目次
- 1 If you are looking for a large-scale renovation contractor in Odawara City, come to Kakeru Koumuten
- 2 Reasons why Kakeru Koumuten is chosen for large-scale renovations in Odawara 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 Renovations in Odawara 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 Odawara City, please contact Kakeru Koumuten
If you are looking for
a large-scale renovation contractor
in Odawara City, come to Kakeru Koumuten
Kakeru Koumuten is a complete in-house construction company capable of handling everything from temporary scaffolding installation to roof work, waterproofing, and exterior painting.
We have undertaken numerous large-scale renovations and exterior reforms for apartments, condominiums, and commercial facilities in Odawara City.
“Subsidies and costs available for large-scale renovations in Odawara City”
“How to choose a large-scale renovation contractor in Odawara City”
“Reasons why Kakeru Koumuten is chosen in Odawara City”
These topics will definitely be useful for owners and management associations considering repairs or exterior renovations for apartments and condominiums, so please take a look!
To conclude, the most important thing to consider when planning a large-scale renovation is
“multiple estimates”!
Let’s obtain at least three estimates from large-scale renovation companies that cover Odawara City!
Reasons why Kakeru Koumuten is chosen for large-scale renovations in Odawara City

One reason why we can be entrusted with large-scale renovations in Odawara City is that
“Kakeru Koumuten has a base in Kanagawa Prefecture,” but
“Our unique approach to large-scale renovation work that cannot be imitated by other companies”
has received high praise from many customers.
“costs,” “quality,” and “plans” for exterior renovations of apartments, condominiums, and commercial facilities in Odawara 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 renovations.
We have established 5 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 renovations, allowing us to assemble scaffolding in-house.
By not outsourcing scaffolding work and using our own scaffolding team, we can cut costs on scaffolding work and provide quick and flexible responses.
We have approximately enough scaffolding materials for 100 single-family homes!
Material Storage 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 purchase materials at a lower cost!
Additionally, we always have stock available, allowing us to provide swift responses in emergencies!
In-house Waste Separation
In 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 samples and colors of exterior materials.
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, 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 contact person does not change, whether it’s the sales representative or the construction manager, smooth communication is possible.
We can fully handle everything from temporary scaffolding installation to exterior wall painting, substrate repair, waterproofing, and tile repair with our own staff!
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 and painting technicians on staff, giving us confidence in our construction techniques.
We are capable of handling large-scale roofing projects for factories and other facilities!
We have qualified personnel for asbestos management and asbestos surveyors, so we can handle asbestos-containing roofing materials and conduct preliminary surveys.
4. Warranty and Aftercare

Most large-scale repair work comes with guarantees 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 each year.
5. Flexible and Prompt Response
Our company is equipped to handle various troubles and situations related to apartments and condominiums.
We can also utilize drones to address exterior walls and rooftops that cannot be checked from high places!
During rain 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 rain 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 at each site, we regularly provide skill enhancement education to ensure that each staff member can respond appropriately.
We also educate our team on points to be careful about 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 we also set up bulletin boards at entrances to display project schedules and announcements!
Additionally, we ensure that all entrants are educated on proper manners 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 prevent any oversight.
When performing exterior wall painting or waterproofing work, we confirm the quantity of used paint cans to ensure the specified amount of paint is used, and we order paint in-house to prevent construction defects.
Of course, we also take photos of 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 simulations on your smartphone or computer.
By simulating and then applying two-tone colors or making image changes, we hope to help enhance the 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 painting, 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 applying metal siding
・Simulation using accent materials such as cornices and louvers
・Simulation for roof painting or roof replacement work is also possible
With the exterior renovation simulation, you can significantly reduce the risk of failure in image changes!
We hope that by renovating the appearance of your apartments and condominiums, we can help increase occupancy rates.
Subsidies and Grants That May Be Applicable for Large-Scale Renovations in Odawara City
In Odawara 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 government! (As of July 2026)
Condominium Long-Term Life Promotion Tax System (Special Measures for Fixed Asset Tax)
There is a system that reduces fixed asset tax when large-scale renovations are performed on condominiums.
◎ For more details, click here↓
Large-scale renovations on condominiums will reduce fixed asset tax! (PDF)
Is your condominium undergoing regular renovations? (PDF)
Kanagawa Prefecture Existing Housing Energy-Saving 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, the renovation work must target existing homes in the prefecture and utilize products with specified insulation performance such as windows, glass, and insulation materials designated by the national government. Additionally, the home must ensure seismic performance, and a pre-application must be submitted before starting the work, with construction 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 up to 200,000 yen per residence. This is the total subsidy provided when eligible energy-saving 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 of 200,000 yen, the amount granted will be limited to “the maximum amount”.
For more details, please click 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 efficiency. For new constructions, the builder or purchaser is eligible, while for renovations, the contractor placing the order is eligible for the subsidy.
Requirements
For newly built houses, it is necessary to meet high energy-saving performance standards set by the government, such as ZEH standards. In the case of renovations, it is required to carry out construction that improves the energy-saving performance of the house, such as insulation renovations and the introduction of energy-saving equipment. In both cases, it is necessary to contract with a registered business and carry out the construction within the specified period.
Subsidy Upper Limit
For new constructions, the maximum subsidy per unit is between 400,000 yen and 1,600,000 yen, depending on the performance classification of the house. For renovations, the upper limit is between 400,000 yen and 600,000 yen per unit, depending on the content of the work. In either case, even if multiple constructions are carried out, it is not possible to receive subsidies exceeding this upper limit.
Subsidy Rate
This program does not provide a subsidy based on a certain percentage of the construction cost, but rather a predetermined “fixed amount subsidy” is granted based on the content of the work and performance classification. Therefore, in effect, the government covers part of the construction cost.
For more details, please click here!
Advanced Window Renovation Project
Eligible Participants
Owners of existing houses (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 subsidy is fully refunded to the homeowners through discounts on the construction costs.
Requirements
Eligible renovations include window improvements aimed at enhancing insulation performance, such as the installation of interior windows, replacement of exterior windows, and glass replacement 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 Upper Limit
The upper limit for subsidies is 2,000,000 yen per unit. Even if multiple windows are renovated, the total subsidy that can be received for the same house is limited to this upper 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 classification, 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 repair work!
| Repair Method | Materials Used | Cost |
| Tile Replacement | Existing Similar Tiles | per piece/2,000 yen to 4,000 yen |
| Repair of Floating Tiles and Mortar Areas | Epoxy Resin Injection | per square meter/3,000 yen to 5,000 yen (Varies depending on the degree) |
| Tile Joint Mortar Repair | Mortar for Tile Joints | per square meter/1,000 yen to 2,000 yen (Varies depending on the degree) |
| Concrete Spalling Repair | Reinforcement Rust Prevention Resin Mortar |
Per location/1,000 yen~2,000 yen (Varies depending on the degree) |
| Crack Repair | Filler or Polymer Cement | m/100 yen~2,500 yen (Varies depending on the degree) |
※Costs and warranty periods 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 the roof, we proposed waterproofing for the entire exterior. The Seven S is a clear waterproofing material for tile exterior walls, and while the cost is somewhat high, its waterproofing performance is excellent. Therefore, if leaks are occurring from several points on the exterior wall, it is a recommended waterproofing material. |
How to Choose a Large-Scale Renovation Contractor
There are many large-scale renovation contractors that serve Odawara City, and it can be confusing to decide which one to choose.
For this reason, when requesting renovations for apartments, condominiums, and buildings, let’s 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)
● Confirm whether 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 achievements.
Additionally, if they provide detailed explanations of the repair work with photos, it can give you peace of mind 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 look at skylight installation contractors using reviews from Google and review sites as references!
If there are many negative reviews or no reviews at all, it might 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 the progress of the work and sharing information about laundry, etc., on bulletin boards.
Kakeru Koumuten Co., Ltd. specializes in exterior work, 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 work is completed, 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, making this a key 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 repairs often do not come with a leak warranty.
Furthermore, some contractors offer after-sales services in addition to warranties, so be sure to check if the contractor you are considering has warranties and after-sales services.
At Kakeru Koumuten Co., Ltd., we send out annual direct mail as part of our after-sales maintenance,
allowing for yearly inspections.
For simple repairs such as partial sealing, we provide services at no charge.
Obtain estimates from multiple contractors (at least 3 companies)
When requesting large-scale repairs, obtain estimates from multiple contractors.
It is important to get estimates from at least three companies and compare their reports and estimates!
Even for the same type of work, repair costs can vary between contractors, as can warranties and after-sales services.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at the best price, obtaining estimates from multiple contractors is essential.
When comparing estimates, it is important to look at more than just the cost,
“Items in the estimate”
“Methods and materials for substrate repair work and exterior wall painting”
“Confirmation of the process”
and make detailed comparisons! If the quality of auxiliary materials is low or if steps are skipped, costs can be reduced, so avoid making decisions based solely on price!
Especially regarding substrate repair work, which can be difficult to assess from appearance, ensure that the repair method is appropriate for the condition of the substrate!
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 change 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 inappropriate areas or unnecessary work.
This can result in additional time and costs as you will need to investigate before requesting a subcontractor.
By having knowledge and experience and managing in-house, responsible construction can be carried out while keeping costs down.
Additionally, one of the drawbacks of contractors that outsource is that if any trouble occurs during construction, their response may be delayed.
It is safer to avoid having a company that has not actually met with the customer manage 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 Odawara City, please contact Kakeru Koumuten
Our company handles many exterior wall renovations for condominiums and apartments in Odawara City. We are happy to assist not only with large-scale renovation work but also with partial repairs and leak repairs.
In case of emergencies such as leaks, we may also be able to provide temporary measures, so please feel free to consult 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 work completely in-house.
We are confident that we will not be outdone in terms of cost, quality, and efficiency compared to other companies!
We welcome competitive estimates with confidence!
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
List of Areas in Odawara City, Kanagawa Prefecture
Aonabe, Odawara City / Aonabe Shinden, Odawara City / Araya, Odawara City / Iizumi, Odawara City / Iidaoka, Odawara City / Ikegami, Odawara City / Isoyamada, Odawara City / Ishibashi, Odawara City / Itabashi, Odawara City / Irie, Odawara City / Enoura, Odawara City / Ogi-machi, Odawara City / Ogikubo, Odawara City / Kotake, Odawara City / Oniyanagi, Odawara City / Kobune, Odawara City / Kazematsuri, Odawara City / Kamimachi, Odawara City / Kamishinden, Odawara City / Kamosoga, Odawara City / Kayama, Odawara City / Kawai, Odawara City / Kitano-kubo, Odawara City / Kuno, Odawara City / Kuwahara, Odawara City / Kouzutsu, Odawara City / Kodai, Odawara City / Kotobuki-cho, Odawara City / Yonegami, Odawara City / Koyahata, Odawara City / Ei-cho, Odawara City / Sakawa, Odawara City / Shimizu Shinden, Odawara City / Shimo-Oi, Odawara City / Shimo-Shinden, Odawara City / Shimo-Hori, Odawara City / Juji, Odawara City / Jonai, Odawara City / Shiroyama, Odawara City / Soga Osawa, Odawara City / Soga Gishi, Odawara City / Soga Kōmi, Odawara City / Soga Bessho, Odawara City / Soga Yatsu, Odawara City / Soga Hara, Odawara City / Sobi, Odawara City / Takada, Odawara City / Tako, Odawara City / Tajima, Odawara City / Chiyo, Odawara City / Nakazato, Odawara City / Nakashinden, Odawara City / Nakasono, Odawara City / Nakacho, Odawara City / Nakamurahara, Odawara City / Nagatsuka, Odawara City / Narita, Odawara City / Nishi Otomo, Odawara City / Nishi Sakawa, Odawara City / Numashiro, Odawara City / Nebukawa, Odawara City / Nobukiyo, Odawara City / Haneo, Odawara City / Hamamachi, Odawara City / Hayakawa, Odawara City / Higashi Otomo, Odawara City / Higashigaoka, Odawara City / Higashimachi, Odawara City / Fukukawa, Odawara City / Besshori, Odawara City / Horinouchi, Odawara City / Honmachi, Odawara City / Maekawa, Odawara City / Mizuno, Odawara City / Midori, Odawara City / Minami Itabashi, Odawara City / Minami Kamosuga, Odawara City / Minami-machi, Odawara City / Yatsu, Odawara City / Yanagishinden, Odawara City / Yahagi, Odawara City / Yamanishi, Odawara City / Hasenjoji
・When should large-scale renovations be carried out? An explanation of the optimal timing and risks of postponement!
・Estimates are essential for 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 its role, signs of deterioration, and precautions!
・Insufficient funds for large-scale renovations… An explanation of how to deal with funding shortages and preparations you can do right now!
・What is important surface repair in large-scale renovations? A thorough explanation of the reasons needed, signs of deterioration, and types of work!
・What is sealing work in large-scale renovations? An introduction to its role, methods, and tips to avoid failure!
・What is important tile repair in large-scale renovations? An explanation of signs of deterioration, types of work, and cost averages!
・What is important exterior wall painting in large-scale renovations? A thorough explanation of its necessity, signs of deterioration, and cost averages!
・For exterior renovations in Odawara, Kanagawa Prefecture, trust Kakeru Koumuten!
・For roof renovations in Odawara, Kanagawa Prefecture, trust Kakeru Koumuten!
・For exterior wall painting in Odawara, Kanagawa Prefecture, trust Kakeru Koumuten Co., Ltd.!
Consultations via LINE are also very welcome◎
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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!




