Leave Skylight Repair and Replacement in Nakahara-ku, Kawasaki to Kakeru Koumuten Co., Ltd.!
If you are looking for
skylight construction contractors in
Kakeru Koumuten
Kakeru Koumuten is a home renovation company that performs
complete in-house construction from temporary scaffolding setup to
roofing and skylight construction.
We have received numerous requests for skylight repairs and replacements in Aoba-ku, Yokohama.
We will promptly respond to urgent skylight repairs, such as leaks from skylights (top lights),
and emergency measures.
“About subsidies available for skylight construction in Aoba-ku”
“About the costs of skylight repairs and replacements”
“Reasons why Kakeru Koumuten is chosen in Aoba-ku”
For customers living in Aoba-ku 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 estimates from at least three companies that handle skylight repairs in Aoba-ku!
Reasons why Kakeru Koumuten is chosen for skylight construction in Aoba-ku

One reason why we are entrusted with skylight repairs in Aoba-ku is that
“Kakeru Koumuten is a roofing company in Kanagawa Prefecture,” but
“Our unique approach to skylight replacement construction that cannot be imitated by other companies”
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 installation.
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 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, you 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, separating and recycling waste materials can lead to significant cost reductions in waste disposal fees.
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 heat insulation testing equipment!
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 same person is in charge, whether it’s sales or construction management, smooth communication is possible.
We can fully handle everything from temporary scaffolding installation to exterior painting, roofing work, and exterior cover work in-house!
Since skylight installation involves dismantling or peeling off roofing materials, it can be significantly more cost-effective when done simultaneously with roof replacement or cover work!
3. Various Permits Obtained & Skilled Workers on Staff
We have obtained construction industry licenses and permits for industrial waste collection and transportation!
We have qualified professionals, including 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, 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 annual notification DM.
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 utilize drones to assist!
During leak investigations, we can also conduct inspections 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 to enhance our skills and conducting practical training.
Since different processing and techniques are required depending on the site, we regularly provide skill enhancement education to ensure that each staff member can respond effectively.
Subsidies and Grants That May Apply to Skylight Construction in Nakahara-ku, Kawasaki
In Nakahara-ku, Kawasaki, 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 must target existing homes in the prefecture and use products with specified insulation performance, such as windows, glass, and insulation materials designated by the national government. Additionally, the home must ensure seismic performance, and a pre-application must be submitted before starting construction, with construction 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 efficiency 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 of 200,000 yen, the amount granted will be limited to “up to the maximum amount.”
For more details, please click here!
Child-Rearing Green Housing Support Project
Eligible Applicants
This program targets child-rearing households (households with children under 18) and young couples, focusing on those who are constructing or purchasing new homes with high energy efficiency performance, or renovating existing homes for energy efficiency. For new constructions, the builder or purchaser is eligible, while for renovations, the contractor placing the order is eligible for the subsidy.
Requirements
For new homes, it is necessary to meet high energy efficiency performance standards set by the government, such as ZEH standards or higher. For renovations, the work must improve the home’s energy efficiency performance through insulation renovations or the introduction of energy-saving equipment. In both cases, it is required to contract with a registered business and complete the work within the specified period.
Subsidy Maximum Amount
For new constructions, the maximum amount per unit is between 400,000 yen and 1,600,000 yen, depending on the performance category of the house. For renovations, the maximum amount per unit is between 400,000 yen and 600,000 yen, depending on the content of the work. In either case, even if multiple works are carried out, the subsidy cannot exceed this maximum amount.
Subsidy Rate
This program does not provide a subsidy based on a certain percentage of the construction costs; instead, it offers a predetermined “fixed subsidy” based on the type of work and performance category. Therefore, in effect, the government bears part of the construction costs.
For more details, please click here!
Advanced Window Renovation Project
Eligible Participants
Owners of existing houses (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 refunded to the homeowners through discounts on construction costs.
Requirements
Eligible works include window renovation projects aimed at improving insulation performance, such as installing interior windows, replacing exterior windows, and replacing glass 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 commence and be completed within the specified construction period.
Subsidy Maximum Amount
The maximum subsidy amount is 2,000,000 yen per unit. Even if multiple windows are renovated, the total subsidy that can be received for the same house 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 (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!
(Using products from Velux Japan)
(Varies by method)
(Varies by method)
(Varies by method)
(Sealing & Waterproof Tape)
(Varies by method)
(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 is also related to the high light transmission, as natural light allows you to save on electricity costs. Since you will reduce the need to turn on lights during the day, it is conducive to energy savings.
Good Ventilation

By installing a skylight, you can open and close it, which improves ventilation.
Warm air rises, enhancing airflow.
High Privacy
In areas where houses are closely packed together, large windows can make the interior 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. Since it involves opening the roof for installation, there is a certain risk of leaks.
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 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 noise can be particularly noticeable during heavy rain or storms.
However, this is not the case for 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
| 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 skylight replacement. Along with the skylight replacement, we also replaced the surrounding roofing materials. |
Skylight Replacement Work – Construction Procedure
1. Preparation
2. Skylight Demolition and Roof Material Removal Around Skylight
3. Wooden Framework
4. Waterproof Sheet Installation Around Skylight
This is an important task to prevent leaks.
5. Metal Work Around Skylight and New Roof Material Installation
If the skylight is not properly sealed, it can lead to leaks. Therefore, it is essential to proceed with caution.
6. Installation of New Skylight
By properly sealing against rain and performing regular maintenance, you can prevent leaks.
7. Cleaning
This concludes the work.
How to Choose a Skylight Contractor
There are many skylight contractors in Kawasaki City, and it can be confusing to decide 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 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 Work
Skylight contractors often have websites where they showcase 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 considering will handle your request properly, 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. is skilled in exterior work, and we receive many requests for skylight replacement work.
Confirm if They Can Handle Roof Work
Since skylights are installed on roofs, 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 such as leaks after installation or high construction costs.
Additionally, 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 after-sales maintenance
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, companies that offer warranty periods can be seen as having confidence in their work, which can serve as a criterion for selecting a contractor!
Warranty periods vary by contractor and the nature of the work, but it is generally set between 1 to 10 years.
Emergency repairs or partial repairs 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 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 work, let’s obtain estimates from multiple contractors.
Even for the same repair or replacement work, repair costs can vary by contractor, as well as warranties and after-sales services.
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 only the cost but also
“Items in the estimate”
“Materials and quality of glass, etc.”
“Confirmation of the process”
and make a detailed comparison! Avoid making decisions based solely on cost, as lower-quality materials or skipping processes can reduce costs!
Check if the contractor performs the work 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 when partial repairs would suffice.
Additionally, since the contractor needs to investigate and then request a subcontractor, both time and costs will increase.
By having knowledge and experience and performing 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 response times during emergencies, such as post-construction troubles, can be significantly delayed.
If you are looking for a skylight replacement contractor in Nakahara-ku, Kawasaki, please contact Kakeru Koumuten Co., Ltd.
Our company handles many roofing and exterior painting projects in Nakahara-ku, Kawasaki. 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 leak repairs, we can also provide emergency measures without scaffolding, so please feel free to consult us!
Whether you want to “make it last with one renovation”, “keep costs as low as possible”, or “improve insulation because the indoors are hot”, we will provide the best solutions for your specific requests.
We perform everything from temporary scaffolding work to roofing and exterior painting completely in-house.
We are confident that our costs, quality, and efficiency in 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 Tokyo.
List of Areas in Nakahara-ku, Kawasaki
Ida Sanbai-cho, Nakahara-ku / Ida Sugiyama-cho, Nakahara-ku / Ida Nakano-cho, Nakahara-ku / Ida, Nakahara-ku / Ichinotsubo, Nakahara-ku / Imai Uemachi, Nakahara-ku / Imai Nakacho, Nakahara-ku / Imai Nishimachi, Nakahara-ku / Imai Minamimachi, Nakahara-ku / Okura-cho, Nakahara-ku / Kamikodaka, Nakahara-ku / Kamishinjo, Nakahara-ku / Kamihirama, Nakahara-ku / Kamimaruko, Nakahara-ku / Kamimaruko Sannou-cho, Nakahara-ku / Kamimaruko Tenjin-cho, Nakahara-ku / Kamimaruko Hachiman-cho, Nakahara-ku / Karishuku, Nakahara-ku / Kitadani-cho, Nakahara-ku / Kizuki Ise-cho, Nakahara-ku / Kizuki Omachi, Nakahara-ku / Kizuki Gion-cho, Nakahara-ku / Kizuki Sumiyoshi-cho, Nakahara-ku / Kizuki, Nakahara-ku / Kosugi, Nakahara-ku / Kosugi Goten-cho, Nakahara-ku / Kosugi Jinya-cho, Nakahara-ku / Kosugi-cho, Nakahara-ku / Shimokodaka, Nakahara-ku / Shimoshinjo, Nakahara-ku / Shimonumabe, Nakahara-ku / Shinjo, Nakahara-ku / Shinjo Nakacho, Nakahara-ku / Shinmaruko Higashi, Nakahara-ku / Shinmaruko-cho, Nakahara-ku / Tajiri-cho, Nakahara-ku / Todoroki, Nakahara-ku / Nakamaruko, Nakahara-ku / Nishikase, Nakahara-ku / Maruko-dori, Nakahara-ku / Miyauchi, Nakahara-ku
・Leave your exterior renovations in Aoba-ku, Kawasaki to Kakeru Koumuten Co., Ltd.!
・Trust Kakeru Koumuten Co., Ltd. for your roof renovations in Aoba-ku, Kawasaki!
・Count on Kakeru Koumuten Co., Ltd. for exterior wall painting in Aoba-ku, Kawasaki!
・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 key comparison points!
・Leave your leak repairs in Aoba-ku, Kawasaki to Kakeru Koumuten Co., Ltd.!
Consultations via LINE are also very welcome◎
株式会社翔工務店へ
株式会社翔工務店は平均年齢20代後半の若い会社ですが、技術はどこにも負けていません。
いちばんの強みは、足場工事、屋根工事、塗装工事とすべて自社で行えること。一般には分業されるこの業界にあって、一式で頼めるので管理に手間がかからず、コストも抑えることが出来ます。何より、トラブルがあればすぐにかけつけます!
自信をもって、宣言できます。私たちは、神奈川で一番若くて親切なリフォーム屋です!





