目次
- 1 If you are looking for a large-scale repair contractor in Hiratsuka City, come to Kakeru Koumuten
- 2 Reasons why Kakeru Koumuten is chosen for large-scale repairs in Hiratsuka City
- 2.1 1. Equipment specialized for exterior renovations
- 2.2 2. Cost Reduction through In-House Management and Construction
- 2.3 3. Various Permits and Skilled Workers
- 2.4 4. Warranty and Aftercare
- 2.5 5. Flexible and Prompt Response
- 2.6 6. Human Resource Development
- 2.7 7. Consideration for Residents and Neighbors
- 2.8 8. Strict Quality Control
- 2.9 9. Exterior Wall Painting Color Simulation
- 3 Subsidies and Grants That May Be Applicable for Large-Scale Repairs in Hiratsuka City
- 4 Examples of Costs for Major Repairs
- 5 Customer Feedback
- 6 Case Study of Exterior Renovation Work on a Mixed-Use Building
- 7 How to Choose a Large-Scale Renovation Contractor
- 8 If you are looking for a large-scale renovation contractor in Hiratsuka City, please contact Kakeru Koumuten
If you are looking for
a large-scale repair contractor
in Hiratsuka City, come to Kakeru Koumuten
Kakeru Koumuten is a complete in-house contractor capable of handling everything from temporary scaffolding installation to roofing work, waterproofing, and exterior painting.
We have undertaken numerous large-scale repairs and exterior renovations for apartments, condominiums, and commercial facilities in Hiratsuka City.
“Subsidies and costs available for large-scale repairs in Hiratsuka City”
“How to choose a large-scale repair contractor in Hiratsuka City”
“Why Kakeru Koumuten is chosen in Hiratsuka City”
These topics will definitely be helpful for owners and management associations considering repairs or exterior renovations for their apartments and condominiums, so please take a look!
To conclude, the most important thing when considering large-scale repairs is
“multiple estimates”!
Let’s get at least 3 estimates from large-scale repair companies that cover Hiratsuka City!
Reasons why Kakeru Koumuten is chosen for large-scale repairs in Hiratsuka City

One reason why we are entrusted with large-scale repairs in Hiratsuka City is that
“Kakeru Koumuten has a base in Kanagawa Prefecture,” but
“Our unique initiatives in large-scale repair work that cannot be imitated by other companies”
have received high praise from many customers.
“cost,” “quality,” and “plans” for exterior renovations of apartments, condominiums, and commercial facilities in Hiratsuka City,
1. Equipment specialized for exterior renovations
At Kakeru Koumuten Co., Ltd., we have prepared the following warehouses and material storage areas to provide low-cost, high-quality exterior wall painting and waterproofing work for large-scale repairs.
We have established five bases centered around Yokohama City for material storage and showrooms.
In-house Scaffolding Materials
We own the scaffolding materials necessary for temporary scaffolding required for large-scale repairs, allowing us to assemble scaffolding in-house.
By not outsourcing scaffolding work and using our own scaffolding team, we can cut costs on scaffolding construction and provide quick and flexible responses.
We have approximately enough scaffolding materials for 100 single-family homes!
Storage of Materials in Our Large Warehouse
We store paints and base repair materials used for exterior renovations.
By ordering a large quantity of materials at once, we can procure materials at a lower cost!
Additionally, since we always have stock available, we can provide swift responses even in emergencies!
In-house Waste Separation
During large-scale renovations, various waste materials such as leftover paint, metal, and wood are generated.
Most contractors dispose of them all together, but by sorting and recycling waste materials, significant cost reductions on waste disposal can be achieved.
Exterior Renovation Dedicated Showroom


In the showroom, not only can you have meetings, but you can also
check actual exterior material samples and colors.
You can also perform color simulations for exterior wall painting and check heat insulation properties using a heat insulation testing machine!
2. Cost Reduction through In-House Management and Construction

One of Kakeru Koumuten’s major strengths is our in-house management and construction.
From inquiries to project completion, everything is managed by Kakeru Koumuten in a consistent system, allowing us to keep costs down while providing high-quality large-scale repairs.
Additionally, one representative will handle everything from the estimate to project completion.
Since the same person will be in charge, whether it’s sales or construction management, smooth communication is possible.
We can handle everything from temporary scaffolding installation to exterior wall painting, substrate repairs, waterproofing work, and tile repairs with complete in-house construction!
Qualified professionals with specialized knowledge and experience will conduct inspections and actual construction at each stage!
3. Various Permits and Skilled Workers
We have obtained construction industry permits and permits for industrial waste collection and transportation!
We also have nationally certified sheet metal workers and painting specialists on staff, giving us confidence in our construction techniques.
We are capable of handling large-scale roofing projects for factories and other facilities!
We also have qualified asbestos supervisors and asbestos surveyors on staff, allowing us to handle asbestos-containing roofing materials and conduct pre-investigations.
4. Warranty and Aftercare

Most large-scale repair works come with a warranty for almost all types of work, including “painting work,” “substrate repair work,” and “waterproofing work”!
Aftercare maintenance is available every year, and we send out notification DM annually.
5. Flexible and Prompt Response
Our company is equipped to handle various troubles and situations related to apartments and condominiums.
We can also address exterior walls and rooftops that cannot be inspected from high places using drones!
During leak investigations, we can use a thermal imaging camera to help identify the cause of leaks!
We will respond according to your wishes.
We also accept emergency measures for sudden leaks!
We will promptly respond to urgent requests and emergencies!
6. Human Resource Development
Our staff creates various models to improve their skills and conducts practical training.
Since different processing and techniques are required depending on the site, we regularly provide skill enhancement training to ensure that each staff member can respond appropriately.
We also educate on points to pay attention to and areas to check during each phase of large-scale repair work.
7. Consideration for Residents and Neighbors

During large-scale repair work, we not only notify residents and greet neighbors but also set up bulletin boards at entrances to display schedules and announcements!
Additionally, we ensure that the manners of visitors are thoroughly educated to minimize any inconvenience to residents and neighbors.
8. Strict Quality Control

Each phase is inspected by a responsible person, and detailed construction photos are taken.
We use film thickness testing equipment and check sheets during inspections to ensure that no inspections are overlooked.
During exterior painting and waterproofing work, we confirm the quantity of used paint cans to ensure that the specified amount of paint is used, and we order paint directly from our company to prevent construction defects.
Of course, we will also take photos of the used paint and report them accordingly.
9. Exterior Wall Painting Color Simulation
9-1 Self Color Simulation

The simulations created by our company can be done using photos of your actual apartment or building!
You can also perform the simulation on your smartphone or computer.
By simulating and then applying two-tone colors or making image changes, we hope to help you achieve a stylish appearance and increase occupancy rates!
Of course, we can also arrange for paint samples to confirm the actual colors.
9-2 Confirm Actual Colors with Test Painting!
You can order samples of the paint you are considering and perform test painting on your exterior walls.
By conducting a test paint, you can confirm the actual color and sheen!
9-3 Exterior Renovation Simulation
We can also provide exterior simulations for apartments and condominiums as follows!
・Exterior wall color simulation (two-tone colors are also possible)
・Simulation for when metal siding is applied
・Simulation using accent materials such as cornices and louvers
・Simulation for roof painting or roof replacement work is also possible
The risk of failure in image changes can be greatly reduced with exterior renovation simulations!
We hope that renovating the appearance of your apartment or condominium will help increase occupancy rates.
Subsidies and Grants That May Be Applicable for Large-Scale Repairs in Hiratsuka City
In Hiratsuka City, there are potential subsidies available when carrying out renovation work on apartments and condominiums!
For more details, please contact our company or your local municipality! (As of July 2026)
Condominium Longevity Promotion Tax System (Special Measures for Property Tax)
There is a system that reduces property tax when large-scale repairs are made to condominiums.
◎ For more details, click here↓
Large-scale repairs to condominiums will reduce property tax! (PDF)
Is your condominium being regularly repaired? (PDF)
Kanagawa Prefecture Existing Housing Energy Conservation Renovation Subsidy
Eligible Applicants
The eligible applicants for this subsidy are owners of existing homes located in Kanagawa Prefecture who reside in those homes on a daily basis. The eligible homes must be residences where the owner themselves lives, regardless of whether they are single-family homes or condominiums.
Eligible Work and Conditions
To receive the subsidy, the following requirements must be met. First, it is necessary to conduct energy conservation renovation work using products such as windows, glass, and insulation materials with specified insulation performance designated by the national government, targeting existing homes in the prefecture. Additionally, the residence must ensure seismic performance, and a pre-application must be submitted before starting the work, with work commencing only after receiving a grant decision. Eligible renovation work includes insulation improvements for windows, floors, walls, and ceilings.
Subsidy Amount
The maximum amount for this subsidy is 200,000 yen per residence. This is the total subsidy provided when eligible energy conservation renovation work is carried out, and no more than this amount can be received.
Subsidy Rate
The burden ratio for the subsidy is **one-third (approximately 33%) of the eligible construction costs**. However, even if the calculated amount based on the subsidy rate exceeds the maximum amount of 200,000 yen, the amount granted will be “up to the maximum amount.”
For more details, please see here!
Child-Rearing Green Housing Support Project
Eligible Applicants
This program targets child-rearing households (households with children under 18) and young couple households, focusing on those who are constructing or purchasing energy-efficient homes, or renovating existing homes for energy conservation. For new constructions, the builder or purchaser is eligible, while for renovations, the contractor placing the order is eligible for the subsidy.
Requirements
For new residential buildings, it is necessary to meet high energy-saving performance standards set by the government, such as ZEH level or higher. In the case of renovations, it is a condition to carry out construction that improves the energy-saving performance of the house, such as insulation renovations or the introduction of energy-saving equipment. In either case, it is necessary to contract with a registered contractor and carry out the construction within the specified period.
Subsidy Limit Amount
For new constructions, the maximum amount per unit is between 400,000 yen and 1,600,000 yen depending on the performance category of the house, while for renovations, the maximum amount per unit is between 400,000 yen and 600,000 yen depending on the content of the work. In both cases, even if multiple constructions are carried out, it is not possible to receive subsidies exceeding this limit amount.
Subsidy Rate
This program does not provide a subsidy based on a certain percentage of construction costs; instead, a predetermined “fixed subsidy” is provided for each type of work and performance category. Therefore, in effect, the government bears part of the construction costs.
For more details, please click here!
Advanced Window Renovation Project
Eligible Participants
Homeowners of existing residential buildings (single-family homes and apartment buildings) who are conducting insulation renovation work on windows and openings are eligible. The actual subsidy application process is carried out by registered “window renovation contractors” with the government, and the granted subsidies are fully refunded to the homeowners through discounts on construction costs.
Requirements
Eligible renovations include window improvements aimed at enhancing insulation performance, such as installing interior windows, replacing exterior windows, and replacing glass in existing homes. It is necessary to use products that meet the insulation performance standards set by the government and to enter into a construction contract with a registered window renovation contractor. Additionally, the total subsidy amount must be 50,000 yen or more, and construction must start and be completed within the specified period.
Subsidy Limit Amount
The maximum subsidy amount is 2,000,000 yen per unit. Even if multiple windows are renovated, the total subsidy amount that can be received for the same residence is limited to this maximum amount.
Subsidy Rate
The subsidy rate is approximately equivalent to half of the construction costs. The actual subsidy amount is set at a fixed rate based on the type of window (interior window, exterior window, glass), size, and insulation performance category, resulting in a total that is approximately 50% of the construction costs.
For more details, please click here!
Examples of Costs for Major Repairs
These are examples of costs for each repair work!
(度合いにより変動します)
(度合いにより変動します)
Resin Mortar
(Varies depending on the degree)
(Varies depending on the degree)
※Costs and warranty periods may vary depending on the shape, quantity, condition of the substrate, and type of materials.
If you would like a detailed estimate, please feel free to contact us!
Estimates are completely free of charge.
Customer Feedback
Case Study of Exterior Renovation Work on a Mixed-Use Building
| Construction Details |
| Partial replacement of damaged tiles Painting of ancillary parts (pipes, water cut-off) Roof waterproofing work (urethane waterproofing) Exterior wall tile waterproofing (Seven S) Sealing work around sashes Repair of exterior wall tile mortar joints Removal of ivy |
| New Materials Used |
| Exterior wall tiles: Kunishiro tiles Painting of ancillary parts: Radical silicone paint Roof waterproofing: High-strength urethane (Sarasene A) Exterior wall tile waterproofing: Seven S |
| Price Range |
| 4,000,000〜4,100,000 yen |
| Construction Period |
| 45 days |
| Process Leading to Construction |
| Due to leaks occurring from several areas such as the exterior walls and rooftop, we proposed waterproofing for the entire exterior wall. The Seven S is a clear waterproofing material for tile exterior walls, and while it is somewhat expensive, its high waterproofing capability makes it a recommended choice when leaks are occurring from multiple areas of the exterior wall. |
How to Choose a Large-Scale Renovation Contractor
There are many large-scale renovation contractors that serve Hiratsuka City, and it can be confusing to decide which one to choose.
Therefore, when requesting renovations for apartments, condominiums, or buildings, be sure to check the following four points:
● Extensive experience in large-scale renovations
● Confirm the presence of warranties and aftercare services
● Obtain estimates from multiple contractors (at least three)
● Verify if they manage their own projects
By confirming the above four points, you will be able to choose a reliable contractor.
Extensive Experience in Large-Scale Renovations
Large-scale renovation contractors often have websites that showcase their exterior renovation projects.
Additionally, if they provide detailed explanations of repair work with photos, it offers reassurance as it can serve as a reference when you actually request repairs.
If you are concerned about whether the contractor you are about to hire will respond adequately, choose one with extensive experience in large-scale renovations.
It can also be effective to refer to reviews on Google and review sites to look at skylight installation contractors!
If there are many negative reviews or no reviews at all, it may be wise to refrain from requesting their services.
Large-scale repair work involves not only the construction itself but also the potential for troubles with residents and nearby neighbors. Therefore, it is necessary to prevent issues in advance by reporting on the progress of the work and posting information about laundry, etc., on bulletin boards.
Kakeru Koumuten Co., Ltd. specializes in exterior construction, and we receive many requests for exterior renovations of apartments and condominiums.
Check for warranties and after-sales maintenance
When choosing a large-scale repair company, make sure to check for warranties.
If any issues such as leaks occur after the construction, having a leak warranty from the contractor ensures that repairs can be made at no cost, providing peace of mind!
Additionally, companies that offer warranty periods are often confident in their work, which can serve as a criterion for selecting a contractor!
Warranty periods vary by contractor and the nature of the work, but typically range from 1 to 10 years.
Emergency repairs or partial fixes often do not come with a leak warranty.
Moreover, some contractors offer after-sales services separate from warranties, so be sure to check if the contractor you are considering has warranties and after-sales services.
Kakeru Koumuten Co., Ltd. sends out annual direct mail for after-sales maintenance, allowing for yearly inspections.
We provide free support for simple repairs such as partial sealing.
Obtain estimates from multiple contractors (at least three)
When requesting large-scale repairs, obtain estimates from multiple contractors.
It is important to obtain estimates from at least three companies and compare their estimates and reports!
Even for the same type of work, repair costs and warranties or after-sales services can vary by contractor.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at a lower price, obtaining estimates from multiple contractors is essential.
When comparing estimates, consider not only the cost but also
“the items in the estimate”
“the methods and materials for base repair work and exterior wall painting”
“confirmation of the process”
and make detailed comparisons! If the quality of auxiliary materials is low or if processes are skipped, costs can be reduced, so avoid making decisions based solely on price!
Especially regarding base repair work, which can be difficult to assess visually, ensure that the repair method is appropriate for the condition of the base!
Check if it is managed in-house
Large-scale renovation work includes various tasks such as “substrate repair work,” “exterior wall painting,” “waterproofing work,” and “pipe replacement!”
The plan details will vary depending on the actual state of deterioration and the customer’s wishes.
If a contractor completely outsources to subcontractors, they may lack knowledge and experience, leading to proposals for repairs in the wrong areas or unnecessary work.
This can result in additional time and costs as you will need to investigate and then request subcontractors.
By having knowledge and experience and managing in-house, responsible construction can be carried out at a lower cost.
Additionally, if a contractor is outsourcing to subcontractors, one of the drawbacks is that their response may be slow in case of any trouble during construction.
It is safer to avoid companies that do not have direct meetings with customers managing the construction.
Kakeru Koumuten Co., Ltd. is a company that conducts everything from temporary scaffolding installation to exterior wall painting and waterproofing work in-house.
Knowledgeable and experienced personnel will manage the construction!
If you are looking for a large-scale renovation contractor in Hiratsuka City, please contact Kakeru Koumuten
Our company has handled many exterior wall renovations for condominiums and apartments in Hiratsuka City. We are happy to assist not only with large-scale renovation work but also with partial repairs and leak repairs.
In urgent cases such as leaks, we may also be able to provide emergency measures, so please feel free to consult with us!
“I want it to last long with one renovation,” “I want to keep costs down as much as possible,” “I want to improve insulation performance because the indoors are hot“, we will provide optimal solutions for your specific requests and future repair plans.
We carry out everything from temporary scaffolding work to roofing and exterior wall painting completely in-house.
We are confident that we will not be outdone in terms of cost, quality, and organization compared to other companies for exterior work!
We welcome competitive estimates as we are confident in our work!
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
List of Areas in Hiratsuka City, Kanagawa Prefecture
Akashi-cho, Hiratsuka / Tenuma, Hiratsuka / Iijima, Hiratsuka / Denawa, Hiratsuka / Irino, Hiratsuka / Iribe, Hiratsuka / Enoki-cho, Hiratsuka / Oimatsu-cho, Hiratsuka / Oiwake, Hiratsuka / Oogami, Hiratsuka / Ooshima, Hiratsuka / Oohara, Hiratsuka / Okazaki, Hiratsuka / Kataoka, Hiratsuka / Kamiyoshizawa, Hiratsuka / Kamihiratsuka, Hiratsuka / Kitakaname, Hiratsuka / Kitatoyoda, Hiratsuka / Shirotokoro, Hiratsuka / Kousho, Hiratsuka / Kyoryotei, Hiratsuka / Kurobeoka, Hiratsuka / Kawachi, Hiratsuka / Goten, Hiratsuka / Konabesima, Hiratsuka / Saiwaicho, Hiratsuka / Sakuragaoka, Hiratsuka / Sanada, Hiratsuka / Shironomiya, Hiratsuka / Shimoyoshizawa, Hiratsuka / Shimojima, Hiratsuka / Shinmachi, Hiratsuka / Suga, Hiratsuka / Sumirehira, Hiratsuka / Suwa-cho, Hiratsuka / Asama-cho, Hiratsuka / Sengokugashi, Hiratsuka / Chisugaya, Hiratsuka / Sodegahama, Hiratsuka / Daikan-cho, Hiratsuka / Takane, Hiratsuka / Takahamadai, Hiratsuka / Takamura, Hiratsuka / Takaracho, Hiratsuka / Tachinonomachi, Hiratsuka / Tamura, Hiratsuka / Tachijougaoka, Hiratsuka / Tsuchiya, Hiratsuka / Tsuji-cho, Hiratsuka / Teradanawa, Hiratsuka / Karagehara, Hiratsuka / Tokunobu, Hiratsuka / Toyoda Utemaki, Hiratsuka / Toyoda Komine, Hiratsuka / Toyoda Byoudouji, Hiratsuka / Toyoda Hongou, Hiratsuka / Toyoda Miyashita, Hiratsuka / Toyohara-cho, Hiratsuka / Nakazato, Hiratsuka / Nakado, Hiratsuka / Nakahara, Hiratsuka / Nakahara Kamijuku, Hiratsuka / Nakahara Shitajuku, Hiratsuka / Nagatoro, Hiratsuka / Nagamochi, Hiratsuka / Nadeko-hara, Hiratsuka / Nishikimachi, Hiratsuka / Nishimando, Hiratsuka / Nishiyahata, Hiratsuka / Niji-gahama, Hiratsuka / Nesakamata, Hiratsuka / Hanamizudai, Hiratsuka / Bairin, Hiratsuka / Bairin Honmachi, Hiratsuka / Higashi Mando, Hiratsuka / Higashi Toyoda, Hiratsuka / Higashi Nakahara, Hiratsuka / Higashi Yahata, Hiratsuka / Hinataoka, Hiratsuka / Hiratsuka, Hiratsuka / Hirokawa, Hiratsuka / Fujimimachi, Hiratsuka / Fujimino, Hiratsuka / Satsubamachi, Hiratsuka / Beniyamacho, Hiratsuka / Matsukaze-cho, Hiratsuka / Matoi, Hiratsuka / Manda, Hiratsuka / Mitsuke-cho, Hiratsuka / Minami Kaname, Hiratsuka / Minami Toyoda, Hiratsuka / Minamihara, Hiratsuka / Miya no Mae, Hiratsuka / Miyamatsu-cho, Hiratsuka / Megumi ga Oka, Hiratsuka / Momohama-cho, Hiratsuka / Yaezaki-cho, Hiratsuka / Yachiyo-cho, Hiratsuka / Yamashita, Hiratsuka / Yahata, Hiratsuka / Yuuhi ga Oka, Hiratsuka / Yokouchi, Hiratsuka / Yoshizai, Hiratsuka / Ryuujo ga Okashima
・When should large-scale renovations be carried out? An explanation of the optimal timing and risks of postponement!
・Estimates are essential when conducting large-scale renovations! Key points for comparison and precautions!
・5 common troubles in large-scale renovations of condominiums! A thorough explanation of causes and prevention measures!
・What is waterproofing work in large-scale renovations? A thorough explanation of roles, signs of deterioration, and precautions!
・Not enough funds for large-scale renovations… An explanation of how to deal with funding shortages and preparations you can do right now!
・What is surface repair that is important in large-scale renovations? A thorough explanation of necessary reasons, signs of deterioration, and types of work!
・What is sealing work in large-scale renovations? An introduction to roles, methods, and tips for avoiding failures!
・What is tile repair that is important in large-scale renovations? An explanation of signs of deterioration, types of work, and cost averages!
・What is exterior wall painting that is important in large-scale renovations? A thorough explanation of necessity, signs of deterioration, and cost averages!
・For exterior renovations in Hiratsuka City, Kanagawa Prefecture, trust Kakeru Koumuten!
・For roof renovations in Hiratsuka City, Kanagawa Prefecture, trust Kakeru Koumuten!
・For exterior wall painting in Hiratsuka City, Kanagawa Prefecture, trust Kakeru Koumuten!
We welcome inquiries via LINE as well◎
We are also updating our Instagram regularly◎ Please follow us◎
AAA is a young company with an average age in the early 20s, but our technology is second to none.
One of our greatest strengths is that we can do all of our own scaffolding, roofing, and painting work. In this industry, where work is generally divided, we are able to provide a complete set of services, which saves time and effort in management and reduces costs. Above all, if there is any trouble, we will come to you right away!
We can confidently declare this. We are the youngest and most friendly renovator in Kanagawa!




