Leave your skylight repair and replacement in Kohoku-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
If you are looking for
skylight contractors in
Kakeru Koumuten
Kakeru Koumuten Co., Ltd. handles everything from temporary scaffolding installation to
roof work and skylight installation with complete in-house 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 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
“multiple estimates”!
Let’s obtain at least three estimates from skylight repair contractors covering 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
“Being a roofing company in Yokohama” is one of the reasons, 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. Equipment Specialized in Exterior Renovation
Kakeru Koumuten Co., Ltd. has prepared the following warehouses and material storage to provide low-cost, high-quality exterior renovations such as skylight construction.
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 construction, allowing us to set up scaffolding ourselves.
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 approximately enough scaffolding materials for 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 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, by separating 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 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 complete in-house construction.
From inquiries to project completion, everything is handled by Kakeru Koumuten in a consistent manner, allowing for high-quality skylight installation at reduced costs.
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 construction management, smooth communication is possible.
We can handle everything from temporary scaffolding installation to exterior painting, roofing work, and exterior cover work completely in-house!
Since skylight installation involves dismantling or peeling off roofing materials, it can significantly reduce costs when done 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 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.
If you are unable to access the roof at high altitudes, we can utilize drones to assist!
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
To improve our skills, we are creating various roof models and conducting practical training.
Since different sites require various processing and techniques, we regularly provide skill enhancement training to ensure all staff can respond effectively.
Possible Subsidies and Grants for Skylight Construction in Aoba-ku, Yokohama
In Aoba-ku, Yokohama, there are potential subsidies available when conducting skylight construction!
For details, please contact our company or your local municipality!
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 utilize products with insulation performance specified by the national government, such as windows, glass, and insulation materials for energy-efficient renovations. Additionally, the home must ensure seismic performance, and a prior application must be submitted before the start of construction, with construction commencing only after receiving a grant decision. Eligible renovation work includes insulation improvements 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 for implementing eligible energy-efficient renovation work, 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 provided will be “up to the maximum limit.”
Please see here for more details!
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. 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 performance standards set by the government, such as exceeding ZEH standards. For renovations, the work must improve the home’s energy efficiency performance through insulation improvements 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 classification of the house. For renovations, the maximum subsidy 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 upper limit.
Subsidy Rate
This program 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 covers part of the construction cost.
Please see here for more details!
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 refunded to the homeowners through discounts on construction costs.
Requirements
Eligible renovations include the installation of interior windows, replacement of exterior windows, and glass replacement 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 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 house is limited to this upper limit.
Subsidy Rate
The subsidy rate is approximately equivalent to half of the construction cost. 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 cost.
Please see here for more details!
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)
(株式会社翔工務店施工)
(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 complete roof replacement, type of existing roofing materials, 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, 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 conducive to energy savings.
Good Ventilation

By installing a skylight, you can open and close it, which improves ventilation.
Warm air rises, so airflow also improves.
High Privacy
In areas where houses are closely packed together, installing large windows can make the interior visible. In such cases, skylights are installed on the roof, which helps maintain privacy.
Disadvantages of Skylights
Risk of Leaks
The biggest concern when installing a skylight is the risk of leaks. After all, since it involves opening up the roof, there is some 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 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 transmit into the room. This 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 |
| Due to a broken skylight glass, 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 Frame Assembly
4. Waterproof Sheet Installation Around Skylight
This is a crucial task to prevent leaks.
5. Metal Work Around Skylight and New Roof Material Installation
If the skylight is not properly sealed, there is a high risk of leaks. Therefore, it is essential to carry out this step with care.
6. New Skylight Installation
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 whether they can also handle roof work
● Check for warranties and aftercare services
● Obtain estimates from multiple contractors (at least 3 companies)
● 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 where they showcase 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 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 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, it may lead to problems 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 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 made at no cost, providing peace of mind!
Additionally, companies that offer warranty periods can be seen as confident in their work, serving as a criterion for selecting a contractor!
Warranty periods vary by contractor and the nature of the 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 DM for after-sales maintenance, allowing for yearly inspections.
We provide free assistance for simple repairs such as partial sealing.
Obtain estimates from multiple contractors (at least 3)
When requesting skylight installation, let’s obtain estimates from multiple contractors.
Even for the same repair or replacement work, the repair costs may differ between contractors, as well as the warranties and after-sales 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, consider not only the cost but also
“Items in the estimate”
“Materials and quality such as glass”
“Confirmation of the process”
and make a detailed comparison! If the quality of the 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 change based 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 who want to keep costs down are suggested to replace the skylight instead of a partial repair that would suffice.
Additionally, since the contractor will investigate and then request a subcontractor, it will take extra time and cost.
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 disadvantages is that their response to emergencies or troubles after construction tends to be delayed.
If you are looking for a skylight replacement contractor in Kohoku-ku, Yokohama, please contact Kakeru Koumuten Co., Ltd.
Our company handles many roofing and exterior painting projects in Kohoku-ku, Yokohama. We are happy to assist with skylight replacements, roof overlays, roof re-roofing, exterior painting, exterior cladding replacements, and partial roof repairs, as well as other repairs!
In urgent cases such as leak repairs, we can also provide emergency measures without scaffolding, so please feel free to consult us!
For specific requests like “I want it to last long with one renovation”, “I want to keep costs down as much as possible”, or “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 completely in-house.
We are confident that we will not be outdone in terms of cost, quality, and organization compared to other companies in 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 Kohoku-ku, Yokohama
Kikuna, Kohoku-ku, Yokohama / Kishinecho, Kohoku-ku, Yokohama / Kozukuecho, Kohoku-ku, Yokohama / Shinoharakita, Kohoku-ku, Yokohama / Shinoharadai, Kohoku-ku, Yokohama / Shinoharacho, Kohoku-ku, Yokohama / Shinoharanishimachi, Kohoku-ku, Yokohama / Shinohara Higashi, Kohoku-ku, Yokohama / Shimodacho, Kohoku-ku, Yokohama / Shin-Yokohama, Kohoku-ku, Yokohama / Shin-Yoshidacho, Kohoku-ku, Yokohama / Takadacho, Kohoku-ku, Yokohama / Tarumachi, Kohoku-ku, Yokohama / Tsunashima Kamimachi, Kohoku-ku, Yokohama / Tsunashima Dai, Kohoku-ku, Yokohama / Tsunashima Nishi, Kohoku-ku, Yokohama / Tsunashima Higashi, Kohoku-ku, Yokohama / Toriyamacho, Kohoku-ku, Yokohama / Nakatehara, Kohoku-ku, Yokohama / Nishinagao, Kohoku-ku, Yokohama / Shin-Hanecho, Kohoku-ku, Yokohama / Hiyoshi, Kohoku-ku, Yokohama / Hiyoshi Honcho, Kohoku-ku, Yokohama / Fujizuka, Kohoku-ku, Yokohama / Mameidocho, Kohoku-ku, Yokohama / Minowacho, Kohoku-ku, Yokohama / Moriokacho, Kohoku-ku, Yokohama / Ozone, Kohoku-ku, Yokohama / Ozone Dai, Kohoku-ku, Yokohama / Takada Higashi, Kohoku-ku, Yokohama / Takada Nishi, Kohoku-ku, Yokohama / Shin-Yoshida Higashi, Kohoku-ku, Yokohama / Kitashin-Yokohama, Kohoku-ku, Yokohama / Okurayama, Kohoku-ku, Yokohama
・Trust Kakeru Koumuten for exterior wall painting in Aoba-ku, Yokohama!
・Trust Kakeru Koumuten for roof renovations in Aoba-ku, Yokohama!
・Trust Kakeru Koumuten for exterior renovations 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
・Explaining the importance of getting multiple estimates and key comparison points!
・Trust Kakeru Koumuten for leak repairs in Aoba-ku, Yokohama!
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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!





