目次
- 1 If you are looking for skylight contractors in Chigasaki City please contact Kakeru Koumuten
- 2 Reasons why Kakeru Koumuten is chosen for skylight work in Chigasaki City
- 3 Subsidies and Grants That May Apply to Skylight Construction in Chigasaki City
- 4 Skylight Repair and Replacement Price List
- 5 Customer Feedback
- 6 Advantages and Disadvantages of Skylights
- 7 Examples of Skylight Repair Work
- 8 Skylight Replacement Work – Construction Procedure
- 9 How to Choose a Skylight Contractor
- 10 If you are looking for a skylight replacement contractor in Chigasaki City, please contact Kakeru Koumuten Co., Ltd.
If you are looking for
skylight contractors in Chigasaki City
please contact Kakeru Koumuten
Kakeru Koumuten is an exterior renovation company that performs
everything from temporary scaffolding installation to
roof work and skylight installation with complete in-house construction.
We receive numerous requests for skylight repairs and replacements in Chigasaki City.
We will promptly respond to urgent skylight repairs, such as leaks from skylights (top lights),
and provide emergency measures.
“About subsidies available for skylight work in Chigasaki City”
“About the costs of skylight repairs and replacements”
“Reasons why Kakeru Koumuten is chosen in Chigasaki City”
If you live in Chigasaki City 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 at least three estimates from skylight repair contractors
that serve Chigasaki City!
Reasons why Kakeru Koumuten is chosen for skylight work in Chigasaki City

The reasons why we can be entrusted with skylight repairs in Chigasaki City
include the fact that “Kakeru Koumuten is a roofing company in Kanagawa Prefecture,”
but also our “unique approach to skylight replacement work that cannot be imitated by other companies”
, which has received high praise from many customers.
“cost, quality, and plans” are our absolute strengths,
1. Equipment 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 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 houses!
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 waste materials, we can significantly cut 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 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 the sales representative or the construction management representative, smooth communication is possible.
We can fully 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 peeling off 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 construction industry licenses and permits for industrial waste collection and transportation!
We have nationally certified sheet metal workers and painting specialists 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 measures for sudden leaks from skylights!
6. Human Resource Development
To improve our skills, we create various roof models and conduct practical training.
Since different processing and techniques are required depending on the site, we regularly provide skill enhancement education to ensure that all staff can respond effectively.
Subsidies and Grants That May Apply to Skylight Construction in Chigasaki City
In Chigasaki City, there are potential subsidies available when performing skylight construction!
For details, please contact our company or your local government!
Kanagawa Prefecture Existing Housing Energy Efficiency Renovation Subsidy
Eligible Applicants
The eligible applicants for this subsidy are owners of existing homes located in Kanagawa Prefecture who reside in those homes on a daily basis. The eligible homes must be residences where the owner themselves lives, regardless of whether they are single-family homes or apartments.
Eligible Construction and Conditions
To receive the subsidy, the following requirements must be met. First, the renovation work must target existing homes in the prefecture and use products such as windows, glass, and insulation materials that meet the insulation performance standards specified by the national government for energy-efficient renovations. Additionally, the home must ensure seismic performance, and a preliminary application must be submitted before starting the construction, with work commencing only after receiving a grant decision. Eligible construction includes insulation renovations for windows, floors, walls, and ceilings.
Subsidy Amount
The maximum amount for this subsidy is up to 200,000 yen per residence. This is the total subsidy provided when eligible energy-efficient renovation work is carried out, and no more than this amount can be received.
Subsidy Rate
The burden ratio for the subsidy is **one-third (approximately 33%) of the eligible construction costs**. However, even if the calculated amount based on the subsidy rate exceeds the maximum limit of 200,000 yen, the amount granted will be “up to the maximum limit”.
For more details, please click here!
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 homes with high energy efficiency performance, or for energy-efficient renovations of existing homes. In the case of 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 performance standards set by the national government, such as ZEH standards or higher. For renovations, it is required to carry out work that improves the energy efficiency performance of the home, such as insulation renovations or the introduction of energy-efficient equipment. In both cases, it is necessary to contract with a registered business and carry out the work within the specified period.
Subsidy Upper Limit
For new constructions, the maximum subsidy per unit is between 400,000 yen and 1,600,000 yen depending on the performance category of the house. For renovations, the maximum subsidy per unit is between 400,000 yen and 600,000 yen, depending on the nature of the work. In either case, even if multiple works are carried out, the subsidy cannot exceed this upper limit.
Subsidy Rate
This program does not provide a subsidy based on a certain percentage of construction costs; instead, it offers a predetermined “fixed subsidy” based on the type of work and performance category. Therefore, in effect, the government covers part of the construction costs.
For more details, please click here!
Advanced Window Renovation Project
Eligible Participants
Owners of existing homes (single-family homes and apartment buildings) who are conducting 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 returned to the homeowners through discounts on construction costs.
Requirements
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.
Subsidy Upper Limit
The upper limit for subsidies is 2,000,000 yen per unit. Even if multiple windows are renovated, the total subsidy that can be received for the same residence is limited to this upper limit.
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 (interior window, exterior 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!
(工法によりことなります)
(工法により異なります)
(工法により異なります)
(Varies by method)
(Varies by method)
(Varies by method)
(Varies by method)
※Costs and warranty periods vary depending on the shape, quantity, condition of the substrate, 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.
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, making you feel more comfortable.
Energy Savings
This also contributes to high light transmission, allowing you to save on electricity costs due to the presence of natural light. Since you will need to turn on the lights less 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 rises, enhancing airflow as well.
High Privacy
In areas where houses are closely packed together, large windows can expose the interior of your home. 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. Since it involves opening up the roof, 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 troublesome, it is recommended to do it regularly to avoid damage to the interior and wooden parts 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 the case for all skylights. Choosing double-glazed glass or products with high sound insulation can reduce the noise of rain.
Examples of Skylight Repair Work
| Construction Details |
| Skylight Replacement Work |
| New Materials Used |
| Japan Velux/FCM Fixed Type |
| Price Range |
| 400,000〜500,000 |
| Construction Period |
| 1 Day |
| Background to the Construction |
| The skylight glass was broken, so we received a request for its replacement. Along with the skylight replacement, we also replaced the surrounding roofing materials. |
Skylight Replacement Work – Construction Procedure
1. Preparation
2. Demolition of Skylight and Surrounding Roofing Materials
3. Wooden Framework
4. Installation of Waterproof Sheet Around Skylight
This is an important task to prevent leaks.
5. Metal Work Around Skylight and Installation of New Roofing Materials
If the skylight is not properly sealed, there is a high risk of leaks. Therefore, it is essential to proceed with caution.
6. Installation of New Skylight
By properly performing rainwater management and conducting regular maintenance, you can prevent leaks.
7. Cleaning
This will mark the completion of the project.
How to Choose a Skylight Contractor
In Chigasaki City, there are many skylight contractors, 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:
● Have extensive experience in skylight construction
● Confirm if they can also handle roof work
● Check for warranties and aftercare services
● Obtain estimates from multiple contractors (at least 3 companies)
● Confirm if they perform roof renovations in-house
By checking the above 5 points, you will be able to choose a reliable contractor.
Have Extensive Experience in Skylight Construction
Skylight contractors often have websites that showcase their construction achievements.
Additionally, if they provide detailed explanations of repair work with photos, it can give you peace of mind as a reference when you actually request repairs.
If you are concerned about whether the contractor you are about to hire 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 if They Can Handle Roof Work
Since skylights are installed on the roof, roof work is often involved as well.
If the contractor lacks knowledge about roofs or cannot handle roof work, there is a possibility of issues arising, such as leaks after construction or high construction costs.
Moreover, since skylight replacement or removal may require partial roof dismantling 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 after-sales maintenance
When choosing a skylight contractor, make sure to check for warranties.
If a leak occurs after the skylight installation, having a leak warranty from the contractor ensures that repairs can be done at no cost, providing peace of mind!
Additionally, companies that offer warranty periods are often confident in their work, making this a key criterion for selecting a contractor!
Warranty periods vary by contractor and the scope of work, but typically range 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 in addition to warranties, so be sure to check if the contractor you are considering has warranties and after-sales services.
Kakeru Koumuten Co., Ltd. sends out annual direct mail for after-sales maintenance, allowing for yearly inspections.
We also provide free responses for simple repairs such as partial sealing.
Obtain estimates from multiple contractors (at least three)
When requesting skylight work, be sure to obtain estimates from multiple contractors.
Even for the same repair or replacement work, costs and warranty or after-sales services can vary between contractors.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your preferred contractor at the best possible 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!
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 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 may be cases where customers wanting to keep costs down are suggested expensive work like skylight replacement, even though partial repairs would suffice.
Additionally, since they need to 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, one disadvantage of contractors that outsource work is that their response to emergencies, such as post-construction troubles, tends to be delayed.
If you are looking for a skylight replacement contractor in Chigasaki City, please contact Kakeru Koumuten Co., Ltd.
Our company handles many roofing and exterior painting projects in Chigasaki City. We are happy to assist with skylight replacements, roof overlays, roof re-roofing, exterior painting, exterior siding replacement, leak repairs, and other partial roof repairs!
In urgent cases such as leak repairs, we can also provide temporary measures without scaffolding, so 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 down as much as possible”, “I want to improve insulation because the indoors are hot”, we will provide the best solutions.
We carry out everything from temporary scaffolding work to roofing and exterior painting entirely in-house.
We are confident that we will not be outdone in terms of cost, quality, and efficiency compared to other companies in exterior work!
We welcome competitive estimates!
Areas Served for Exterior Renovation
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
List of Areas in Chigasaki City
Chigasaki City Akabane / Chigasaki City Akamatsu-cho / Chigasaki City Asahigaoka / Chigasaki City Amanuma / Chigasaki City Imajuku / Chigasaki City Enzo / Chigasaki City Kagawa / Chigasaki City Kozakura-cho / Chigasaki City Kowada / Chigasaki City Saiwaicho / Chigasaki City Shio-midai / Chigasaki City Shimoterao / Chigasaki City Shimomachiya / Chigasaki City Jukkenzaka / Chigasaki City Matsubayashi / Chigasaki City Shirahama-cho / Chigasaki City Shineicho / Chigasaki City Serizawa / Chigasaki City Daikan-cho / Chigasaki City Takada / Chigasaki City Chigasaki / Chigasaki City Tsutsumi / Chigasaki City Tsuruga-dai / Chigasaki City Deguchi-cho / Chigasaki City Tokiwacho / Chigasaki City Tomoe / Chigasaki City Nakakaigan / Chigasaki City Nakajima / Chigasaki City Yukitani / Chigasaki City Minami-ko / Chigasaki City Nishikubo / Chigasaki City Hagi-noen / Chigasaki City Hama-suka / Chigasaki City Hama-take / Chigasaki City Hama-no-sato / Chigasaki City Hama-mihira / Chigasaki City Higashi-kaigan-minami / Chigasaki City Higashi-kaigan-kita / Chigasaki City Hishinuma / Chigasaki City Hishinuma-kaigan / Chigasaki City Hibari-ga-oka / Chigasaki City Fujimi-cho / Chigasaki City Heita-shin-nen / Chigasaki City Heiwa-cho / Chigasaki City Honjuku-cho / Chigasaki City Honmura / Chigasaki City Matsu-o / Chigasaki City Matsukaze-dai / Chigasaki City Matsugaoka / Chigasaki City Matsunami / Chigasaki City Mizuki / Chigasaki City Misumi-cho / Chigasaki City Midoriga-hama / Chigasaki City Murota / Chigasaki City Motomachi / Chigasaki City Yanagishima / Chigasaki City Yanagishima-kaigan / Chigasaki City Yahata / Chigasaki City Wakamatsu-cho
・Trust Kakeru Koumuten for exterior wall painting in Chigasaki, Kanagawa!
・Trust Kakeru Koumuten for roof renovations in Chigasaki, Kanagawa!
・Trust Kakeru Koumuten for exterior renovations in Chigasaki, Kanagawa!
・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
・Explaining the importance of getting multiple estimates and points to compare!
・Trust Kakeru Koumuten for leak repairs in Chigasaki!
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!





