Leave Skylight Repair and Replacement in Ota-ku, Tokyo to Kakeru Koumuten Co., Ltd.!

If you are looking for
skylight construction contractors in
Kakeru Koumuten

Kakeru Koumuten is a company that handles
everything from temporary scaffolding installation to
roof work and skylight construction with complete in-house execution.
We have received numerous requests for skylight repairs and replacements in Ota-ku, Tokyo.
We will promptly respond to urgent skylight repairs, such as leaks from the skylight (top light),
and emergency measures as well.

“About subsidies available for skylight construction in Ota-ku, Tokyo”
“About the costs of skylight repairs and replacements”
“Reasons why Kakeru Koumuten is chosen in Ota-ku, Tokyo” and more

For customers living in Ota-ku, Tokyo, who are considering skylight replacements,
this information will definitely be helpful, so please take a look!

To conclude, the most important thing when considering skylight construction is
“multiple estimates”!
Let’s obtain at least three estimates from skylight repair contractors covering Ota-ku, Tokyo!

Reasons why Kakeru Koumuten is chosen for skylight construction in Ota-ku, Tokyo

The reasons why we can be entrusted with skylight repairs in Ota-ku, Tokyo,
include the fact that “Kakeru Koumuten is a roofing company in Tokyo,”
but also“our unique approach to skylight replacement work that cannot be imitated by other companies”
, which has received high praise from many customers.

1. Equipment Specialized in Exterior Renovation

At Kakeru Koumuten Co., Ltd., we have prepared the following warehouses and material storage areas to provide low-cost, high-quality exterior renovations such as skylight installations.
We have established five bases for material storage and showrooms.

In-house Scaffolding Materials

We own the scaffolding materials necessary for temporary scaffolding required for skylight installations, allowing us to set up scaffolding in-house.
By performing scaffolding work with our own scaffolding team instead of outsourcing, we can cut costs on scaffolding work and respond quickly in emergencies.
We have scaffolding materials for approximately 50 single-family homes!

Storage of Materials in Our Large In-house Warehouse

 We store 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 respond quickly in emergencies!

In-house Waste Separation

During skylight construction, various waste materials such as roofing materials, glass, and wood are generated.
While most contractors dispose of them all together, we can significantly cut waste disposal costs by separating and recycling the waste materials.

Showroom Dedicated to Exterior Renovations

In our showroom, not only can you have meetings, but you can also
directly check the actual roofing materials and colors.
You can also perform color simulations for exterior painting and check thermal insulation properties using a thermal insulation testing machine!

2. Complete in-house construction for skylight installation

One of Kakeru Koumuten’s major strengths is our complete in-house construction.

From inquiry to project completion, everything is handled by Kakeru Koumuten in a consistent manner, allowing us to keep costs down while providing high-quality skylight installation.
Additionally, one representative will handle everything from the estimate to project completion.
Since the person in charge does not change, whether it’s the sales representative or the construction management representative, smooth communication is possible.

We can handle everything from the installation of temporary scaffolding to exterior painting, roofing work, and exterior cover work with complete in-house construction!

Since skylight installation involves dismantling or removing roofing materials, it can be significantly more cost-effective when done simultaneously with roofing replacement or cover work!

3. Various permits obtained and skilled workers on staff

We have obtained permits for construction work and industrial waste collection and transportation!
We have nationally certified sheet metal workers and painting technicians, and we are confident in our construction techniques.
We are also capable of handling large-scale roofing projects such as those for factories!
We have qualified asbestos supervisors and asbestos surveyors on staff, so we can handle asbestos-containing roofing materials and conduct preliminary surveys.

4. Warranty and Aftercare

The skylight replacement work comes with a warranty! Aftercare 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 skylights.

Even if you cannot access the roof at high altitudes, we can respond using a drone!
During leak investigations, we can also conduct surveys using a thermal imaging camera, which helps in identifying the cause of leaks!

We will respond according to your wishes.
We also accept emergency repairs for sudden leaks from skylights!

6. Human Resource Development

We are creating various roof models by ourselves to improve our skills and conducting practical training.
Since different processing and techniques are required depending on the site, we regularly conduct skill enhancement education to ensure that each staff member can respond appropriately.

Subsidies and Grants That May Apply to Skylight Construction in Ota-ku, Tokyo

In Ota-ku, Tokyo, there are potential subsidies available when carrying out skylight construction!
For details, please contact our company or your local government!

Child-Rearing Green Housing Support Project

Eligible Participants

Households with children (households with children under 18) and young couples are eligible for new construction or purchase of energy-efficient homes, or energy-saving renovations of existing homes. For new construction, the builder or purchaser is eligible, while for renovations, the contractor who orders the work is eligible for the subsidy.

Requirements

For new homes, it is necessary to meet high energy efficiency standards set by the government, such as ZEH standards. For renovations, it is required to carry out work that improves the energy efficiency of the home, such as insulation upgrades or the introduction of energy-saving equipment. In both cases, it is necessary to contract with a registered business and complete the work within the specified period.

Maximum Subsidy Amount

For new homes, the maximum subsidy ranges from 400,000 yen to 1,600,000 yen per unit, depending on the performance category of the home. For renovations, the maximum subsidy is between 400,000 yen and 600,000 yen per unit, depending on the work content. In either case, even if multiple works are carried out, the total subsidy cannot exceed this maximum amount.

Subsidy Rate

This project does not provide a subsidy based on a certain percentage of the construction cost; instead, a predetermined “fixed subsidy” is provided based on the work content and performance category. Therefore, in effect, the government bears part of the construction cost.

For more details, please see here!

Advanced Window Renovation Project

Eligible Participants

Owners of existing homes (single-family homes and apartment buildings) who are carrying out insulation renovation work on windows and openings are eligible. The actual subsidy application process is carried out by “window renovation contractors” registered with the government, and the granted subsidies are fully refunded to the homeowners through discounts on construction costs.

Requirements

Eligible renovations include window upgrades aimed at improving insulation performance, such as the installation of interior windows, replacement of exterior windows, and glass replacements 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 the work must start and be completed within the specified construction period.

Maximum Subsidy Amount

The maximum subsidy is 2 million yen per household. Even if multiple windows are renovated, the total subsidy that can be received for the same residence will be up 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 (inner window, outer window, glass), size, and insulation performance category, resulting in a total that is about 50% of the construction costs.

For more details, please click here!

[Ota City] FY 2025 Ota City Housing Renovation Subsidy Program

In Ota City, a program is in place to subsidize part of the construction costs when residents carry out approved renovation work through local small businesses, addressing the quality of housing, a decarbonized society, and a circular economy.

◎ About the FY 2025 Ota City Housing Renovation Subsidy Program
◎ Information on the FY 2025 Ota City Housing Renovation Subsidy Program (PDF)

Skylight Repair and Replacement Price List

This is the warranty and cost for each method of skylight repair!

Renovation and Repair Methods	Warranty	Cost
Skylight Replacement / Cover （Using products from Velux Japan）	Manufacturer’s warranty up to 20 years	Approximately 250,000 yen～ (Varies by method)
Skylight Glass Replacement	Construction warranty 3 years～ (Varies by method)	Approximately 60,000 yen～ (Varies by method)
Skylight Leak Repair (Sealing / Waterproof Tape)	None	Approximately 10,000 yen～ (Varies by method)
Skylight Metal Replacement	Construction Warranty: 3 years and up (Varies by method)	Approximately 60,000 yen and up (Varies by method)
Skylight Removal	Construction Warranty: 3 years and up (Varies by method)	Approximately 60,000 yen and up (Varies by method)

※Costs and warranty periods vary depending on the shape, quantity, condition of the base, whether it is related to roof overlay work or re-roofing work, type of existing roofing material, and type of materials used.
If you would like a detailed estimate, please feel free to contact us!
Estimates are completely free of charge.

Customer Feedback

Advantages and Disadvantages of Skylights

Advantages of Skylights

High Light Transmission

First, the advantage of skylights is their high light transmission.
When natural light enters the room abundantly, it creates a sense of openness, making you feel more comfortable.

Energy Saving

This is also related to the high light transmission; having natural light allows you to save on electricity bills. Since you will reduce the need to turn on lights during the day, it is conducive to energy saving.

Good Ventilation

By installing a skylight, you can open and close it, which improves ventilation.
Warm air rises, enhancing airflow as well.

High Privacy

In areas where houses are closely packed together, large windows can expose the interior of your home. In such cases, skylights are installed on the roof, ensuring your privacy is maintained.

Disadvantages of Skylights

Risk of Leaks

The biggest concern when installing a skylight is the risk of leaks. Since it involves opening up the roof for installation, there is always some risk of water leakage.

However, with proper installation and regular maintenance, the risk can be minimized significantly.

Regular Maintenance Required

Skylights need maintenance every 5 to 10 years to prevent leaks. While maintenance may seem bothersome, it is recommended to perform it regularly to avoid damage to the interior and wooden structures caused by leaks.

Noise from Rain

Since skylights are installed directly on the roof, the sound of raindrops hitting the glass can easily be transmitted indoors. This can be particularly noticeable during heavy rain or storms.

However, this is not strongly felt with all skylights. By choosing double-glazed glass or products with high sound insulation, the sound of rain can be reduced.

Examples of Skylight Repair Work

Construction Details

Skylight Glass Replacement Work

New Materials Used

Double Glazing

Price Range

50,000 – 100,000 yen

Construction Period

1 day

Background to the Construction

Due to cracks in the skylight glass, we received a request to replace the skylight glass along with the roof overlay work.

Skylight Glass Replacement Work – Construction Procedure

1. Remove the surrounding materials of the skylight

First, we will remove the cover materials and securing materials around the skylight. These materials will be reused, so we will take them off carefully.

2. Protection

We will protect the area around the skylight indoors.
This is to ensure that no debris falls inside.

3. Removal of Existing Glass

Next, after removing the cover materials, we will take out the existing glass.

4. Installation of New Glass

Once the existing glass is removed, we will install the new glass. We will be careful to ensure that the glass does not break during installation, just as we were during removal.

5. Waterproofing Treatment

When replacing the skylight glass, waterproofing treatment may be necessary.
We will perform waterproofing around the glass using butyl tape and other materials.

6. Restoration of Materials and Sealing

We will reattach the covers and fasteners that held the glass in place.
It is important to confirm that the fasteners are securely in place, as using an inappropriate installation method for the skylight could lead to leaks.
We will perform waterproofing treatment around the frame with sealing materials.

How to Choose a Skylight Contractor

There are many skylight contractors in Tokyo, and it can be confusing to decide which one to choose.

Therefore, when requesting skylight replacement work or leak repairs, let’s check the following 5 points.

By checking the above 5 points, you will be able to choose a reliable contractor.

They have extensive experience in skylight work

Skylight contractors often have websites where they showcase their past projects.

Additionally, if they provide detailed explanations of repair work with photos, it can give you peace of mind as a reference when you request repairs.

If you are concerned about whether the contractor you are about to hire will respond well, choose one with extensive repair experience.

It is also effective to look at reviews of skylight contractors on Google and review sites!
If there are many negative reviews or no reviews at all, it may be wise to refrain from hiring them.

Kakeru Koumuten Co., Ltd. specializes in exterior work, so we receive many requests for skylight replacement work.

Confirm if they can also handle roofing work

Since skylights are installed on roofs, roofing work is often involved as well.
If a contractor lacks knowledge about roofs or cannot handle roofing work, it could lead to leaks after installation or result in high construction costs, leading to potential troubles.

Moreover, since skylight replacement or removal may require partial dismantling of the roof and restoration, performing roof overlay work or re-roofing at the same time can significantly reduce costs!

Our company specializes in roofing work, so we can propose the optimal plan for roofing work associated with skylight installation tailored to our customers’ needs.

Check for warranties and aftercare services

When choosing a skylight contractor, let’s confirm the availability of warranties.

If a leak occurs after the skylight installation, having a leak warranty from the contractor ensures that repairs can be made at no cost, providing peace of mind!
Additionally, a company that offers a warranty is a sign of confidence in their work, which can serve as a criterion for selecting a contractor!

The warranty period varies by contractor and the nature of the work, but it typically ranges from 1 to 10 years.
Emergency repairs or partial fixes often do not come with a leak warranty.

Moreover, some contractors offer aftercare services in addition to warranties, so be sure to check if the contractor you are considering has warranties and aftercare services.

Kakeru Koumuten Co., Ltd. sends out annual DM for aftercare maintenance, allowing for yearly inspections.
We provide simple repairs, such as partial sealing, at no charge.

Warranty and Payment翔工務店の屋根工事、外壁塗装工事、シーリング工事の保証など簡単にご説明させて頂いております！！ 弊社では前金、中間金は頂いておりません！！...

Obtain estimates from multiple contractors (at least 3)

When requesting skylight work, be sure to get estimates from multiple contractors.

Even for the same repair or replacement work, the costs may vary between contractors, as well as the warranties and aftercare services offered.

Additionally, obtaining multiple estimates makes it easier to negotiate prices.

To request your desired repair contractor at a lower price, it is essential to obtain estimates from multiple contractors.

When comparing estimates, consider not just the costs, but also
“Items in the estimate”
“Materials and quality of glass”
“Verification of processes”
and make a detailed comparison! If the quality of auxiliary materials is low or if processes are skipped, costs can be reduced, so avoid making decisions based solely on price!

【横浜市】屋根リフォームの相見積もりの重要性と比較するポイントを解説します！こんにちは！株式会社翔工務店です！ 横浜市の屋根リフォーム専門店の翔工務店です！こちらのページでは屋根リフォームの見積りをとる...

Confirm whether the work is done in-house

There are various construction methods for skylight repair plans, including full replacement, roof overlay (cover method), and partial repairs!
The plan details will vary depending on the actual state of deterioration and the customer’s preferences.

If you choose a contractor that completely outsources skylight repair work, they may lack knowledge and experience, leading to proposals for repairs in the wrong areas or unnecessary work.
There are cases where customers who want to keep costs down are suggested costly projects like skylight replacement, even though partial repairs would suffice.

Additionally, since the contractor needs to investigate and then request a subcontractor, both time and costs will increase.
By having the knowledge and experience to perform the work in-house, we can provide responsible construction while keeping costs down.

Moreover, with contractors that outsource work, one of the drawbacks is that their response to emergencies, such as post-construction issues, tends to be slow.

If you are looking for a skylight replacement contractor in Ota-ku, Tokyo, please contact Kakeru Koumuten Co., Ltd.

Our company handles many roofing and exterior painting projects in Ota-ku, Tokyo. We are happy to assist with skylight replacements, roof overlays, roof re-roofing, exterior painting, exterior cladding, and partial roof repairs, as well as other repairs!

In urgent cases like water leakage repairs, we may also be able to provide emergency measures without scaffolding, so please feel free to consult with us!

“I want it to last long with one renovation”, “I want to keep costs as low as possible”, “I want to improve insulation because the indoors are hot”, we will provide the best solutions to your specific requests.

We carry out everything from temporary scaffolding work to roofing and exterior painting entirely in-house.
We are confident that our costs, quality, and organization for exterior work are unmatched compared to other companies!
We welcome competitive estimates with confidence!

Exterior Renovation Service Areas

Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and all of Tokyo.

We welcome inquiries via LINE◎

For roofing, guttering, and exterior work and repairs in Kanagawa, contact Kakerukoumuten Co., Ltd..

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!