Leave your skylight repairs and replacements in Minami-ku, Sagamihara to Kakeru Koumuten Co., Ltd.!
If you are looking for a
skylight contractor in
Kakeru Koumuten
Kakeru Koumuten specializes in
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 also 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”
For customers living in Aoba-ku, Yokohama, who are considering skylight replacements,
this information will definitely be helpful, so please take a look!
To conclude, the most important thing to consider when planning skylight work is
“multiple estimates”!
Let’s obtain estimates from at least three skylight repair companies that serve Aoba-ku, Yokohama!
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, Yokohama is that
“Being a roofing company in Kanagawa Prefecture” 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 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 assemble scaffolding in-house.
By performing scaffolding work with our own scaffolding team instead of outsourcing, we can reduce scaffolding costs 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 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.
Showroom Dedicated to Exterior Renovations
In our showroom, you can not only have meetings, but 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 inquiry to project completion, everything is handled by Kakeru Koumuten in a consistent manner, allowing us to keep costs down while providing high-quality skylight installation.
Additionally, one representative will handle everything from the estimate to project completion.
Since the person in charge does not change, whether it’s sales or construction management, smooth communication is possible.
We can handle everything from temporary scaffolding setup 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 done simultaneously with roof replacement or cover work, significantly reducing costs!
3. Various permits obtained and skilled workers on staff
We have obtained permits for construction work and 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 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 use 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 enhance our skills, we create various roof models and conduct practical training.
Since different sites require various processing techniques and skills, we regularly provide technical training to ensure that all staff can respond effectively.
Subsidies and Grants Available for Skylight Construction in Minami-ku, Sagamihara
In Minami-ku, Sagamihara, there are potential subsidies available when conducting 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 utilize 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 the 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 “up to the maximum amount.”
For more details, please click here!
Child-Rearing Green Housing Support Project
Eligible Applicants
Households with children (households with children under 18 years old) 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 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 exceeding ZEH standards. For renovations, it is required to carry out work that improves the energy efficiency 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 upper limit is between 400,000 yen and 600,000 yen, depending on the content of the work. In both cases, even if multiple works are carried out, the total 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 amount subsidy” is provided based on the content of the work and performance category. Therefore, in effect, the government covers a portion 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 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 the 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 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 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 see here!
[Sagamihara City] Reduction of Fixed Asset Tax for Energy Loss Prevention Renovation (Energy-Saving Renovation)
In Sagamihara City, as a tax incentive to promote energy conservation in homes, for houses that have been located since before April 1, 2014, if certain energy-saving renovation works are carried out, one-third of the fixed asset tax for the following year will be reduced based on the declaration.
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 based on 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 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, allowing you to save on electricity costs due to the presence of natural light. As a result, you will use less electricity during the day, making it 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, installing large windows may 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 for installation, there is always some risk of leaks.
However, with proper installation and regular maintenance, the current skylights can minimize this risk 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, which is a disadvantage. This sound can be particularly noticeable during heavy rain or storms.
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
| 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 Frame Assembly
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 carry out this work with care.
6. New Skylight Installation
By properly performing rainwater management and conducting regular maintenance, you can prevent leaks.
7. Cleaning
This concludes the work.
How to Choose a Skylight Contractor
There are many skylight contractors in Sagamihara City, and it can be confusing to decide which one to choose.
Therefore, when requesting skylight replacement work or leak repairs, be sure to 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 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 request repairs.
If you are concerned about whether the contractor you are considering will handle your request properly, choose one with ample 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 making a request.
Kakeru Koumuten Co., Ltd. specializes in exterior construction, 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 the contractor lacks knowledge about roofs or cannot handle roof work, it may lead to problems 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 at the same time 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 Warranty and After-Service Availability
When choosing a skylight contractor, let’s confirm the warranty availability.
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 a warranty are often confident in their work, which can serve as 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 after-service in addition to the warranty, so be sure to check if the contractor you are considering has warranties andafter-service.
Kakeru Koumuten Co., Ltd. sends out annual DM for after-service, allowing for yearly inspections.
We provide free support for simple repairs such as partial sealing.
Obtain Estimates from Multiple Contractors (at least 3 companies)
When requesting skylight installation, be sure to obtain estimates from multiple contractors.
Even for the same repair or replacement work, the repair costs and warranty or after-service can vary by contractor.
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
“Estimate Items”
“Materials and Quality such as Glass”
“Confirmation of Process”
and make a detailed comparison! If the quality of auxiliary materials is low or processes are skipped, costs can be reduced, so avoid making decisions based solely on price!
Check if the Company Performs the Work Itself
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 expensive work like skylight replacement, even though partial repairs 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 drawbacks is that their response to emergencies, such as post-construction troubles, tends to be slow.
If you are looking for a skylight replacement contractor in Minami-ku, Sagamihara, please contact Kakeru Koumuten Co., Ltd.
Our company handles many roofing and exterior painting projects in Minami-ku, Sagamihara. 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 may also be able to provide emergency measures without scaffolding, so please feel free to consult with us!
“I want it to last long with one renovation”, “I want to keep costs as low as possible”, “I want to improve insulation performance because the room is hot”, we will provide the best solutions for your specific requests.
From temporary scaffolding construction to roofing and exterior painting, we perform all work 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 Minami-ku, Sagamihara
Asahi-cho, Minami-ku, Sagamihara / Amazudai, Minami-ku, Sagamihara / Shin-Isono, Minami-ku, Sagamihara / Isobe, Minami-ku, Sagamihara / Unomori, Minami-ku, Sagamihara / Ohnodai, Minami-ku, Sagamihara / Kamitsuruma, Minami-ku, Sagamihara / Kamitsuruma Honcho, Minami-ku, Sagamihara / Kitasato, Minami-ku, Sagamihara / Kobuchi, Minami-ku, Sagamihara / Sakae-cho, Minami-ku, Sagamihara / Sagami-Ono, Minami-ku, Sagamihara / Sagami-Dai Danchi, Minami-ku, Sagamihara / Sagami-Dai, Minami-ku, Sagamihara / Sakuradai, Minami-ku, Sagamihara / Shimomizo, Minami-ku, Sagamihara / Shindo, Minami-ku, Sagamihara / Sounan, Minami-ku, Sagamihara / Sobudai Danchi, Minami-ku, Sagamihara / Sobudai, Minami-ku, Sagamihara / Toma, Minami-ku, Sagamihara / Nishi-Oonuma, Minami-ku, Sagamihara / Higashi-Oonuma, Minami-ku, Sagamihara / Higashi-Rinkan, Minami-ku, Sagamihara / Futaba, Minami-ku, Sagamihara / Bunkyo, Minami-ku, Sagamihara / Matsugae-cho, Minami-ku, Sagamihara / Misono, Minami-ku, Sagamihara / Minami-Dai, Minami-ku, Sagamihara / Toyo-cho, Minami-ku, Sagamihara / Wakamatsu, Minami-ku, Sagamihara
・Leave your exterior wall painting in Aoba-ku, Sagamihara to Kakeru Koumuten Co., Ltd.!
・Leave your roof renovation in Aoba-ku, Sagamihara to Kakeru Koumuten Co., Ltd.!
・Leave your exterior renovation in Aoba-ku, Sagamihara to Kakeru Koumuten Co., Ltd.!
・Kakeru Koumuten Co., Ltd.施工実績
・Kakeru Koumuten Co., Ltd. After Maintenance
・Kakeru Koumuten Co., Ltd.施工メニュー・料金表
・Kakeru Koumuten Co., Ltd. Staff Blog & News
・We explain the importance of getting multiple estimates and points to compare!
・Leave your water leak repairs in Aoba-ku, Sagamihara to Kakeru Koumuten Co., Ltd.!
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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!





