[Chofu City, Tokyo] Renovation of Vacant Houses and Used Properties | Costs, Subsidies, and Case Studies

Roofing Services

At Kakeru Koumuten Co., Ltd., we specialize in high-quality roofing solutions tailored to meet your needs. Whether you require a new roof installation, repairs, or maintenance, our experienced team is here to help.

Roof Overlay (Cover Method)

Our roof overlay method is an efficient way to enhance your roof’s durability without the need for a complete tear-off. This approach not only saves time but also minimizes waste, making it an eco-friendly choice.

Rain Gutter Installation

Proper rain gutter installation is crucial for protecting your home from water damage. Our team ensures that your rain gutters are installed correctly to direct water away from your foundation.

Exterior Painting

Enhance the curb appeal of your home with our professional exterior painting services. We use high-quality paints that withstand the elements, ensuring your home looks great for years to come.

Contact us today for a free estimate and let us help you with your roofing, rain gutter, and exterior painting needs!

Welcome to Kakeru Koumuten Co., Ltd., your trusted partner for roofing, rain gutters, and exterior painting services.

We pride ourselves on delivering high-quality craftsmanship and exceptional customer service. Whether you need a new roof, rain gutter installation, or exterior painting, our experienced team is here to help.

Contact us today for a free consultation!

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For those considering renovation of used properties and vacant houses in Chofu 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 Chofu City, will clearly explain the key points for a successful renovation.

Always obtain estimates from at least 3 companies!

01Reasons for the Increase in Renovations of Used Properties and Vacant Houses in Chofu City

Chofu City in Tokyo is a town where good residential areas with excellent access to the city center are spread around the Keio Line stations such as Chofu, Sengawa, and Tsutsujigaoka. Known as a movie town, it boasts a living environment enriched by the Tama River and the greenery of Jindaiji.

Houses developed during the Showa era are now entering a period of generational change, reaching 40 to 50 years old. This is why the option of “buying a used house and renovating (or renovating) it to suit your lifestyle” is expanding in Chofu City.

02Reasons for Renovating Vacant Houses and Used Properties

In recent years, the Japanese housing market has expanded options not only for new constructions but also for utilizing renovated used properties. There is growing interest in living in renovated or refurbished used homes. Here, we explain the typical reasons for renovating vacant houses and used properties.

Reason 1 To Live Comfortably as 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 interior, you can create a comfortable living environment. Additionally, through changes in layout and refreshing the interior, you can create a home that suits your family’s lifestyle while keeping costs lower 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 in their current state, but renovations can enhance their appearance and performance, thereby increasing their value as properties.

Reason 3 To Utilize as an Investment or Business

For purchases made for investment or business purposes, renovations are essential. By transforming into stylish rentals or share houses, you can differentiate from other properties, and depending on the location and planning, you can also expect improved profitability. Initial costs can be lower than new constructions, and depending on the usage and conditions, there may be subsidies or tax incentives available, leading to an increase in those 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 that 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 that can perform the work thoroughly according to your wishes, the structure of your home, and the surrounding environment, and that also provides aftercare following the construction.

Point 2 Always Check the Deterioration of the Building

For used properties and vacant houses, it is crucial to confirm which parts have deteriorated and to what extent in advance. Since the property has been occupied by someone else, internal damage is often not apparent without investigation. Be sure to understand any hidden deterioration through a current condition survey before starting construction.

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, and part of the costs for earthquake retrofitting, energy-saving construction, and barrier-free renovations may be supported. Tax deductions include the “housing loan tax deduction” when using a housing loan, and there are systems that allow for deductions on certain construction 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, please refer to this subsidy section).

04 Cost Estimates for Renovating Vacant Houses and Used Properties

The renovation costs for used properties and vacant houses vary significantly based on the extent of damage and the scope of work. First, please understand the approximate market rates by area to serve as a guideline for your financial planning (the table below provides general estimates for 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

2. Interior (Interior Finishing)

3. Water-related Equipment

4. Equipment & Infrastructure

5. Waterproofing & Earthquake Resistance

6. Exterior Works

*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 with a free on-site survey and estimate.

Please check the construction menu and price list for more details!

05[Latest 2026] Subsidies and Grants Available in Chofu City

*The following information is as of September 2, 2026. The content, duration, and budget of the systems change annually, and many will end once the budget limit is reached. Please check for the latest information with our company or the respective offices before applying. Kakeru Koumuten can assist with confirming the systems and providing necessary documents, but the applicant and application method may vary depending on the system.

National Program: Housing Energy Saving 2026 Campaign

The government is implementing multiple 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.

Tokyo Metropolitan Program

Chofu City Programs

06Customer Voices

Exterior Renovation Case Studies in Chofu City

07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Chofu City

There are many renovation companies that serve Chofu City, and it can be confusing to decide which one to choose. When requesting renovations, be sure to check the following five points.

1. Rich Experience in Renovation Work

Many renovation contractors publish their project 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 have concerns, choose a contractor with extensive 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; evaluate them comprehensively along with the company’s track record, estimates, and warranty details.

2. Confirm 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 type, but typically ranges from 1 to 10 years (emergency repairs and partial repairs are often not covered). Some contractors also offer aftercare services, so be sure to check for those as well.

Kakeru Koumuten Co., Ltd. provides warranties for exterior renovations and sealing work. We also conduct aftercare services, sending out annual reminder DM for annual inspections.
Click here for more details on Kakeru Koumuten’s warranties and aftercare services

3. Obtain estimates from multiple contractors (at least 3)

When requesting renovations, be sure to obtain estimates from multiple contractors. Even for the same work, warranties, aftercare services, and costs can vary significantly. Having multiple estimates makes price negotiations easier.

When comparing estimates, it is important to look at not just the costs, but also the “items in the estimate,” “check the undercoat materials, sealing materials, and paint for ancillary parts,” and “confirm the process” in detail. Lowering the rank of ancillary parts or skipping processes can reduce costs, so it is essential to not judge solely based on price.
Click here for detailed points on comparing estimates

4. Confirm whether the work is done in-house

Kakeru Koumuten Co., Ltd. conducts detailed hearings and surveys on the existing “condition,” “location,” “materials,” “desired durability,” and “design” to propose the most suitable plan. While there is no inherent problem with the system where partner companies perform the construction, it is important to confirm whether the contracted company understands the construction details and has clearly defined responsibilities for quality control and guarantees. If the construction is done in-house, it becomes easier to coordinate with the site, allowing for a quicker response in case of any issues.

5. Do they support color simulations and perspective drawings?

Choosing colors and envisioning the appearance 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 construction is completed, it is recommended to choose a company that can provide flexible simulations.

08Reasons why Kakeru Koumuten is chosen for remodeling used houses in Chofu City

One reason is that “Kakeru Koumuten also serves Chofu City,” but
“our unique approach to remodeling vacant and used properties that cannot be imitated by other companies”
has received high praise from many customers.

1. Equipment specialized for in-house remodeling

Kakeru Koumuten has organized warehouses and material storage to provide high-quality remodeling at low costs. We have 5 bases located in Kanagawa Prefecture and Tokyo, including Aoba-ku, Yokohama and Machida City, Tokyo.

In-house ownership of scaffolding materials

For exterior renovations, we can construct temporary scaffolding using our own scaffolding materials and in-house scaffolding team. By not outsourcing, this leads to cost reductions in scaffolding work. We own scaffolding materials for approximately 50 houses.

Materials stored 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 since we always have stock available, we can respond quickly in emergencies. We also have various tools available to handle 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, we separate and recycle waste materials, significantly reducing waste disposal costs.

Exterior renovation dedicated showroom

In our showroom, you can not only have meetings but also check the actual paint colors and a wide variety of catalogs. You can also confirm heat insulation properties using a heat insulation paint testing machine and color simulation. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama. It is also accessible from within Tokyo.

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. A single representative handles everything from the estimate to project completion, ensuring smooth communication without changes in sales or project management. 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 and Skilled Workers

We have obtained permits for the construction industry and for the collection and transportation of industrial waste. We also have nationally certified sheet metal 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 as well.

4. Warranty and Aftercare Maintenance

Exterior painting and joint sealing work come with a warranty. Aftercare is available every year, and we send out notification DM annually. If you have concerns about the warranty, please click on the image above for confirmation.

5. Flexible and Prompt Response

We are equipped to handle various exterior troubles and situations. Even if you cannot access the roof at high places, we can respond using a drone. For leak investigations, we also use a thermal imaging camera. We respond according to our customers’ wishes and also accept emergency measures for sudden leaks from the exterior walls only.

6. Human Resource Development

We create various models for skill enhancement and conduct practical training. Since exterior renovations differ in construction methods and materials based on existing materials and shapes, we regularly conduct technical improvement education to ensure each staff member can handle various sites.
Click here for company information

7. Flexible Simulations for Both Exterior and Interior!

Kakeru Koumuten Co., Ltd. is dedicated to helping you choose colors and designs for your important building renovations, both exterior and interior, to ensure your satisfaction.

7-1. Exterior Renovation Simulation

We can provide 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 patterns with our recommended color schemes. We also accommodate “test painting” and “arranging paint boards” to confirm the actual color tones.

7-2. Interior Renovation Simulation

We also support simulations and perspective drawings for interior renovations. Based on your preferred image, such as a modern style, we will propose recommended simulations. We create realistic perspectives from actual floor plans.

8. Solar Panel and Storage Battery Installation Work Available!

More customers are introducing solar equipment with abundant subsidies for renovations of used properties. Kakeru Koumuten Co., Ltd. also handles solar equipment installation and proposes solar panels tailored to the shape of your roof. We can also accept requests for estimates and power generation simulations only.

09Renovation of Used Properties and Vacant Houses in Chofu City | Frequently Asked Questions

We will answer the most frequently asked questions from those considering renovations of used properties and vacant houses in Chofu City.

View Kakeru Koumuten’s construction examples
View construction menu and price list

10Characteristics of Chofu City

Chofu City in Tokyo is a residential area with good access to the city center, centered around the Keio Line stations of Chofu, Sengawa, and Tsutsujigaoka. Known as a city of movies, it boasts an attractive living environment enriched by the Tama River and the greenery of Jindaiji.

Houses developed during the Showa era are now reaching a generational transition, and the choice of living on through used homes plus renovations is becoming established. Kakeru Koumuten has its headquarters in Aoba-ku, Yokohama, and offers a wide range of exterior and interior renovations throughout Kanagawa and Tokyo. We can perform all work in-house, including exterior wall overlay methods.

Areas Available for Renovation Services

Kakeru Koumuten accepts requests throughout Kanagawa and Tokyo.

Consultations via LINE are also very welcome◎

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