目次
- 1 If you are looking for a large-scale repair contractor in Kanzawa Town, Koza District, come to Kakeru Koumuten
- 2 Reasons why Kakeru Koumuten is chosen for large-scale repairs in Kanzawa Town, Koza District
- 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 Samukawa Town, Koza District補助金、助成金
- 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 Samukawa, Kōza District, please contact Kakeru Koumuten
If you are looking for
a large-scale repair contractor in
Kanzawa Town, Koza District, come to Kakeru Koumuten
Kakeru Koumuten is a complete in-house contractor capable of handling everything from temporary scaffolding installation to roof work, waterproofing, and exterior painting.
We have undertaken numerous large-scale repairs and exterior renovations for apartments, condominiums, and commercial facilities in Kanzawa Town, Koza District.
“Subsidies and costs available for large-scale repairs in Kanzawa Town, Koza District”
“How to choose a large-scale repair contractor in Kanzawa Town, Koza District”
“Why Kakeru Koumuten is chosen in Kanzawa Town, Koza District”
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 when considering large-scale repairs is
“multiple estimates”!
Let’s obtain at least 3 estimates from large-scale repair companies that cover Kanzawa Town, Koza District!
Reasons why Kakeru Koumuten is chosen for large-scale repairs in Kanzawa Town, Koza District
One reason why we are entrusted with large-scale repairs in Kanzawa Town, Koza District is that
“Our unique approach to large-scale repair work that cannot be imitated by other companies”
has received high praise from many customers.
“cost, quality, and plans” for exterior renovations of apartments, condominiums, and commercial facilities in Kanzawa Town, Koza District,
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 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 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!
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 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 in 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 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 the completion of the work.
Since the person in charge 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 work, and tile repairs 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 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 have qualified asbestos supervisors and asbestos surveyors on staff, enabling us to handle asbestos-containing roofing materials and conduct preliminary surveys.
4. Warranty and Aftercare
Most large-scale repair works come with a guarantee 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 inspect exterior walls and rooftops that cannot be checked from high places!
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 or emergencies!
6. Human Resource Development
Our staff create various models to enhance their skills and conduct practical training.
Since different processing and techniques are required depending on the site, we regularly provide skill improvement 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 we also install bulletin boards at entrances to display the schedule and announcements!
Additionally, we thoroughly educate entrants on manners to minimize 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.
When performing exterior wall painting or waterproofing work, we check the number of used paint cans to confirm that the specified amount of paint has been used, and we order paint in-house to prevent construction defects.
Of course, we also ensure that used paint is photographed and reported.
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 doing test painting, you can confirm the actual color and sheen!
9-3 Exterior Renovation Simulation
Exterior simulations for apartments and condominiums are also possible!
・Exterior wall color simulation (two-tone colors are possible)
・Simulation for when metal siding is applied
・Simulation using accent materials like cornices and louvers
・Simulations for roof painting and roof replacement work are also possible
With exterior renovation simulations, the risk of failure in image changes can be minimized!
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 Samukawa Town, Koza District補助金、助成金
In Samukawa Town, Koza District, there are potential subsidies available when carrying out renovation work on apartments and condominiums!
For details, please contact our company or your local government! (As of July 2026)
Condominium Longevity Promotion Tax System (Special Measures for Fixed Asset Tax)
There is a system that reduces fixed asset tax when large-scale repairs are made to condominiums.
◎ For more details, click here↓
Large-scale repairs to condominiums will reduce fixed asset tax! (PDF)
Is your condominium undergoing regular repairs? (PDF)
Kanagawa Prefecture Existing Housing Energy Conservation Renovation Subsidy
Eligible Applicants
The eligible applicants for this subsidy are owners of existing homes located within 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 Works and Conditions
To receive the subsidy, the following requirements must be met. First, the renovation work must target existing homes within the prefecture and utilize products with insulation performance specified by the national government, such as windows, glass, and insulation materials for energy conservation renovations. 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 works include 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 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 limit of 200,000 yen, the amount granted will be “up to the maximum limit.”
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 couples, focusing on those who are constructing or purchasing homes with high energy conservation performance, 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 standards. 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 and the introduction of energy-saving equipment. In both cases, it is necessary to contract with a registered contractor and carry out the construction within the specified period.
Subsidy Limit Amount
For new construction, the maximum amount per unit is between 400,000 yen and 1,600,000 yen, depending on the performance classification 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 the construction cost; instead, a predetermined “fixed subsidy” is provided for each type of work and performance classification. Therefore, in effect, the government bears part of the construction cost.
For more details, please check here!
Advanced Window Renovation Project
Eligible Participants
Owners of existing homes (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
The 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 construction period.
Subsidy Limit Amount
The maximum subsidy amount 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 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 classification, resulting in a total that is approximately 50% of the construction costs.
For more details, please check here!
Examples of Costs for Major Repairs
These are examples of costs for each repair work!
| Repair Method | Materials Used | Cost |
| Tile Replacement | Existing Similar Tiles | per piece/2,000 yen～4,000 yen |
| Repair of Floating Tiles and Mortar Areas | Epoxy Resin Injection | per square meter/3,000 yen～5,000 yen (Varies by degree) |
| Tile Joint Mortar Repair | Mortar for Tile Joints | per square meter/1,000 yen～2,000 yen (Varies by degree) |
| Concrete Spalling Repair | Reinforcement Rust Prevention Resin Mortar |
Per location/1,000 yen to 2,000 yen (Varies depending on the degree) |
| Crack Repair | Filler or Polymer Cement | m/100 yen to 2,500 yen (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 cutting) 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 tile: Kunishiro Tile 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 |
| Progress to Construction |
| Due to leaks occurring from several areas such as the exterior walls and the roof, we proposed waterproofing for the entire exterior wall. 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 areas of 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 cover Samukawa Town in Koza District, and it can be confusing to decide which contractor to choose.
For this reason, when requesting renovations for apartments, condominiums, and buildings, make sure to check the following four points:
● Extensive experience in large-scale renovations
● Confirm the presence of guarantees and aftercare services
● Obtain estimates from multiple contractors (at least three)
● Confirm whether they manage their own work
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 remodeling project achievements.
Additionally, if they provide detailed explanations of repair contents 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 properly, choose a contractor with extensive experience in large-scale renovations.
It is also effective to refer to reviews on Google and review sites when looking for skylight installation contractors!
If there are many negative reviews or no reviews at all, it may be wise to refrain from making a request.
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 through bulletin boards and other means.
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 demonstrate confidence 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 in addition to 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 assistance for simple repairs like partial sealing.
Obtain estimates from multiple contractors (at least 3 companies)
When requesting large-scale repairs, be sure to obtain estimates from multiple contractors.
It is important to obtain estimates from at least three companies and compare their reports and estimates!
Even for the same type of work, repair costs, warranties, and after-sales services can vary between contractors.
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, 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, since it may not be obvious from the exterior, be sure to check whether the repair method is appropriate for the condition of the substrate!
Check if it is managed in-house
Large-scale renovation work includes various types of construction 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 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 wise to avoid companies that do not have direct discussions with the customer managing the construction.
Kakeru Koumuten Co., Ltd. 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 Samukawa, Kōza District, please contact Kakeru Koumuten
Our company has handled many exterior wall renovations for condominiums and apartments in Samukawa, Kōza District. We are happy to assist not only with large-scale renovation work but also with partial repairs and rain leak repairs.
In urgent cases such as rain 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 the best 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 in exterior work!
We welcome comparison estimates as we are confident in our work!
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
List of Areas in Samukawa, Kōza District, Kanagawa Prefecture
Ichinomiya, Samukawa / Okura, Samukawa / Oogai, Samukawa / Okada, Samukawa / Kurami, Samukawa / Kotani, Samukawa / Koodou, Samukawa / Tabata, Samukawa / Nakase, Samukawa / Miyayama
・When should large-scale renovations be carried out? An explanation of the optimal timing and risks of postponement!
・Estimates are essential when carrying out 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!
・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 important substrate repair in large-scale renovations? A thorough explanation of its necessity, signs of deterioration, and types of work!
・What is sealing work in large-scale renovations? An introduction to its role, methods, and tips for avoiding mistakes!
・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 Samukawa, Koza District, Kanagawa Prefecture, trust Kakeru Koumuten Co., Ltd.!
・For roof renovations in Samukawa, Koza District, Kanagawa Prefecture, trust Kakeru Koumuten Co., Ltd.!
・For exterior wall painting in Samukawa, Koza District, Kanagawa Prefecture, trust Kakeru Koumuten Co., Ltd.!
We welcome consultations via LINE as well◎
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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!
