If you are looking for a
skylight contractor in
Kakeru Koumuten

Kakeru Koumuten is an exterior renovation company that performs
complete in-house construction from temporary scaffolding setup to roof work and skylight installation.
We have received numerous requests for skylight repairs and replacements in Aoba-ku, Yokohama.
We respond quickly to urgent skylight repairs, such as leaks from skylights (top lights), and provide emergency measures.

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

If you live in Aoba-ku, Yokohama and are considering a skylight replacement,
this information will definitely be helpful, so please take a look!

To conclude, the most important thing when considering skylight work is
“multiple estimates”!
Let’s obtain estimates from at least three skylight repair contractors that cover Aoba-ku, Yokohama!

Reasons why Kakeru Koumuten is chosen for skylight work in Aoba-ku, Yokohama

The reasons why we can be entrusted with skylight repairs in Aoba-ku, Yokohama
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.

In skylight replacement work in Aoba-ku, Yokohama,
“cost, quality, and plan” are our absolute strengths,

and we would be grateful if you could compare them with estimates from other companies.

We are confident, so we welcome price comparisons.

1. Equipment Specialized in Exterior Renovation

Kakeru Koumuten Co., Ltd. has prepared the following warehouses and material storage areas to provide low-cost and high-quality exterior renovations such as skylight construction.
We have established 5 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 construction, allowing us to set up scaffolding in-house.
By conducting 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 Sorting

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

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. Skylight installation available with complete in-house construction

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 same person will manage sales and construction, smooth communication is possible.

We can handle everything from temporary scaffolding installation 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 roof replacement or cover work!

3. Various permits obtained and skilled workers on staff

We have obtained permits for the construction industry and for the collection and transportation of industrial waste!
We have national certified sheet metal workers and painting technicians on staff, 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 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 sites require various processing techniques and skills, we regularly provide skill enhancement education to ensure all staff can respond effectively.

Possible subsidies and grants for skylight construction in Komae City, Tokyo

In Komae City, 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 is the eligible party.

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 construction, the maximum subsidy per unit ranges from 400,000 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 to 600,000 yen depending on the work content. In either case, even if multiple works are carried out, the total subsidy cannot exceed these maximum amounts.

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 classification. 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 registered “window renovation contractors” with the government, and the granted subsidy is fully refunded to the homeowners through discounts on construction costs.

Requirements

The eligible renovations include insulation performance improvement work such as installing interior windows, replacing exterior windows, and glass replacement 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 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!

Here is the official website of Komae City

Skylight Repair and Replacement Price List

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

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 substrate, whether it is a roof overlay or 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.

もっと詳しく！

For information 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, which I believe makes you feel good.

Energy Savings

This also contributes to high light transmission, as the presence of natural light allows you to save on electricity costs. Since you will reduce the need to turn on lights during the day, it is suitable for energy conservation.

Good Ventilation

By installing a skylight, you can open and close it, which improves ventilation.
Warm air flows upward, enhancing airflow.

High Privacy

In areas where houses are closely packed together, installing large windows can make the inside of your home visible. However, with skylights, since they are installed on the roof, your privacy is maintained.

Disadvantages of Skylights

Risk of Leaks

The biggest concern when installing a skylight is the risk of leaks. After all, since it involves opening the roof for installation, there is some risk of leaks.

However, with proper installation and regular maintenance of modern skylights, this 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 do it regularly to avoid damage to interiors and wooden parts caused by leaks.

Noise from Rain

Since skylights are installed directly on the roof, the sound of raindrops hitting the glass surface can easily be transmitted indoors, which is a disadvantage. In particular, the sound may be quite noticeable during heavy rain or typhoons.

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

Examples of Skylight Repair Work

BEFORE

AFTER

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 carefully install it to avoid breaking, 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 could lead to leaks.
We will perform waterproofing treatment around the frame with sealing.

How to Choose a Skylight Contractor

There are many skylight contractors in Komae City, and you may be unsure which one to choose.

Therefore, when requesting skylight replacement work or leak repairs, it is important to check the following 5 points.

● They have extensive experience in skylight work

● Confirm if they can also handle roofing work

● Check for warranties and aftercare services

● Obtain estimates from multiple contractors (at least 3)

● Confirm if they perform roof renovations in-house

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 showcasing their work experience.

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

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

It is also effective to look at reviews of skylight contractors on Google and review sites for reference!
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, and we receive many requests for skylight replacement work.

Confirm if they can handle roofing work

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

Moreover, since skylight replacement or removal may require partial dismantling of the roof and restoration, performing roof overlay work or re-roofing together 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 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 done free of charge, providing peace of mind!
Additionally, a company that offers a warranty is a sign of confidence in their work, making it a criterion for selecting a contractor!

The warranty period varies by contractor and the nature of the work, but it is generally set between 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 andaftercare services.

Kakeru Koumuten Co., Ltd. sends out annual DM for aftercare maintenance, allowing for yearly inspections.
For simple repairs like partial sealing, we provide services free of charge.

About Kakeru Koumuten Co., Ltd. Warranty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, make sure to obtain estimates from multiple contractors.

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

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 just the costs, but also
“Items in the estimate”
“Materials and quality of glass”
“Confirmation of the process”
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!

The Importance of Comparing Estimates for Roof Renovation in Yokohama and Key Points to Consider!Hello! This is Kakeru Koumuten Co., Ltd.! We are Kakeru Koumute...

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 costly projects like skylight replacement, even though partial repairs would suffice.

Additionally, since they investigate and then request subcontractors, both time and costs can increase unnecessarily.
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 completely, one of the disadvantages is that response times for emergencies or post-construction issues can be delayed.

If you are looking for a skylight replacement contractor in Komae City, Tokyo, please contact Kakeru Koumuten Co., Ltd.

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

In urgent cases like leak repairs or when emergency measures can be taken without scaffolding, please feel free to consult us!

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

We carry out everything from temporary scaffolding work to roofing and exterior painting completely in-house.
We are confident that we excel in cost, quality, and organization compared to other companies in exterior construction!
We welcome competitive estimates with confidence!

Exterior Renovation Service Areas

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

Komae City, Tokyo Area List

Izumi Honcho, Komae City / Inokata, Komae City / Iwato Minami, Komae City / Iwato Kita, Komae City / Komai Cho, Komae City / Naka Izumi, Komae City / Nishi Izumi, Komae City / Nishi Nogawa, Komae City / Higashi Izumi, Komae City / Higashi Nogawa, Komae City / Moto Izumi, Komae City