[Tokyo, Higashiyamato City] Vacant House & Used Property Renovation | Cost Estimates, Subsidies, and Case Studies
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For those considering renovation of used properties and vacant houses in Higashiyamato City
I bought a used property, but I’m not sure if the renovation estimate I received is reasonable.
This is my first full renovation, and I’m worried about making mistakes.
I want to make the most of subsidies and grants.
For such concerns, Kakeru Koumuten Co., Ltd., which has numerous achievements in Higashiyamato City, will clearly explain the key points for a successful renovation.
Be sure to obtain estimates from at least 3 companies!
01Reasons for the Increase in Renovations of Used Properties and Vacant Houses in Higashiyamato City
Higashiyamato City, Tokyo, is a green residential city that spreads at the foot of Tama Lake (Murayama Reservoir) and Sayama Hills. Along the Seibu Line and Tamagawa Josui, there are clusters of apartments and single-family homes, offering a balance of urban access and nature.
Single-family homes and apartment complexes developed during the Showa era are now entering a period of generational change, reaching 40 to 50 years of age. This is why the option of “buying used single-family homes or apartment units and renovating (renovating) them to suit your lifestyle” is expanding in Higashiyamato City.
Nature of Tama Lake and Sayama Hills
A calm residential area close to the greenery of Sayama Hills and Tama Lake. The movement to live on through used properties and renovations is active.
Updating Showa Era Single-family Homes and Apartments
Apartments and single-family homes in areas like Sakuragaoka are now 40 to 50 years old. There is a growing need to update plumbing, insulation, and water facilities.
City Subsidies for Earthquake Resistance
The earthquake renovation subsidy in Higashiyamato City is 1/3 of the cost, with a maximum limit of 300,000 yen. This supports the earthquake resistance of older wooden houses.
Utilizing National and Tokyo Prefectural Systems for Insulation and Energy Savings
Insulation, windows, and solar power will be utilized primarily through the national “Housing Energy Saving 2026” program and Tokyo’s systems.
This article summarizes the reasons, points to consider, cost averages, the latest subsidies for 2026, and how to choose contractors from the perspective of Kakeru Koumuten, a locally-focused construction company, to help those considering renovating used properties or vacant houses in Higashiyamato City avoid “failure.”
The Most Important Thing is “Comparative Estimates”
To avoid mistakes in renovations, the most crucial step is comparative estimates. First, obtain estimates from at least three construction companies that serve the Higashiyamato City area. Our company, Kakeru Koumuten Co., Ltd., also receives numerous consultations and requests for renovations of vacant houses and used properties.
02Reasons for Renovating Vacant Houses and Used Properties
In recent years, the Japanese housing market has expanded options not only for new builds but also for renovating used properties. Interest in purchasing used homes for renovation and revitalization is growing. Here, we explain the typical reasons for renovating vacant houses and used properties.
Reason 1 To Live Comfortably in Your Own Home
The most common reason for purchasing and renovating a used property is “to live comfortably.” Older homes often have issues with the roof, exterior walls, and plumbing, making them difficult to live in as they are. By renovating and upgrading the facilities and interiors, you can create a comfortable living environment. Additionally, by changing the layout and refreshing the interior, you can achieve a home that suits your family’s lifestyle at a lower cost than new construction.
Reason 2 To Increase Asset Value for Sale
More people are purchasing and renovating used properties with the intention of selling them. Used homes are often valued low as-is, but renovations can enhance their appearance and performance, increasing their value as properties.
Reason 3 To Utilize as Investment or Business
For purchases made for investment or business purposes, renovations are essential. By transforming properties into stylish rentals or share houses, you can differentiate them from other properties, and depending on the location and planning, you can also expect improved profitability. Initial costs can be lower than new construction, and depending on the use and conditions, there may be cases where subsidies or tax incentives apply, leading to an increase in the number of people utilizing vacant houses for business.
03Points to Consider When Renovating Vacant Houses and Used Properties
Point 1 Choose a Reliable Construction Company
First and foremost, it is essential to select a contractor you can trust to handle your renovation. Since used properties have had previous occupants, the internal structure and condition are often not clear until you actually see them. Choose a contractor who can carry out the work properly according to your wishes, the structure of the house, and the surrounding environment, and who also provides aftercare following the construction.
Point 2 Always Check the Condition of the Building
For used properties and vacant houses, it is crucial to check which parts have deteriorated and to what extent beforehand. Since the property has been lived in by someone else, internal damage is often not apparent without investigation. Conduct a current condition survey before starting construction to identify any hidden deterioration.
Point 3 Review Earthquake Resistance and Insulation Performance
In the renovation of used and vacant houses, it is particularly important to review earthquake resistance and insulation. The earthquake resistance standards were significantly revised in 1981, and homes built before that may not meet current standards. Furthermore, in 2000, regulations regarding joints and foundations were strengthened, making older buildings more likely to lack earthquake resistance. Check the condition of the building before starting construction and be sure to check earthquake resistance and insulation.
Point 4 Check Subsidy Programs and Renovation Tax Deductions
To keep construction costs down, it is important to check for subsidies and renovation tax deductions. Subsidies are provided by the national and local governments, covering part of the costs for earthquake retrofitting, energy-saving renovations, and barrier-free renovations. Tax deductions include the “housing loan tax deduction” when using a housing loan, and there are systems that allow for deductions on certain costs even with personal funds. These can sometimes be used in combination, so it is essential to check in advance and plan to utilize them strategically for a successful renovation (for the latest information, refer to this subsidy section).
04Cost Estimates for Renovating Vacant Houses and Used Properties
The renovation costs for used properties and vacant houses vary significantly depending on the extent of damage and the scope of work. First, please understand the approximate cost estimates by area to use as a guideline for your financial planning (the table below provides general estimates for typical single-family homes. The interior is based on a room of about 6 tatami mats, and the exterior is based on the indicated scope of work. Actual estimates will be provided after a site survey).
1. Roof and Exterior Walls
| Construction Details | Estimated Cost |
|---|---|
| Roof Repair & Painting | Approximately 200,000 to 800,000 yen |
| Roof Replacement & Overlay Method | Approximately 700,000 to 2,500,000 yen |
| Exterior Wall Painting | Approximately 600,000 to 1,500,000 yen |
| Exterior Wall Replacement & Overlay Method | Approximately 1,500,000 to 3,000,000 yen |
2. Interior (Interior Finishing)
| Construction Details | Estimated Cost |
|---|---|
| Floor Replacement (approximately 6 tatami mats, flooring, etc.) | Approximately 100,000 to 300,000 yen |
| Wallpaper Replacement (approximately 6 tatami mats) | Approximately 50,000 to 150,000 yen |
| Ceiling Repair & Painting (approximately 6 tatami mats) | Approximately 30,000 to 100,000 yen |
| Renovation from Japanese-style Room to Western-style Room (1 room) | Approximately 200,000 to 600,000 yen |
3. Water-related Facilities
| Construction Details | Estimated Cost |
|---|---|
| Kitchen Replacement | Approximately 450,000 to 1,500,000 yen |
| Bathroom Renovation (Unit Bath) | Approximately 600,000 to 1,500,000 yen |
| Toilet Replacement | Approximately 120,000 to 500,000 yen |
| Vanity Replacement | Approximately 80,000 to 300,000 yen |
4. Equipment & Infrastructure
| Construction Details | Estimated Cost |
|---|---|
| Water Heater Replacement | Approximately 100,000 to 500,000 yen |
| Pipe Replacement (Aging Water Pipes, etc. – Partial Work) | Approximately 100,000 to 500,000 yen |
| Electrical Wiring Work (Partial Work) | Approximately 100,000 to 500,000 yen |
| Insulation Renovation (Replacing Multiple Windows, Installing Inner Windows, etc.) | Approximately 200,000 to 1,000,000 yen |
5. Waterproofing & Earthquake Resistance
| Construction Content | Estimated Cost |
|---|---|
| Balcony Waterproofing Work | Approximately 100,000 to 400,000 yen |
| Seismic Reinforcement Work | Approximately 500,000 to 2,000,000 yen |
6. Exterior Work
| Construction Content | Estimated Cost |
|---|---|
| Entrance Door Replacement | Approximately 200,000 to 500,000 yen |
| Gate and Fence Renovation | Approximately 200,000 to 800,000 yen |
| Parking Lot Improvement (for 1 car, including concrete pouring, etc.) | Approximately 200,000 to 600,000 yen |
*The above are general estimates. Costs may vary depending on the presence of scaffolding, the condition, grade, and area of the building. Waterproofing of rooftops and updates to plumbing and wiring for the entire house may exceed the above estimates depending on area and method. Please confirm the exact costs through a free on-site survey and estimate.
For more details, please check the construction menu and price list!
05[Latest 2026] Subsidies and Grants Available in Higashiyamato City
One way to renovate used properties and vacant houses affordably is to utilize the subsidy and grant system. As of 2026, we have summarized the main systems that residents of Higashiyamato City may be able to use.
*The following information is as of September 3, 2026. The systems change annually in terms of content, duration, and budget, and many will end once the budget limit is reached. Please check with our company or the respective offices for the latest information before applying. Kakeru Koumuten can assist with confirming the systems and providing necessary documents, but the application process may differ depending on the system.
National Program: Housing Energy Saving 2026 Campaign
The government is implementing several subsidy projects targeting energy-saving renovations under the “Housing Energy Saving 2026 Campaign.” Construction for insulation, windows, and water heaters may be eligible for these subsidies.
This program is a successor to the “Child-Rearing Green Housing Support Project.” In principle, construction that meets specified requirements in eligible rooms, such as insulation renovations for openings and structures, is necessary. Eco-friendly housing equipment, child-rearing compatible renovations, disaster prevention improvements, and barrier-free renovations are included.
Subsidy upper limit guidelines: For buildings constructed before 1991, up to 1,000,000 yen per unit (50,000 yen depending on construction content); for buildings constructed from 1992 to 2016, up to 800,000 yen per unit (400,000 yen for the same). Eligible construction must start on or after November 28, 2025, and applications will be accepted starting June 30, 2026. Reservations must be made by November 16 at the latest, and grant applications must be submitted by December 31 at the latest (early termination may occur if the budget limit is reached). Applications must be made by registered contractors.
Renovations for window insulation, including interior window installation, exterior window replacement, and glass replacement, are eligible. The subsidy amount is substantial and effective for addressing cold, heat, and condensation issues. It can easily enhance the insulation performance of existing homes.
The subsidy amount varies based on the window construction method, performance, size, and the type of house. If the total subsidy amount for one application is less than 50,000 yen, it is not eligible. Applications have been accepted since March 31, 2026, and grant applications must be submitted by December 31 at the latest (early termination may occur if the budget limit is reached). Applications must be made by registered contractors.
This program targets the replacement of high-efficiency water heaters such as EcoCute, hybrid water heaters, and EneFarm. It is well-suited for used properties planning to replace water heaters.
Subsidy amount guidelines: EcoCute 70,000 to 100,000 yen per unit, hybrid water heaters 100,000 to 120,000 yen per unit, EneFarm 170,000 yen per unit. Eligible construction must start on or after November 28, 2025, and applications will be accepted starting March 31, 2026 (early termination may occur if the budget limit is reached).
Tokyo Metropolitan Program
High insulation windows (interior window installation, exterior window replacement, glass replacement), high insulation doors, insulation materials, and high insulation bathtubs are eligible. This program offers substantial subsidies that can significantly enhance the insulation performance of existing homes.
High-performance insulated windows and doors have a maximum subsidy of 2 million yen per unit (3 million yen per unit for security windows), insulation materials are subsidized at 1/3 of eligible expenses with a cap of 1 million yen, and high-performance bathtubs are subsidized at 95,000 yen per unit. Pre-registration starts on May 29, 2026, and application submissions are accepted from June 30, 2026. Individuals and corporations owning residences in Tokyo are eligible. The program is managed by Cool Net Tokyo. For more details, visit the official page.
This system provides direct discounts from the sales price for energy-efficient air conditioners, refrigerators, water heaters, and LED lighting when purchased at registered retailers, depending on the eligible devices. It pairs well with equipment updates when moving into used properties.
Eligible products, discount amounts, and eligibility periods may change. Individuals with an address in Tokyo are eligible. Please check the latest conditions on the official page and with registered retailers before making a purchase.
This program broadly supports the introduction of solar power, battery storage, high-performance windows, insulation materials, eco-cute systems, etc., into existing homes. It is suitable for those considering used properties with energy-saving equipment.
Battery storage is subsidized at 100,000 yen per kWh with a maximum of 1.2 million yen per unit. Subsidies are also available for solar power, insulation, and high-efficiency water heating, depending on the type of work (unit prices must be confirmed). All programs are applicable to existing homes. Applications for the 2026 fiscal year are also being accepted. For more details, visit the official page.
Higashiyamato City Programs
Support for earthquake resistance in Higashiyamato City, blessed with the greenery of Lake Tama and the Sayama Hills. This is effective for earthquake resistance when purchasing used wooden detached houses.
Earthquake diagnosis 1/3, maximum 50,000 yen; earthquake renovation 1/3, maximum 300,000 yen; demolition 1/3, maximum 300,000 yen. Eligible properties are wooden detached houses with two stories or less that started construction before May 31, 1981. The requirements for contractors within the city are not specified on the page (application for the 2026 fiscal year must be confirmed, pre-consultation is recommended). For more details, visit the official page of Higashiyamato City.
This is available for those certified as requiring support or care. Eligible items include handrails and eliminating steps.
The maximum subsidy is 200,000 yen (with a personal burden of 10-30%). An application before construction is necessary, so please check the eligibility requirements at your local government office. Insulation, windows, and solar power may be eligible under the national “Housing Energy Efficiency 2026” and Tokyo’s programs.
* In Higashiyamato City, grants for seismic diagnosis, seismic renovations, and demolition of wooden houses are available. Insulation, windows, solar power, and storage batteries are primarily covered by the national “Housing Energy Efficiency 2026” and Tokyo’s programs. Since eligibility, eligible work, and application periods differ by program, please confirm the latest information at each office before signing contracts or starting construction.
View information on renovation tax reductions and other programs
- Housing Loan Tax Reduction: If you use a housing loan for renovations that meet certain requirements, income tax and other deductions will be based on the year-end balance.
- Renovation Promotion Tax System (Investment-Type Tax Reduction): For work related to seismic upgrades, energy efficiency, barrier-free access, and long-term excellent housing, you may be eligible for income tax deductions even with personal funds.
- Reduction of Fixed Asset Tax: There are systems that reduce fixed asset tax for a certain period for seismic renovations, energy-saving renovations, and barrier-free renovations.
- Tokyo’s Insulation and Energy Efficiency Subsidy: The above “Tokyo’s programs” (energy-saving renovation promotion projects for existing homes, Tokyo Zero Emission Points, etc.) may be combined with the national “Housing Energy Efficiency 2026 Campaign.” If you are considering work on windows, insulation, or high-efficiency equipment, please consult us before starting construction.
While subsidies and tax reductions can sometimes be combined, there are restrictions on overlapping for the same work. Kakeru Koumuten will organize and propose which programs can be used for your work after a site survey.
06Customer Feedback
カテゴリ ‘voice’ は見つかりません
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customer reviews
Asao-ku, Kawasaki City | We received reviews about the ridge cap and rain gutter replacement work!
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customer reviews
Kohoku-ku, Yokohama | We received reviews about the roof overlay (cover method)!
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customer reviews
Kohoku-ku, Yokohama | We Received Reviews About Exterior Painting!
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customer reviews
Aoba-ku, Yokohama | We received reviews about our exterior fence construction!
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customer reviews
Tsurumi-ku, Yokohama | We received reviews about roof and exterior wall painting, as well as metalwork and rain gutter replacement work!
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customer reviews
Higashiyamato City, Tokyo | We received reviews about exterior painting and roof overlay (cover method)!
Examples of Roof Overlay Work in Higashiyamato City
| Construction Location | Higashiyamato City, Tokyo |
|---|---|
| Work Details | Roof overlay work |
| Existing Roofing Material | Slate |
| New Materials Used | Ai-Gi Industry / Super Galtect |
| Price Range | 700,000 yen – 800,000 yen |
| Completion Month | February 2023 |
Our Proposal
We assessed the condition of the existing slate roof and proposed the roof overlay method, which allows for the installation of new roofing materials without removing the existing roof. We have chosen Super Galtect from Ai-Gi Industry for its lightweight, excellent insulation, and durability.
07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Higashiyamato City
There are many renovation companies that serve Higashiyamato City, and it can be confusing to decide which one to choose. When requesting renovations, make sure to check the following five points.
- Having extensive experience in renovation work
- Confirming the presence of warranties and aftercare services
- Obtaining estimates from multiple contractors (at least 3 companies)
- Checking if the company performs renovations in-house
- Verifying if they offer color simulations and perspective drawings
1. Having extensive experience in renovation work
Many renovation contractors publish their construction achievements on their websites. If a contractor provides detailed explanations of the process with photos, it can help you visualize the outcome after the request, giving you peace of mind. If you’re unsure, choose a contractor with ample experience.
Google and review sites can also be helpful. It is important to check the content of low ratings, the company’s responses, and the timing of the posts. In particular, Google reviews are useful, but do not make your decision based solely on reviews; consider the construction achievements, estimates, and warranty details for a comprehensive judgment.
2. Confirming the presence of warranties and aftercare services
When choosing a contractor, be sure to check for warranties. If repairs are needed within the warranty period, they may be done for free. The duration varies by contractor and paint used, but typically ranges from 1 to 10 years (emergency repairs and partial repairs are often not covered). Some contractors also offer aftercare services in addition to warranties, so be sure to check both.
Kakeru Koumuten Co., Ltd. provides warranties for exterior renovations and sealing work. We also conduct aftercare services and send out annual reminder DM, making annual inspections possible.
Click here for more details on Kakeru Koumuten’s warranties and aftercare services
3. Obtaining estimates from multiple contractors (at least 3 companies)
When requesting renovations, be sure to obtain estimates from multiple contractors. Even for the same construction content, warranties, aftercare services, and prices can vary significantly. Having multiple estimates can also make price negotiations easier.
When comparing estimates, it’s important to look closely at not only the cost but also the “items in the estimate,” “confirmation of undercoating materials, sealing materials, and auxiliary paint,” and “confirmation of the process.” Lowering the rank of auxiliary parts or skipping processes can reduce costs, so it’s essential to not make judgments based solely on price.
Learn more about the key points for comparing estimates
4. Confirm whether the company conducts renovations in-house
Kakeru Koumuten Co., Ltd. conducts detailed hearings and investigations regarding the existing “condition,” “location,” “base materials,” “desired durability,” and “design,” and proposes the optimal plan. While there is nothing inherently wrong with a system where partner companies carry out the work, it is important to confirm whether the contracted company understands the construction details and has clear responsibilities for quality control and guarantees. If the work is done in-house, it becomes easier to coordinate with the site, allowing for quicker responses in case of any issues.
5. Check if they offer color simulations and perspective drawings
Choosing colors and envisioning the look after construction can be challenging for both exterior and interior projects. With simulations, you can reduce the risk of mistakes like “it turned out differently than I imagined.” Since it is difficult to redo once the work is done, it is advisable to choose a company that can accommodate flexible simulations.
08Reasons why Kakeru Koumuten is chosen for renovations of used houses in Higashiyamato City
One reason is that “Kakeru Koumuten also serves Higashiyamato City,” but
we have initiatives in “vacant house and used property renovations” that cannot be imitated by other companies,
which has received high praise from many customers.
We have absolute confidence in “cost,” “quality,” and “plans” for renovations in Higashiyamato City. Please compare our estimates with those of other companies.
The most important aspect of renovation is comparing estimates. Request estimates from at least 3 companies that operate in Higashiyamato City!
1. Equipment Specialized for In-House Renovations
Kakeru Koumuten Co., Ltd. has organized warehouses and material storage areas to provide high-quality renovations at low costs. We have 5 bases centered around Aoba-ku, Yokohama for material storage and showrooms.
In-House Scaffolding Materials
We can construct temporary scaffolding, which is essential for exterior renovations, using our own scaffolding materials and in-house scaffolding team. By not outsourcing, we can achieve cost reductions on scaffolding work. We own scaffolding materials for approximately 50 houses.
Storage of Materials in Our Large In-House Warehouse
We store roofing materials and paints. By placing large orders at once, we can procure materials at lower prices, and because we always have stock available, we can respond quickly in emergencies. We also have various tools ready for different types of construction, including compressors and cleaning machines.
In-House Waste Separation
In exterior renovations, various waste materials such as paint, wood, and metal are generated. While many contractors dispose of them all together, our company significantly reduces waste disposal costs by sorting and recycling waste materials.
Exterior Renovation Dedicated Showroom
In our showroom, you can not only have meetings but also check the actual paint colors and a wide range of catalogs. You can also confirm heat resistance using color simulation and heat-resistant paint testing equipment. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama, and is accessible from Tokyo as well.
2. Complete In-House Construction
A major strength of Kakeru Koumuten is our complete in-house construction. By maintaining a consistent system from inquiry to project completion, we can keep costs down while providing high-quality renovations. Since one representative handles everything from the estimate to project completion, there is no change in the person responsible for sales and construction management, allowing for smooth communication. All work, from temporary scaffolding setup to exterior wall painting and roof renovations, is carried out by our own skilled craftsmen. We are confident in our plans and costs, so we welcome competitive estimates.
3. Various Permits Obtained & Skilled Workers on Staff
We have obtained licenses for the construction industry and for the collection and transportation of industrial waste. We also have nationally certified sheet metal workers and painting specialists on staff, ensuring confidence in our construction techniques. We are capable of handling large-scale painting projects for factories and apartment complexes.
4. Warranty and Aftercare
Exterior wall painting and joint sealing work come with a warranty. Aftercare is available annually, and we send out notification DM each year. If you have concerns about the warranty, please click the image above for more information.
5. Flexible and Prompt Response
We are equipped to handle various exterior troubles and situations. If you cannot access the roof at height, we can respond using a drone. For leak investigations, we also use a thermal imaging camera. We respond according to our customers’ wishes, and we also accept emergency measures for sudden leaks from exterior walls only.
6. Human Resource Development
To enhance skills, we create various models and conduct practical training. Since exterior renovations vary in construction methods and materials based on existing materials and shapes, we regularly conduct technical skill enhancement training to ensure that each staff member can respond to various sites.
Click here for company information
7. Flexible Simulations for Both Exterior and Interior!
Kakeru Koumuten Co., Ltd. is dedicated to helping our customers choose colors and designs for both exterior and interior renovations, ensuring satisfaction with their important buildings.
7-1. Exterior Renovation Simulation
We offer color simulations for exterior wall painting, as well as simulations for metal siding and roof overlays. We can create simulations from actual photos of your building and propose several color patterns based on our recommendations. We also accommodate requests for “test painting” and “paint board arrangements” to confirm actual color tones.
7-2. Interior Renovation Simulation
We also provide simulations and perspective drawings for interior renovations. Based on your preferred style, such as modern, we suggest recommended simulations. Realistic perspectives are created from actual floor plans.
8. Solar Panel and Storage Battery Installation Work Available!
As part of renovations for used properties, more customers are introducing solar power systems that benefit from generous subsidies. Kakeru Koumuten Co., Ltd. also handles solar power installation work and proposes solar panels tailored to the shape of your roof. We can also accommodate requests for estimates and power generation simulations only.
09Renovation of Used Properties and Vacant Houses in Higashiyamato City | Frequently Asked Questions
We answer the most frequently asked questions from those considering renovations for used properties and vacant houses in Higashiyamato City.
Is it better to renovate after buying a used property or consult before purchasing?
If possible, please consult with us before making a purchase decision. Used properties often have deterioration that is not visible, and it is not uncommon to encounter unexpected construction costs after purchase. By having Kakeru Koumuten check the condition of the property you are considering in advance and providing an estimate for necessary renovations, you can establish a feasible financial plan.
What should be prioritized for renovation in a used house in Higashiyamato City?
Depending on the condition of the building, we prioritize areas that, if left unattended, could lead to further damage, such as leaks, termites, structural issues, and seismic concerns. After that, we will determine the order of work for exteriors such as roofs and walls, water areas (kitchen, bathroom, toilet), and insulation based on your budget and the impact on your daily life. In residential areas at the foot of Tamako and Sayama Hills, roofs and walls often reach the end of their lifespan first, so we recommend starting with a comprehensive inspection of the entire building, including the exterior.
I bought a used wooden house in Higashiyamato City. Are there any subsidies available?
In Higashiyamato City, there are subsidies available for seismic diagnosis of wooden houses (1/3, up to 50,000 yen), seismic retrofitting (1/3, up to 300,000 yen), and demolition. You may also be able to utilize national programs such as “Housing Energy Efficiency 2026” and those from Tokyo for insulation, windows, solar power, and storage batteries. We will check the applicable programs, including home renovations under long-term care insurance, and provide you with suggestions before the construction.
How much does a full renovation (full remodel) cost?
The cost of a full renovation for a detached house varies significantly depending on the scope and grade. If focusing on partial renovations, it typically starts from around 5 million yen, while large-scale renovations that include interior and exterior work, water areas, insulation, and seismic upgrades can exceed 10 million to 20 million yen. We will first assess the condition through an on-site survey and propose a prioritized plan that fits your budget.
Do I need to apply for subsidies myself? Is the process difficult?
The applicant varies depending on the program. For example, the national “Mirai Eco Housing 2026 Project” is a system where registered contractors (construction companies) apply. For seismic retrofitting and home renovations under long-term care insurance in your municipality, the application is generally made by the homeowner, but we will guide you through the necessary documents and process. We will organize and inform you about “which programs are available,” so please feel free to consult with us first.
What risks are there if I leave a vacant house unattended?
Leaving a vacant house can lead to worsening leaks and termite damage, deterioration of the exterior walls and roof resulting in decreased property value, and neglect of garden trees and equipment. Additionally, if you receive a recommendation from the municipality as a “poorly managed vacant house” or “designated vacant house,” there is a possibility that the special tax exemption for residential land may be revoked. Early inspections and necessary repairs aligned with your plans to live in, rent, sell, or utilize the property can ultimately help reduce costs.
I am concerned about seismic safety. How can I assess the seismic resistance of a used detached house?
The construction date is a significant indicator. Check if it was built after June 1981 (new seismic standards), and further if it was built after June 2000 (strengthening of joint and foundation regulations). For wooden houses built before that, we recommend a seismic diagnosis. Your municipality also offers subsidies for seismic retrofitting of wooden houses, which can significantly reduce costs if eligible (for details, see the subsidy section above). Kakeru Koumuten can assist you from diagnosis to retrofitting.
Will I need temporary housing during construction? How long will it take?
The scope of work depends on the project. For exterior renovations and partial interior work, it is often possible to carry out the construction while you remain in your home. However, for large-scale full renovations that include water areas, we may recommend a temporary relocation. The estimated duration is about 2 to 4 weeks for exterior work and approximately 1 to 3 months or more for full renovations. We will provide a schedule in advance and propose a plan that minimizes the impact on your daily life.
Is Higashiyamato City within your service area? Will there be any travel fees?
Yes, Higashiyamato City is within the service area of Kakeru Koumuten. Our headquarters is located in Aoba-ku, Yokohama, and we have five bases including a branch in Machida, covering a wide range of areas in Kanagawa Prefecture and Tokyo. Estimates are completely free, and we do not engage in persistent sales tactics. Please feel free to consult with us first.
Leave your renovations in Higashiyamato City to Kakeru Koumuten!
“I want a renovation that lasts a long time with just one project,” “I want to keep costs down as much as possible,” “I want to improve insulation because my home is hot”—we will propose the best solutions for your specific requests. We do not suggest unnecessary work that prioritizes profit.
We are confident in our costs, quality, and planning, so we welcome competitive estimates. Estimates are completely free.
Get your free estimate and consultation here
If you find our company to be inferior to others, feel free to decline outright.
View Kakeru Koumuten’s project examples
View our service menu and price list
10Features of Higashiyamato City
Higashiyamato City in Tokyo is a green residential city that spreads at the foot of the Tamako (Murayama Reservoir) and Sayama Hills. Along the Seibu Line and Tamagawa Josui, there are clusters of apartment complexes and single-family homes, offering a balance of urban access and nature.
Single-family homes and apartment complexes developed during the Showa era are now entering a generational transition, and the choice of buying used properties and renovating them has become established. Kakeru Koumuten is headquartered in Aoba-ku, Yokohama, and we undertake exterior and interior renovations across a wide area of Kanagawa Prefecture and Tokyo. We can perform all work in-house, including exterior wall overlay methods.
Areas We Serve for Renovations
Kakeru Koumuten accepts requests from a wide range of areas in Kanagawa Prefecture and Tokyo.
Main Areas in Higashiyamato City We Serve
Imokubo / Kamikitadai / Kiyohara / Kohan / Sakuragaoka / Sayama / Shimizu / Shinbori / Kurashiki / Takagi / Tateno / Tamako / Chuo / Nakahara / Narahashi / Minamimachi / Mukohara and other areas throughout Higashiyamato City
・Roof Repair and Construction Achievements in Higashiyamato City
・Exterior Renovation Achievements in Higashiyamato City
・Exterior Painting Achievements in Higashiyamato City
・Rain Gutter Repair and Cleaning in Higashiyamato City
・Waterproofing Work in Higashiyamato City
・Solar Panel Installation Work in Higashiyamato City
・About Roof Overlay (Cover Method)
・Kakeru Koumuten’s Renovation Case Studies Here!
・Kakeru Koumuten Co., Ltd. Construction Menu and Price List
・Reasons Why Kakeru Koumuten is Chosen Here!
・Kakeru Koumuten’s Warranty and Aftercare Information
・Company Overview of Kakeru Koumuten Co., Ltd.
・Staff Blog and Announcements of Kakeru Koumuten Co., Ltd.
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株式会社翔工務店へ
株式会社翔工務店は平均年齢２０代後半の若い会社ですが、技術はどこにも負けていません。
いちばんの強みは、足場工事、屋根工事、塗装工事とすべて自社で行えること。一般には分業されるこの業界にあって、一式で頼めるので管理に手間がかからず、コストも抑えることが出来ます。何より、トラブルがあればすぐにかけつけます！
自信をもって、宣言できます。私たちは、神奈川で一番若くて親切なリフォーム屋です！
