Leave Skylight Repair and Replacement in Hodogaya-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
If you are looking for a
skylight contractor in
Kakeru Koumuten
Kakeru Koumuten is a home 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 as needed.
“About subsidies available for skylight work in Aoba-ku”
“About the costs of skylight repairs and replacements”
“Reasons why Kakeru Koumuten is chosen in Aoba-ku”
If you live in Aoba-ku 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
“getting 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 work in Aoba-ku, Yokohama

One reason why we are entrusted with skylight repairs in Aoba-ku
is that “Kakeru Koumuten is a roofing company in Yokohama,” but also
“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. 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 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 assemble 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 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 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 completely in-house!
Since skylight installation involves dismantling or removing roofing materials, doing it simultaneously with roof replacement or cover work can significantly reduce costs!
3. Obtaining various permits and having skilled workers
We have obtained construction industry licenses and permits for industrial waste collection and transportation!
We have nationally 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 measures 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 conduct skill improvement training to ensure that all staff can respond effectively.
Subsidies and Grants That May Be Available for Skylight Construction in Aoba-ku, Yokohama
In Aoba-ku, Yokohama, there are potential subsidies available when carrying out 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 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, it is necessary to carry out energy efficiency renovation work using products such as windows, glass, and insulation materials that meet the insulation performance standards specified by the national government, targeting existing homes in the prefecture. Additionally, the home must ensure seismic performance, and a pre-application must be submitted before starting the construction, with the condition that construction begins 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 amount of 200,000 yen, the amount granted will be “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 new construction or purchase of homes with high energy efficiency performance, as well as energy-efficient renovations of existing homes. For new construction, the builder or purchaser is eligible, while for renovations, the contractor is the eligible applicant.
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 carry out the work within the specified period.
Subsidy Upper Limit
For new constructions, the maximum subsidy per unit ranges from 400,000 yen to 1,600,000 yen depending on the performance classification of the housing. For renovations, the upper limit is 400,000 yen to 600,000 yen per unit, depending on the content 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 the construction costs; instead, it offers a predetermined “fixed subsidy” based on the content of the work and performance classification. Therefore, in effect, the government covers part of the construction costs.
For more details, please click here!
Advanced Window Renovation Project
Eligible Participants
Homeowners of existing residential properties (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” recognized by the government, and the granted subsidies are fully refunded to homeowners through discounts on construction costs.
Requirements
Eligible works include window renovation projects aimed at improving insulation performance, such as the installation of interior windows, replacement of 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.
Subsidy Upper Limit
The upper limit for the subsidy 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 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 classification, 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 and 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 involves roof overlay work or complete replacement, 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 floods into the room, it creates a sense of openness, making it feel pleasant.
Energy Savings
This also contributes to high light transmission, allowing you to save on electricity costs due to the presence of natural light. As a result, you will reduce the need to turn on electric lights during the day, making it energy-efficient.
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 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 bothersome, 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. 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. Sheet Metal Processing and New Roof Material Installation Around Skylight
If the skylight is not properly sealed, it significantly increases the risk of 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 Yokohama, and you may be unsure 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 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 showcasing their work history.
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 can also be 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 roofs, roof work is often involved as well.
If a contractor lacks knowledge about roofs or cannot handle roof work, it may lead to issues such as leaks after installation or high construction costs.
Moreover, 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 for roof 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 depending on the 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 aftercare services separately from 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 inspections every year.
We also provide free responses for simple repairs such as partial sealing.
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 repair costs can 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, obtaining estimates from multiple contractors is essential.
When comparing estimates, it’s important to look at more than just the cost,
“Items in the estimate”
“Materials and quality of glass”
“Confirmation of the process”
and make detailed comparisons! 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 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 has to investigate and then request a subcontractor, 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 work, one of the disadvantages is that response times during emergencies, such as post-construction issues, can be delayed.
If you are looking for a skylight replacement contractor in Aoba-ku, Yokohama, please contact Kakeru Koumuten Co., Ltd.
Our company handles many roofing and exterior painting projects in Aoba-ku, Yokohama. 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 with us!
We provide optimal solutions for specific requests such as “I want it to last long with one renovation,” “I want to keep costs down as much as possible,” and “I want to improve insulation performance because the indoors are hot.”
We conduct 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 for exterior work!
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 Aoba-ku, Yokohama
Aoba-ku, Arai-cho / Aoba-ku, Imai-cho / Aoba-ku, Iwai-cho / Aoba-ku, Iwasaki-cho / Aoba-ku, Iwama-cho / Aoba-ku, Okazawa-cho / Aoba-ku, Kasumidai / Aoba-ku, Kaito-cho / Aoba-ku, Kamadai-cho / Aoba-ku, Kamaya-cho / Aoba-ku, Kamisugita-cho / Aoba-ku, Kamihoshikawa / Aoba-ku, Kariba-cho / Aoba-ku, Kawashima-cho / Aoba-ku, Kawabe-cho / Aoba-ku, Kobe-cho / Aoba-ku, Gontazaka / Aoba-ku, Sakaiguchi-cho / Aoba-ku, Sakaiguchi-honcho / Aoba-ku, Sakamoto-cho / Aoba-ku, Sakuragaoka / Aoba-ku, Shinsakuragaoka / Aoba-ku, Setogaya-cho / Aoba-ku, Tsukimidai / Aoba-ku, Tenno-cho / Aoba-ku, Tokiwadai / Aoba-ku, Nishikubo-cho / Aoba-ku, Nishiya-cho / Aoba-ku, Nishiya / Aoba-ku, Hatsuneoka / Aoba-ku, Hanamidai / Aoba-ku, Higashikawashima-cho / Aoba-ku, Fujizuka-cho / Aoba-ku, Butsukou-cho / Aoba-ku, Butsukou-nishi / Aoba-ku, Hosei / Aoba-ku, Hoshikawa / Aoba-ku, Hodogaya-cho / Aoba-ku, Mineoka-cho / Aoba-ku, Minesawa-cho / Aoba-ku, Miyata-cho / Aoba-ku, Myojindai / Aoba-ku, Wada
・Trust Kakeru Koumuten Co., Ltd. for exterior renovations in Aoba-ku, Yokohama!
・Trust Kakeru Koumuten Co., Ltd. for roof renovations in Aoba-ku, Yokohama!
・Trust Kakeru Koumuten Co., Ltd. for exterior wall painting in Aoba-ku, Yokohama!
・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!
We also welcome inquiries via LINE◎
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!





