目次
- 1 If you are looking for skylight contractors in Kakeru Koumuten
- 2 Reasons why Kakeru Koumuten is chosen for skylight work in Machida City, Tokyo
- 3 Subsidies and Grants Available for Skylight Construction in Machida City, Tokyo
- 4 Skylight Repair and Replacement Price List
- 5 Customer Feedback
- 6 Advantages and Disadvantages of Skylights
- 7 Examples of Skylight Repair Work
- 8 Skylight Glass Replacement Work – Construction Procedure
- 9 How to Choose a Skylight Contractor
- 10 If you are looking for a skylight replacement contractor in Machida City, Tokyo, please contact Kakeru Koumuten Co., Ltd.
If you are looking for
skylight contractors in
Kakeru Koumuten
Kakeru Koumuten is an exterior renovation company that performs
complete in-house construction from temporary site setup to roofing and skylight work.
We have received numerous requests for skylight repairs and replacements in Machida City, Tokyo.
We will promptly respond to urgent skylight repairs, such as leaks from skylights (top lights),
and provide emergency measures as needed.
“About subsidies available for skylight work in Machida City, Tokyo”
“About the costs of skylight repairs and replacements”
“Reasons why Kakeru Koumuten is chosen in Machida City, Tokyo”
and more
If you live in Machida City, Tokyo and are considering a skylight replacement,
this information will definitely be helpful, so please take a look!
To conclude, the most important thing to consider when planning skylight work is
“multiple estimates”!
Let’s get at least three estimates from skylight repair contractors covering Machida City, Tokyo!
Reasons why Kakeru Koumuten is chosen for skylight work in Machida City, Tokyo

One reason why we are entrusted with skylight repairs in Machida City, Tokyo is that
“being a roofing company in Tokyo” is one factor, but
“our unique approach to skylight replacement work that cannot be imitated by other companies”
has received high praise from many customers.
“cost, quality, and plans” are our absolute strengths,
1. Facilities Specialized in Exterior Renovation
Kakeru Koumuten Co., Ltd. has prepared the following warehouses and material storage areas to provide low-cost, high-quality exterior renovations such as skylight installation.
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 skylight installation, 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 Warehouse
We store materials used for exterior renovations.
By ordering a large quantity of materials at once, we canprocure materials at a lower cost!
Additionally, we always have stock available, allowing us torespond 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, by separating and recycling the waste materials, we can significantly cut down on waste disposal costs.
Exterior Renovation Dedicated Showroom
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 heat insulation properties using a heat 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 inquiries to project completion, everything is handled by Kakeru Koumuten in a consistent manner, allowing us to keep costs down while providing high-quality skylight installations.
Additionally, one representative will handle everything from the estimate to project completion.
Since the person in charge does not change, whether it’s sales or construction management, smooth communication is possible.
We can fully handle everything from temporary scaffolding setup to exterior painting, roofing, and exterior cover work with our in-house construction!
Since skylight installation involves dismantling or removing roofing materials, it can be significantly cost-effective to carry out this work simultaneously with roof 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 qualified professionals such as national 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 for factories and other facilities!
We have qualified asbestos supervisors and asbestos surveyors on staff, allowing us to 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 places, 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 provide skill enhancement education so that each staff member can respond effectively.
Subsidies and Grants Available for Skylight Construction in Machida City, Tokyo
In Machida City, Tokyo, there are potential subsidies available when conducting skylight construction!
For details, please contact our company or your local municipality!
Child-Rearing Green Housing Support Project
Eligible Applicants
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 exceeding 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 construction, the maximum subsidy per unit ranges from 400,000 yen to 1,600,000 yen depending on the performance classification of the home, while for renovations, the maximum subsidy per unit ranges from 400,000 yen to 600,000 yen depending on the content of the work. 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 content of the work and performance classification. Therefore, in effect, the government bears part of the construction cost.
For more details, please see here!
Advanced Window Renovation Project
Eligible Applicants
Owners of existing homes (single-family homes and apartment buildings) who are conducting insulation renovation work on windows and openings are eligible. The actual application process for subsidies 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 the installation of interior windows, replacement of exterior windows, and glass replacements aimed at improving insulation performance 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 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 (inner window, outer window, glass), size, and insulation performance category, resulting in a total that is approximately 50% of the construction costs.
For more details, please click here!
Skylight Repair and Replacement Price List
This is the warranty and cost for each method of skylight repair!
| Renovation & 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 Guarantee: 3 years and up (Varies by method) |
Approximately 60,000 yen and up (Varies by method) |
| Skylight Removal | Construction Guarantee: 3 years and up (Varies by method) |
Approximately 60,000 yen and up (Varies by method) |
※Costs and guarantee periods vary depending on the shape, quantity, condition of the base, whether it is related to roof overlay work or complete replacement 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.
For details on the costs of Kakeru Koumuten’s skylight repair and replacement plans, click here!
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 it feel pleasant.
Energy Savings

This relates to the high light transmission, as the presence of natural light allows for savings on electricity bills. Since the need to turn on lights during the day decreases, it is conducive to energy savings.
Good Ventilation

By installing a skylight, it can be opened and closed, improving ventilation.
Warm air rises, enhancing airflow as well.
High Privacy

In areas where houses are closely built, large windows can expose the interior of the home. In such cases, skylights are installed on the roof, ensuring 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 inevitably 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 troublesome, 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 is 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 |
| Cracks had developed in the skylight glass, so 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.
We will take measures to prevent debris from falling indoors.
3. Removal of Existing Glass
Next, after removing the cover materials, we will take out the existing glass.
4. Installation of New Glass
After removing the existing glass, we will install the new glass. We will carefully install it to ensure that it does not break, just as we did 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 ensure that the installation method matches the type of skylight being used, as improper installation can lead to leaks. We will check that the fittings are securely fastened.
Waterproofing treatment will be performed around the frame with sealing.
How to Choose a Skylight Contractor
There are many skylight contractors in Machida City, and you may be unsure which one to choose.
Therefore, when requesting skylight replacement work or leak repairs, please check the following 5 points.
● Have extensive experience in skylight work
● Confirm whether they can also handle roofing work
● Check for warranties and aftercare services
● Obtain estimates from multiple contractors (at least 3)
● Confirm whether they perform roof renovations in-house
By confirming the above 5 points, you will be able to choose a reliable contractor.
Have Extensive Experience in Skylight Work
Skylight contractors often have websites that showcase their work experience.
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 considering will respond adequately, choose one with extensive repair experience.
It is also effective to refer to reviews on Google and review sites when looking for skylight contractors!
If there are many negative reviews or no reviews at all, it may be wise to refrain from requesting their services.
Kakeru Koumuten Co., Ltd. specializes in exterior work, so we receive many requests for skylight replacement work.
Confirm Whether They Can Handle Roofing Work
Since skylights are installed on roofs, roofing work is often involved.
If the contractor lacks knowledge about roofs or cannot handle roofing work, it may lead to leaks after installation or high construction costs, resulting in potential troubles.
Furthermore, since skylight replacement or removal may require partial dismantling of the roof and restoration, performing roof overlay work or re-roofing simultaneously can significantly reduce costs!
Our company specializes in roofing work, so we can propose the optimal plan tailored to your needs for roofing work associated with skylight installation.
Check for warranties and after-sales maintenance
When choosing a skylight contractor, let’s confirm the presence of a warranty.
If a leak occurs after the skylight installation, having a leak warranty from the contractor ensures that repairs can be done free of charge, providing peace of mind!
Additionally, companies that offer a warranty are often confident in their work, which can serve as a criterion for selecting a contractor!
The warranty period varies by contractor and the scope of 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 after-sales services separate from warranties, so be sure to check if the contractor you are considering has warranties andafter-sales services.
Kakeru Koumuten Co., Ltd. sends out annual DM for after-sales maintenance, allowing for yearly inspections.
We also provide free support for simple repairs such as partial sealing.
Obtain estimates from multiple contractors (at least 3 companies)
When requesting skylight installation, let’s obtain estimates from multiple contractors.
Even for the same repair or replacement work, the repair costs and warranties or after-sales services may differ 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, consider not only the cost but also
“Items in the estimate”
“Materials and quality of glass, etc.”
“Confirmation of the process”
and make a detailed comparison! If the rank of auxiliary materials is low or if processes are skipped, costs can be reduced, so avoid making decisions based solely on price!
Check if 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 wishes.
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 to replace the skylight, which incurs higher costs, even though partial repairs would suffice.
Additionally, since the contractor will investigate and then request a subcontractor, both time and costs will increase unnecessarily.
By having the knowledge and experience to carry out the work in-house, we can provide responsible construction while keeping costs down.
Moreover, with contractors that outsource work, one of the disadvantages is that their response to emergencies or troubles after construction tends to be slow.
If you are looking for a skylight replacement contractor in Machida City, Tokyo, please contact Kakeru Koumuten Co., Ltd.
Our company handles many roofing and exterior painting projects in Machida City, Tokyo. We are happy to assist with skylight replacements, roof overlays, roof replacements, exterior painting, exterior cladding, leak repairs, and other partial roof repairs!
In urgent cases such as leak repairs, we may also be able to provide emergency measures without scaffolding, so please feel free to consult with us!
For specific requests like “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.
We carry out everything from temporary scaffolding construction to roofing and exterior painting entirely in-house.
We are confident that we will not be outdone in terms of cost, quality, and organization compared to other companies for exterior work!
We welcome competitive estimates with confidence!
Exterior Renovation Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and all of Tokyo.
Machida City, Tokyo Area List
Aihara-cho, Machida City / Asahicho, Machida City / Okuracho, Machida City / Ogawa, Machida City / Onoricho, Machida City / Koyamaguchi, Machida City / Koyamada Sakuradai, Machida City / Koyama-cho, Machida City / Kanai, Machida City / Kanai-ga-oka, Machida City / Kanai-cho, Machida City / Kanamori, Machida City / Kanamori Higashi, Machida City / Kamikoyamada-cho, Machida City / Kiso Nishi, Machida City / Kiso Higashi, Machida City / Kiso-cho, Machida City / Takagasaka-cho, Machida City / Shimokoyamada-cho, Machida City / Makoji, Machida City / Makoji-cho, Machida City / Zushi-cho, Machida City / Chusei, Machida City / Tamagawa Gakuen, Machida City / Tsukushino, Machida City / Tsurukawa, Machida City / Tsuruma, Machida City / Tokiwacho, Machida City / Nakacho, Machida City / Naruse, Machida City / Narusegaoka, Machida City / Narusedai, Machida City / Nishinaruse, Machida City / Negishi, Machida City / Negishi-cho, Machida City / Nogaya, Machida City / Nodzuta-cho, Machida City / Haramachida, Machida City / Higashi Tamagawa Gakuen, Machida City / Hirohakamada, Machida City / Hirohakamada-cho, Machida City / Fujinodai, Machida City / Honmachida, Machida City / Minami Otani, Machida City / Minami Tsukushino, Machida City / Minami Naruse, Machida City / Minami Machida, Machida City / Miwa-cho, Machida City / Miwa Midoriyama, Machida City / Morino, Machida City / Yakushidai, Machida City / Yabemachi, Machida City / Yamazaki, Machida City / Yamazaki-cho
・Trust Kakeru Koumuten for exterior wall painting in Machida, Tokyo!
・Trust Kakeru Koumuten for roof renovations in Machida, Tokyo!
・Trust Kakeru Koumuten for exterior renovations in Machida, Tokyo!
・Kakeru Koumuten Co., Ltd. project achievements
・Kakeru Koumuten Co., Ltd. aftercare services
・Kakeru Koumuten Co., Ltd. service menu and price list
・Kakeru Koumuten Co., Ltd. staff blog and announcements
・We explain the importance of getting multiple estimates and points to compare!
・Trust Kakeru Koumuten for leak repairs in Machida, Tokyo!
We welcome inquiries via LINE◎
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!




