Industrial Zone, Kanazawa Seaside, coastal area of Honmoku

Due to salt damage from sea breezes, rust on metal components such as signs, shutters, railings, and water drainage progresses faster than inland areas. In the coastal area of Kanazawa-ku, about 400 companies and approximately 750 buildings were affected by Typhoon No. 15 in 2019, making it crucial to plan store signs and exteriors with wind and salt resistance specifications.

Building conditions unique to Yokohama: Response to slopes, valleys, dense areas, and salt damage (click to expand)

Slopes and valley terrain. The Yokohama area features a landscape of plateaus and valleys, with roads and railways in the valleys and residential and commercial buildings on the hills. For stores on sloped or uneven sites, setting up scaffolding and transporting materials can be challenging, and there are cases where subcontracted scaffolding companies refuse the job. However, Kakeru Koumuten Co., Ltd. assembles scaffolding tailored to the site using our own scaffolding team and materials.

Narrow stores in dense areas. Long-established commercial areas such as Kannai, Isezaki-cho, Noge, Tsurumi, and Koganeji often have stores with narrow fronts and little space between adjacent buildings, making it essential to consider protection for neighboring properties, noise control, and adjustments to delivery times as part of the process.

Salt damage in coastal areas. In Kanazawa-ku, Isogo-ku, Tsurumi-ku, Honmoku in Naka-ku, and Kanagawa-ku along the coast, iron sign frames, shutters, coping, and rain gutter fittings rust faster than inland. During renovations, we recommend switching to highly corrosion-resistant materials such as stainless steel, aluminum, or Galvalume steel sheets, and applying anti-rust coatings using fluorine or inorganic paints.

Typhoons and strong winds. During Typhoon No. 15 in 2019, many signs were blown away and exterior walls were damaged even within Yokohama City. Reinforcing the sign’s base and reviewing anchors is most economical when done together during renovations.

Source: Yokohama City Statistics (2021 Economic Census – Activity Survey), Yokohama City Urban Development Bureau, Town News (September 2019), and others. Confirmed September 2026.

REGULATIONNecessary notifications and regulations for store renovations in Yokohama City (landscape, signage, fire safety, change of use)

Store renovations are not just about “finishing the construction”; they involve Yokohama City’s landscape rules, sign permits, and fire and building notifications. We have compiled a list of the main procedures that corporate clients should be aware of for compliance (as of September 2026).

Item	Necessary Conditions	Points & Submission Destination
Landscape Notification (Yokohama City Landscape Ordinance)	In the Kannai area, Minato Mirai 21 Central District, Minato Mirai 21 Shinko District, and Yamate area, if the total visible area of color changes or pattern alterations is 10㎡ or more.	Notification must be submitted 31 days before construction (standard processing for MM21 is 50 days). Urban Development Bureau, Landscape Coordination Division. No notification required outside of the four districts.
Outdoor Advertising Permit (Yokohama City Outdoor Advertising Ordinance)	Even for your own store sign, if the total display area of one site exceeds 10㎡. In landscape planning areas, permission may be required even for areas below 10㎡.	Urban Development Bureau, Landscape Coordination Division. For heights over 4m, confirmation under the Building Standards Act is also necessary. Strict restrictions apply in prohibited areas and specially regulated areas (such as Minato Mirai, Kannai, Yamate).
Urban Development Agreement	Areas such as Motomachi Street, Motomachi Nakadori, parts of Yokohama Chinatown, and Kohoku NT.	Consultation with the association or review committee is mandatory before exterior changes or sign postings. Chinatown also has industry restrictions.
Fire Department Notification (Yokohama City Fire Prevention Ordinance)	When conducting interior renovations / when starting or changing the use of a store / when installing fire equipment such as kitchen appliances.	Fire Protection Object Construction Plan Notification: 7 days before construction, Fire Protection Object Use Start Notification: 7 days prior. Jurisdictional fire station (electronic application available).
Change of Use Confirmation Application (Building Standards Act)	If changing from an office or warehouse to a restaurant or retail store, and that portion exceeds 200㎡.	Application by a licensed architect is required. Even if under 200㎡, compliance with interior restrictions (non-combustible materials) and emergency lighting is the responsibility of the business operator.
Barrier-Free (Prefectural Ordinance & City Ordinance)	Kanagawa Prefecture’s Barrier-Free Urban Development Ordinance: Restaurants and retail stores with a use area of 200㎡ or more are designated facilities.	Pre-consultation based on Yokohama City’s Welfare Urban Development Ordinance (30 days before confirmation application for areas under 1,000㎡). Urban Development Bureau, City Planning Division.
Passive Smoking Prevention (Kanagawa Prefectural Ordinance & Health Promotion Act)	Restaurants are generally non-smoking indoors. To allow smoking, the installation of a designated smoking room, etc., is necessary.	Installation of a smoking room is eligible for passive smoking prevention measures subsidies (see below). Existing small businesses have special provisions that require notification.
Food Business Permit Change Notification	When changing the layout of the kitchen or equipment.	Prompt notification to the Health and Welfare Center’s Living Sanitation Division in each ward (online available). Major renovations may be treated as a new permit.
Construction Noise & Hours (Yokohama City Ordinance on the Preservation of Living Environment)	Specific construction work (such as demolition and cutting that produces loud noise).	In residential areas, 7 AM to 7 PM, within 10 hours per day, continuous for no more than 6 days, no work on Sundays. For nighttime interior work, select low-noise operations.

* Conditions and submission destinations may change. Please confirm with the relevant authorities for individual cases. Source: Yokohama City Urban Development Bureau, Building Bureau, Fire Bureau, Kanagawa Prefecture official websites (confirmed September 2026).

Kakeru Koumuten’s Support Scope

• During the consultation, we will confirm whether the location of the store falls under a landscape promotion area, special regulation area for advertisements, or urban development agreement area, and propose a simulation with a design that complies with the regulations.
• We will create the necessary drawings, finishing tables, and completion images for signboard permit applications and landscape notifications, and support the application process.
• We will handle necessary notifications as a contractor, such as construction plan notifications to the fire department.
• For cases requiring the involvement of an architect, such as change of use confirmation applications or large-scale barrier-free discussions, we will incorporate them into the overall schedule early on and provide guidance.

About construction for commercial facilities and tenant stores in station buildings (Construction A, B, C) (click to open)

Stores within commercial facilities such as Lalaport, Lumine, Sogo, and station buildings are generally categorized into A construction (main building and common areas: costs covered by the facility and designated contractors) / B construction (construction related to building-side facilities at the tenant’s request: tenant’s burden, facility designated contractors) / C construction (interior, fixtures, signage, etc.: tenant’s burden, tenant selects contractors).

For C construction, tenants can choose contractors after obtaining approval from the facility, but work must comply with the facility’s regulations regarding nighttime and early morning work outside of business hours, delivery routes, protection measures, noise, and odors, as well as construction applications and fire notifications to the facility. Kakeru Koumuten will create a schedule and construction plan in accordance with each facility’s “tenant construction standards” and assist with coordination with the facility.

FOR BUSINESS For Corporate Clients: How to Proceed with Store Renovations Without Stopping Operations

The main concerns for corporate clients during store renovations are “number of days closed” and “speed of internal approvals.” At Kakeru Koumuten, we proceed with construction while minimizing the impact on operations through the following steps.

1. Inquiry and Hearing (Free)
   We will ask about the purpose of the renovation (deterioration, image refresh, change of business type, restoration to original condition), budget, desired timing, whether it is a tenant or company property, and if it is within a commercial facility.
2. On-site Survey (Free; available outside business hours and on holidays)
   We will check the condition of the exterior, substrate, delivery routes, the situation of neighboring stores, and whether there are any applicable landscape or signboard regulations. If necessary, we will also investigate the roof and leaks using drones and thermography.
3. Simulation and Estimate (Free)
   We will provide exterior perspective drawings, color simulations, and itemized estimates. We can also create multiple plans labeled “Matsu, Take, Ume” for internal approval purposes.
4. Owner Approval and Various Applications
   For tenants, we will proceed with obtaining construction approval from the owner and facility, signboard permit applications, landscape notifications, and subsidy applications (which must be done before construction starts).
5. Schedule Adjustment and Contract
   We will create a schedule that aligns with regular holidays, nighttime, and off-peak periods. We can accommodate split construction such as “exterior work while operating” or “interior work only after closing.”
6. Construction (Fully in-house construction)
   Our in-house scaffolding team will set up scaffolding in a short period, and the person in charge will consistently manage the site. We will thoroughly ensure compliance with fire notifications and take care of protection measures and noise considerations for customers and neighbors.
7. Handing Over, Issuing Warranty, and Aftercare
   We will provide a report with completion photos and send annual reminders for inspections via DM.

Tips for Construction While Operating and Reducing Closure Period (click to open)

Exterior construction can mostly proceed while operating. Only the days for setting up and removing scaffolding and working around entrances and exits will affect operations, so we will schedule those 2-3 days to align with regular holidays. For restaurants concerned about the smell of high-pressure washing or painting, adjustments can be made, such as scheduling the washing day the day before the regular holiday.

Interior work can shorten downtime by “dividing the space” and “concentrating work at night.” Replacing wallpaper and flooring can be done during nighttime work after closing and before opening, taking about 1 to 3 days. If the work involves constructing counters or partitions, we may need a few days of downtime. Due to noise regulations in Yokohama, noisy tasks such as chipping and cutting must be done during the day, so we schedule quieter tasks for nighttime.

Additionally, performing exterior and interior work simultaneously allows us to consolidate scaffolding, protection, and waste disposal, which can reduce overall costs and downtime compared to ordering them separately. If the timing for store renovations is set, conducting a deterioration diagnosis of the roof and exterior walls at the same time can prevent the double cost of reassembling scaffolding later.

Things to Confirm for Tenant Store Renovations (Restoration to Original Condition & Owner Approval) (Click to Open)

If you are operating in a tenant space, you need to check the “provisions regarding alterations and remodeling” and “scope of restoration to original condition” in the lease agreement before construction, and obtain written approval from the owner or management company. Since work on shared parts of the building, such as exterior walls, signs, and roofs, may be the owner’s responsibility, organizing cost-sharing is important.

Kakeru Koumuten Co., Ltd. will prepare materials summarizing the construction details, schedule, and finishing images for the owner’s explanation, facilitating a smooth approval process. We can also propose construction methods that make it easier to restore to original condition upon future departure (such as roof overlay methods that leave the existing structure intact or easily removable constructions).

If you are carrying out work related to kitchens, ducts, or fire compartments in a restaurant, you will need to notify the fire department. If there is a change in use, a confirmation application by an architect may also be required, so please consult us early.

For Corporations with Multiple Stores or Chain Operations: How to Plan Renovations (Click to Open)

For corporations operating multiple stores in Yokohama, we first conduct a deterioration diagnosis of the exterior, roof, and signs for all stores and propose a medium-term renovation plan divided into “stores to fix immediately,” “stores to renovate next year,” and “stores planned for 3 to 5 years later.”

The diagnosis results are compiled into a report with photos, listing estimated costs and priorities for each store, which can be used directly for budget planning and board meeting materials. Since the same representative oversees all stores, it is easier to unify specifications, colors, and sign designs, allowing for renovations that align with the brand image.

Subsidies have annual limits, so you can plan to allocate stores according to the systems, such as “this year using Yokohama City’s store renovation subsidy for one store, and next year using the sustainability subsidy for another store.”

SUBSIDY 2026Possible Subsidies, Grants, and Tax Incentives for Store Renovations in Yokohama City【Fiscal Year 2026】

When planning store renovations as “not just repairs” but as “business improvements,” “energy saving,” or “new business,” there is a possibility to utilize subsidies and tax incentives from the national government and Yokohama City. Here is a summary of the main programs as of September 2026. Contracts or construction started before the grant decision will be excluded, so please consult us before the work begins.

Yokohama City – Accepting Applications: Until November 30, 2026, 5 PM / Early closure possible upon reaching budgetYokohama City Small Business Store Renovation Subsidy

Subsidy rate 1/2; Maximum 200,000 yen (300,000 yen with shop association recommendation)

This program is aimed at small businesses operating in the same location in Yokohama for over a year (commercial and service industries with 5 or fewer employees). It covers “store renovations for business improvement” such as barrier-free modifications, counter improvements, installation of takeout windows, and digging kotatsu, while simple aging updates are not eligible. A declaration of efforts towards decarbonization is required.

Contractors must be construction companies based in Yokohama, and Kakeru Koumuten Co., Ltd., headquartered in Aoba-ku, Yokohama, meets this requirement. Applications for the fiscal year 2026 are open until November 30, 2026, at 5 PM. If the budget is reached, the application period may end early, so businesses considering renovations are advised to prepare early to ensure they can contract and start work after the grant decision (one application per business; those who have previously received assistance for this project are not eligible).

Source: Yokohama City Small Business Store Renovation Subsidy Program (The status of this subsidy was confirmed on September 7, 2026. Please check official information at the time of application.)

Application Period: 11/5〜12/15Small Business Sustainability Subsidy〈General Type・Regular Frame〉Round 20

Subsidy Rate: 2/3; Maximum: 500,000 yen (with invoice special exception +500,000 yen / wage increase special exception +1,500,000 yen for a total maximum of 2,500,000 yen)

This is the most commonly used subsidy for store renovations (exterior and interior work) that qualify as “outsourcing costs” aimed at developing sales channels. The requirement for commercial and service industries is to have 5 or fewer employees at all times, and corporations can also apply. The 20th round is expected to accept electronic applications from November 5 to December 15, 2026 (gBizID required; issuance of Chamber of Commerce Form 4 is until early December), with selections anticipated around March 2027.

Businesses in Yokohama will work through the Yokohama Chamber of Commerce. The key point is whether you can write in your plan how renovations will connect to developing sales channels, such as “acquiring new customers with a new sign” or “expanding sales channels by setting up a takeout window.”

Application Period: 9/30〜10/30New Business Expansion・Manufacturing・Commercial・Service Subsidy〈New Business Expansion Frame〉

Subsidy Rate: 1/2; Maximum: 25 million yen to 70 million yen (depending on the number of employees)

This is a system that integrates the “New Business Expansion Subsidy” and the “Manufacturing Subsidy” for the fiscal year 2026, where the cost of building (including interior renovations) is eligible. Simple renovations of existing stores are not eligible; the premise is a shift to a new business model or entry into a new market. If the target for added value or wage increases is not met, there will be a repayment obligation, so plans should be made carefully. The first application round is from September 30 to October 30, 2026.

Currently Accepting Applications (until 1/31/2027; may end early if budget is reached)Subsidy for Measures Against Passive Smoking (Ministry of Health, Labour and Welfare)

Subsidy Rate: Restaurants 2/3; Others 1/2; Maximum: 1 million yen

This subsidy covers the installation of smoking rooms and designated smoking areas, as well as renovations of ventilation systems. Restaurants that establish smoking rooms under the Kanagawa Prefecture Passive Smoking Prevention Ordinance can plan renovations efficiently, but application and grant decision must be completed before starting construction. Applications should be submitted to the Kanagawa Labor Bureau.

Application Period: 9/1〜11/30Business Improvement Subsidy (Ministry of Health, Labour and Welfare)

Subsidy rate 3/4 to 4/5; upper limit 300,000 to 6,000,000 yen (increase amount × number of people)

Small and medium-sized enterprises that raise the minimum wage within the workplace by 50 yen or more and invest in equipment to improve productivity are eligible. Main targets include POS registers and kitchen equipment, and while interior renovations are generally not eligible, renovations directly related to productivity improvements, such as improving flow lines, may be accepted (prior confirmation required).

Subsidies for energy-saving equipment and solar power (Yokohama City / Kanagawa Prefecture / National) and current application status (click to open)

• Yokohama City Carbon Neutral Equipment Investment Subsidy Program (Energy-saving support, LED support, solar power introduction support): Targets commercial air conditioning, hot water supply, LED lighting, and self-consumption solar power systems of 10 kW or more. Energy-saving support has a subsidy rate of 1/2 with an upper limit of 1,000,000 to 3,000,000 yen, LED support has an upper limit of 500,000 yen, and solar power is 80,000 to 100,000 yen per kW. Applications for FY2026 will be accepted from May to June, and as it is highly likely to end soon, it is recommended to plan updates for air conditioning and lighting alongside store renovations for the next fiscal year.
• Kanagawa Prefecture Subsidy for Energy-Saving Equipment Introduction for Small and Medium-Sized Enterprises: Subsidy rate of 1/3 with an upper limit of 5,000,000 yen (up to 6,000,000 yen under certain conditions). As of August 6, 2026, applications have ended due to budget reach.
• National Energy-Saving Investment Promotion and Demand Structure Transformation Support Program (Energy-saving and non-fossil conversion subsidies): Targets equipment updates for LED, commercial air conditioning, hot water supply, etc. As it is a multiple-round public offering system, please check the latest application schedule.
• Energy-Saving Diagnosis and Decarbonization Management Consultation: Free consultations are available at Yokohama City’s “Decarbonization Management Specialized Consultation Desk” (IDEC Yokohama). Receiving a diagnosis increases the subsidy limit from Yokohama City.

*Subsidies related to energy-saving in Yokohama City and Prefecture tend to end early due to budget reach from May to August each year. Corporations considering store renovations and energy-saving equipment updates simultaneously are advised to plan their processes based on early fiscal year applications.

Tax System (Extended in FY2026)Small and Medium-Sized Enterprise Management Strengthening Tax System and Special Provisions for Small-Amount Depreciable Assets

Immediate depreciation or tax credit of 10% (7% for capital over 30 million yen)

The Small and Medium-Sized Enterprise Management Strengthening Tax System has been extended until March 31, 2028, and targets building attached equipment of 600,000 yen or more (air conditioning, lighting, plumbing, etc.) and equipment over 400,000 yen. Certification of a management capability improvement plan is required, but this system offers significant tax benefits for corporations updating equipment during store renovations.

The Special Provisions for Small-Amount Depreciable Assets have been extended and expanded until March 31, 2029, allowing immediate depreciation for assets with acquisition costs under 400,000 yen (previously under 300,000 yen) up to a total of 3,000,000 yen per year. This system is convenient for smaller equipment such as signs, fixtures, and lighting. If you receive certification for Yokohama City’s “Advanced Equipment Introduction Plan,” you can also combine it with fixed asset tax reductions.

*Please confirm the applicability of the tax system with your tax advisor.

Three Golden Rules for Utilizing Subsidies

• Do not contract or start construction before the grant decision (obtaining estimates is allowed). Consultation before construction is essential.
• Organize the “purpose of renovation” to align with the intent of the subsidy (business improvement, market development, energy saving, new business). Kakeru Koumuten will support the creation of estimates, drawings, and specifications necessary for the application.
• Act at the beginning of the fiscal year. Many of Yokohama City and Prefecture’s systems end early due to first-come-first-served basis by summer, and national systems also have deadlines for each public offering round.

Information as of September 4, 2026. The content of the system and application status may change, so please be sure to check the latest information from each implementing agency. Source: Yokohama City Economic Bureau / Small and Medium Enterprise Agency / Ministry of Health, Labour and Welfare / Kanagawa Prefectural Bureau of Industry and Labor / Organization for Small & Medium Enterprises and Regional Innovation Official Websites

PRICECost Estimates for Store Renovations and Kakeru Koumuten’s Pricing

The cost of store renovations varies significantly based on “exterior or interior,” “business type,” and “skeleton or existing layout.” First, please take a look at the overall estimates.

Cost Estimates for Store Renovations (by Business Type and Per Tsubo)

*If the table is cut off, please scroll left and right to view it.

Business Type / Construction Content	Per Tsubo / Total Cost Estimate	Points
Retail / Service Store (Existing Layout / Interior Refresh)	150,000 – 350,000 yen/tsubo	Focus on refreshing wallpaper, flooring, lighting, and fixtures. Costs decrease as existing equipment is utilized.
Restaurant (Existing Layout)	200,000 – 400,000 yen/tsubo	Costs vary significantly depending on the reuse of kitchen, duct, and plumbing.
Restaurant (Skeleton)	400,000 – 700,000 yen/tsubo	All facilities, fire prevention, and plumbing need to be established from scratch. Fire department notification is required.
Clinic / Beauty / Salon	300,000 – 700,000 yen/tsubo	Costs are influenced by the number of private rooms, plumbing, and electrical capacity enhancements.
Office	100,000 – 300,000 yen/tsubo	Focus on partitions, OA flooring, and LED lighting conversion.
Exterior Renovation (Exterior Wall Painting + Signage)	1,000,000 – 3,000,000 yen/building	Estimate for a two-story street-level store. Scaffolding costs are included.
Exterior Renovation (Metal Siding Replacement + Roof + Signage)	4,000,000 – 8,000,000 yen/building	Costs vary based on the presence of substrate repairs, area, and decorative elements like louvers.

*These are general market estimates. Costs may vary based on the size of the building, condition of the substrate, and the possibility of reusing equipment, so please confirm the exact costs with a quote after a site survey. In the coastal area of Yokohama, there may be slight cost differences for anti-corrosion specifications and designated colors in scenic districts.

Kakeru Koumuten’s Exterior Renovation Pricing

For exterior work such as exterior wall painting and exterior wall covering (metal siding), we have published unit prices by plan on our construction menu page. Please use this for comparing estimates.

Click here for the Exterior Wall Painting Price List by PlanClick here for the Pricing of Exterior Wall Covering (Metal Siding)

*If the table is cut off, please scroll left and right to view it.

Temporary scaffolding (reference unit price for general residential use) 1㎡ of scaffolding 3,000円〜 500 yen〜 Protective Mesh Sheet Scaffolding 1㎡ 50 yen〜 Roof Scaffolding Roof 1㎡ 600 yen〜 Partial Scaffolding 1 set 60,000 yen〜

* The painting prices are based on the unit costs of the specified painting processes for each plan and do not represent the total cost for one building. The total amount, including scaffolding, cleaning, protection, substrate repair, ancillary parts, and sealing, will be estimated according to the scope of work. The cost for exterior wall covering varies based on material, area, and substrate condition, and confirmation is needed for equipment removal and painting of ancillary parts.

* The waterproof top coat is for the protection of the existing waterproof layer and is different from the installation or replacement of a waterproof layer. If there are leaks or damage to the waterproof layer, we will propose repairs and waterproofing methods suitable for the condition.

* The minimum construction fee for each menu of exterior wall and exterior cleaning is 15,000 yen. The pricing for colored coating varies based on the quantity and scope of work and is not a uniform price per 1㎡. Scaffolding is calculated based on the scaffolding area, and roof scaffolding is calculated based on the roof area, with additional costs incurred depending on the shape, height, and delivery conditions of the store.

* The amounts are estimates based on the listed prices for construction menus. The total amount, including tax classifications, miscellaneous expenses, and additional work, should be confirmed in the official estimate.

Reference for pricing: The above exterior wall painting and metal siding construction menus, as well as roof painting / waterproofing work / exterior wall and exterior cleaning / colored coating / temporary scaffolding (confirmed on September 7, 2026)

* Costs for signs, louvers, custom counters, partitions, commercial air conditioning, kitchen equipment, etc., will vary based on size, specifications, and the usability of existing equipment, and will be estimated individually.

Examples of Interior Renovation Costs (Kakeru Koumuten)

Below are some examples of costs for interior renovations!

* If the table is cut off, please scroll left and right to view.

Work Item	Unit	Cost
Mass Production Wallpaper	1m	Approximately 1,000 yen〜
High-Grade Wallpaper	1m	Approximately 1,400 yen〜
Functional Wallpaper	1m	Approximately 1,600 yen〜
Cushion Floor	1㎡	3,500 yen〜
Floor Tile	1㎡	5,000 yen〜
Flooring	1㎡	9,000 yen〜
Tile Carpet	1㎡	3,500 yen〜
Soft Baseboard	1m	800 yen〜
Wood Baseboard	1m	2,300 yen〜
Toilet Replacement (Combination Type)	1 unit	Approximately 140,000 yen〜
Toilet Replacement (One-Piece Type)	1 unit	Approximately 180,000 yen〜
Toilet Replacement (Tankless Type)	1 unit	Approximately 250,000 yen〜
Toilet Replacement (Cabinet Type)	1 unit	Approximately 230,000 yen〜
Vanity Replacement (Single Mirror Type)	1 unit	Approximately 80,000 yen〜
Vanity Replacement (Triple Mirror Type)	1 unit	Approximately 120,000 yen〜
Vanity Replacement (Counter Type)	1 unit	Approximately 210,000 yen〜
Vanity Replacement (Wide Type)	1 unit	Approximately 270,000 yen〜
Vanity Replacement (Custom Style Type)	1 unit	Approximately 300,000 yen〜

※The cost for wallpaper is per 1m, not per 1㎡. Under standard conditions, it includes material costs, removal of existing wallpaper, installation of new wallpaper, and disposal of waste. Additional costs may arise if repairs to the base, replacement of gypsum board, mold treatment, moving furniture, or disassembly and reassembly of air conditioning units are necessary, or in cases of high locations or small-scale work.

※The six items for flooring and baseboards are examples of costs previously published. Removal and disposal will incur additional charges, and costs may vary depending on the condition of the base. The specifications of materials for commercial use and the scope of work will be confirmed through on-site inspection.

* The toilet and vanity replacement includes standard exchange work, which covers the removal of existing equipment, new installation, and disposal of waste materials. Relocation or installation of water supply and drainage pipes, additional outlet installation, substrate repairs, and wallpaper or flooring replacement will be estimated separately. Products, dimensions, and specifications used in stores will be selected according to site conditions.

* The amounts are estimates. Please confirm the total amount, including tax categories, miscellaneous expenses, and additional work, in the official estimate.

Reference for fees: Wallpaper Replacement Construction Menu / Toilet Replacement Construction Menu / Vanity Replacement Construction Menu (Confirmed on September 7, 2026)

Five Ways to Reduce Costs for Store Renovation (Click to Open)

• Combine exterior and interior work, roof and walls: You can complete scaffolding, protection, waste disposal, and miscellaneous expenses all at once. Kakeru Koumuten owns its scaffolding materials, making this effect particularly significant.
• Choose a cover method that utilizes existing structures: For exterior walls, the metal siding cover method is more cost-effective than replacement, and covering the roof without removal can reduce demolition and disposal costs.
• Add contrast to the design: Spending more on the front (facade) and finishing the back and sides with paint can effectively separate the visible and less visible areas.
• Combine subsidies and tax incentives: Considering these systems before construction can significantly change your actual burden.
• Obtain estimates from at least three companies: By comparing items, quantities, material grades, and warranties, you can see the appropriate prices.

VOICECustomer Feedback

カテゴリ ‘voice’ は見つかりません

• customer reviews

  

  Asao-ku, Kawasaki City | We received reviews about the ridge cap and rain gutter replacement work!

• customer reviews

  

  Kohoku-ku, Yokohama | We received reviews about the roof overlay (cover method)!

• customer reviews

  

  Kohoku-ku, Yokohama | We Received Reviews About Exterior Painting!

• customer reviews

  

  Aoba-ku, Yokohama | We received reviews about our exterior fence construction!

• customer reviews

  

  Tsurumi-ku, Yokohama | We received reviews about roof and exterior wall painting, as well as metalwork and rain gutter replacement work!

• customer reviews

  

  Higashiyamato City, Tokyo | We received reviews about exterior painting and roof overlay (cover method)!

WORKSStore Renovation Case Studies

Kakeru Koumuten Co., Ltd.’s Machida branch (Honmachida, Machida City) is a store that has been renovated both externally and internally by our company. As a reference for store renovations in Yokohama City, we would like to introduce a case where the exterior was completely renewed with metal siding and wood grain louvers. We regularly publish our exterior construction achievements for stores and businesses in Yokohama City on our construction results page.

BEFORE

AFTER

Construction Details

Temporary scaffolding installation／Exterior wall painting work (only the back side)／Exterior wall siding work (3 sides)／Roof painting work／Cap flashing work／Interior renovation work／Exterior wall louver installation／Sign installation／Sign lighting installation

Existing substrate / New materials used

Exterior wall painting → SK Kaken / Premium Silicon: N40 (matte)
Exterior wall siding → Aiji Industrial / Gal Stage Shine
Roof painting (standing seam metal roof) → Nippon Paint / Fine Perfect Best
Cap flashing → Made of Galvalume steel
Exterior wall louvers → Aluminum wood grain louvers

Price Range

5 million to 6 million yen

Construction Period

4 weeks

Completion Month

May 2025

About the Construction

The existing exterior wall was made of ceramic siding, which had joint cuts and substrate corrosion, and we wanted to improve its appearance, so we replaced it with metal siding. We installed wood grain louvers as an accent before putting up the sign.
The back side of the store was done with sealing work and exterior wall painting to keep costs down.
As for the roof, it was originally a metal roof that had not deteriorated, but we performed roof painting because we wanted to change its color.

See other exterior renovation construction achievements here!!

HOW TO CHOOSEHow to Choose a Store Renovation Contractor in Yokohama City

There are many store renovation contractors that serve Yokohama City, and you may be unsure which contractor to choose.
Therefore, when requesting a store renovation, let’s check the following 6 points.

• Having extensive experience in store renovations
• Confirming the presence or absence of warranties and aftercare services
• Obtaining estimates from multiple contractors (at least 3 companies)
• Considering separate orders depending on the situation
• Checking if they can accommodate simulations
• Confirming if they can handle small-scale construction or repairs

By confirming the above six points, you will be able to choose a reliable contractor.

Having extensive experience in store renovations

Store renovation contractors often have websites that showcase their construction achievements.

Additionally, if they provide detailed explanations of their construction achievements with photos, it offers reassurance as a reference when you actually request their services.

If you are concerned about whether the contractor you are about to hire will respond adequately, it is advisable to choose a contractor with extensive experience in store renovations.
Different contractors have their specialties, with some excelling in exterior work and others in interior work.
If the work you desire is primarily exterior, hiring a contractor that specializes in exterior work can help reduce costs and facilitate a smoother process!

Our company specializes in exterior renovations, as we handle all work in-house!

It is also effective to refer to reviews on Google and review sites!
If there are many negative reviews or no reviews at all, it may be wise to refrain from hiring them.
Recommended reviews are those on Google!
It is difficult to fabricate reviews, and negative reviews cannot be deleted, making them highly credible!

Confirming the presence or absence of warranties and aftercare services

When choosing a store renovation contractor, let’s confirm the presence or absence of warranties.

If the contractor has a warranty period, they may offer free repairs within that period.

The warranty period varies depending on the contractor and the type of materials used, but it typically ranges from 1 to 10 years.
Emergency repairs or partial repairs often do not come with a warranty.

Additionally, some contractors offer aftercare services separate from warranties, so be sure to check if the contractor you are considering has warranties or aftercare services.

Kakeru Koumuten Co., Ltd. provides warranties for each renovation project.
We also conduct aftercare maintenance and send out annual direct mail, allowing for yearly inspections.

About Kakeru Koumuten’s warranties and aftercare services

Obtaining estimates from multiple contractors (at least 3 companies)

When requesting exterior renovation work, be sure to obtain estimates from multiple contractors!

The way to decide on a store renovation plan involves detailed hearings and investigations regarding “the existing condition,” “materials,” “design,” and “desired durability period,” allowing us to propose the optimal plan.

Even with the same construction content, there may be differences in guarantees, after-sales services, or the total cost.

Additionally, obtaining multiple estimates makes it easier to negotiate prices.

To request your desired remodeling company at a lower price, it is essential to obtain estimates from multiple contractors.

When comparing estimates, be sure to look closely at not only the costs, but also the “items in the estimate,” “confirmation of the materials and types of auxiliary materials and fasteners,” and “confirmation of the process.” Avoid making decisions based solely on cost, as lower-quality auxiliary materials or skipping steps can reduce costs!

Here is how to view estimates for exterior wall painting and sealing work in Yokohama

Consider separate orders depending on the situation

As mentioned earlier, there are companies that specialize in interior work and those that excel in exterior work.
If you are focusing on interior renovations, you can request estimates from companies that specialize in interiors, and if you are focusing on exterior renovations, you can request estimates from companies like ours that specialize in exteriors, which can help reduce costs and ensure smoother construction.

While this may increase your workload, if you are renovating both the interior and exterior, you can significantly reduce costs by ordering from different contractors for each.

Check if simulation support is available

In store renovations, appearance is quite important, and if the result is “different from the image” after construction, it cannot be undone.

Always confirm the image through simulations or perspectives before proceeding with the work!
Samples of wallpaper, flooring, and exterior wall materials can also be arranged, so confirming the actual materials before proceeding with construction will likely lead to a finish closer to your desired appearance!

Since costs can vary greatly depending on the design, we can also propose plans that fit your budget!

Check if they can handle small-scale work or repairs

Stores frequently encounter small issues that directly affect operations, such as “the sign lighting is out,” “the rain gutter has come loose,” or “the entrance door is hard to close.” If you only work with contractors who handle large renovations, you will have to search for another contractor each time these repairs arise, and the company that understands the condition of the building will no longer be available.

Kakeru Koumuten Co., Ltd. handles small-scale work such as partial exterior repairs, leak repairs, and sign replacements, and continues to monitor the condition of the store through annual aftercare maintenance after renovations. For corporations operating multiple stores in Yokohama, we also assist in managing maintenance histories for each store.

FAQFrequently Asked Questions about Store Renovations (Q&A)

How much does store renovation in Yokohama cost?

It depends on the scope of work, but for interior refreshes, the cost is around 150,000 to 400,000 yen per tsubo, for exterior wall painting and sign renovations, it ranges from 1,000,000 to 3,000,000 yen, and for metal siding replacement including roof and sign renovations, it is between 4,000,000 to 8,000,000 yen. Kakeru Koumuten Co., Ltd. owns its own scaffolding materials and conducts all work in-house, allowing us to reduce costs by eliminating intermediary margins for the same specifications. On-site surveys and estimates are free of charge.

Can store renovations be done while operating? How many days of closure are needed?

はい、店舗改装に利用できる補助金があります。横浜市では、商業施設の改装やリニューアルに対して補助金を提供しており、申請条件や金額は年度によって異なります。翔工務店では、補助金の申請手続きや必要書類の準備をサポートし、スムーズな申請をお手伝いします。

For the fiscal year 2026, candidates include the Small Business Sustainability Subsidy (20th round: accepting applications from 11/5 to 12/15, with a limit of 500,000 to 2,500,000 yen), the New Business Expansion Subsidy (accepting applications from 9/30 to 10/30, applicable to building costs), the Subsidy for Measures Against Passive Smoking, and the Business Improvement Subsidy. The Yokohama City Small Business Store Renovation Subsidy (requires construction by a local contractor; Kakeru Koumuten Co., Ltd. meets this requirement) is currently accepting applications until November 30, 2026, at 5 PM (early closure may occur upon reaching the budget). Please note that contracts and construction before the grant decision are not eligible, so please consult us before the work begins.

MESSAGELeave your store renovations in Yokohama to Kakeru Koumuten Co., Ltd.!

Our company handles many exterior construction projects within Yokohama City, not only “metal siding work” and “roof work,” but also partial exterior repairs and leak repairs, all carried out by our own staff.

For those struggling with design or planning, we can assist using our experience and simulations!

Kakeru Koumuten Co., Ltd. promises “high-quality store renovations at low costs,” and we have received great feedback from numerous customers.
We continue to update our annual construction performance records, and we will strive to improve quality so that even more customers are satisfied in the future.

“I want it to last long with a single renovation,” “I want to keep costs down as much as possible,” “I want to improve insulation because the indoors are hot“, we provide optimal solutions for specific requests.
We will never propose unnecessary work that prioritizes profit!
We always stand in the customer’s shoes and propose the best construction plans!

We are confident that we will not be outdone by other companies in terms of cost, quality, and planning for exterior construction!
We welcome competitive estimates with confidence!
Estimates are completely free, and if you find our company lacking compared to others, feel free to decline!

AREACharacteristics and Service Areas of Yokohama City (18 Wards)

Yokohama City has a population of approximately 3.77 million, making it Japan’s largest designated city, consisting of 18 wards. The commercial concentration in the urban coastal area, including Yokohama Station, Minato Mirai, and Kannai, the business district of Shin-Yokohama, the suburban commercial areas along the Den-en-toshi Line, Toyoko Line, and Sotetsu Line, roadside areas along National Route 16 and Route 2, and the coastal area from the Keihin Industrial Zone to Kanazawa Seaside, all have completely different characteristics for stores in each area.

According to the 2021 Economic Census, there are approximately 25,000 wholesale and retail businesses and about 12,600 accommodation and food service establishments in the city, both of which have decreased compared to five years ago. As competition becomes more intense, the importance of planned store renovations is increasing year by year to remain a “chosen store.”

Our company is headquartered in Aoba-ku, Yokohama, and we handle exterior and interior construction for all stores in Yokohama’s 18 wards from our five bases in the city. We can perform all exterior renovations, including exterior wall painting, roof work, and roof overlay (cover method), in-house.
Please feel free to consult us if you have any concerns!

Store Renovation – Service Areas

Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and all of Tokyo.

Consultations via LINE are also very welcome◎

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