If you are looking for a
skylight contractor in
Aoba-ku, Yokohama
Kakeru Koumuten Co., Ltd. is a company that performs
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 respond quickly to urgent skylight repairs, such as leaks from skylights (top lights),
and emergency measures as well.
“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”
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 work is
“multiple estimates”!
Let’s obtain at least three estimates from skylight repair contractors
serving Aoba-ku!
Reasons why Kakeru Koumuten is chosen for skylight work in Aoba-ku, Yokohama
One reason why we can be entrusted with skylight repairs in Aoba-ku
is that “Kakeru Koumuten is a roofing company in Yokohama,”
but also because of our “efforts in 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 construction.
We have established 5 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 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 In-House Warehouse
We store materials used for exterior renovations.
By ordering a large quantity of materials at once, we canpurchase 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, 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 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 sales or construction management, smooth communication is possible.
We can fully handle everything from temporary scaffolding setup to exterior painting, roofing work, and exterior cover work with in-house construction!
Skylight installation involves dismantling or removing roofing materials, so by performing it simultaneously with roof replacement or cover work, you can significantly reduce costs!
3. Various Permits Obtained & Skilled Workers Available
We have obtained permits for construction work and industrial waste collection and transportation!
We have 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 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.
If you cannot 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 that 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 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 located within 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 within 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 preliminary 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-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 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 the construction or purchase of new homes with high energy efficiency performance, or energy-efficient renovations of existing homes. 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 exceeding ZEH standards. For renovations, the work must improve the home’s energy efficiency, such as 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 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 scope of work. In either case, even if multiple projects are undertaken, the total 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 scope of 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 residences (single-family homes and apartment buildings) who are conducting insulation renovation work on windows and openings are eligible. The actual application process for the subsidy is carried out by registered “window renovation contractors” recognized by 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 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 Maximum Amount
The maximum 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 maximum amount.
Subsidy Rate
The subsidy rate is approximately half of the construction costs. The actual subsidy amount is set at a fixed rate based on the type of window (interior, exterior, 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!
| Renovation & Repair Methods | Warranty | Cost |
| Skylight Replacement & Cover （Using products from Velux Japan） |
Manufacturer Warranty up to 20 years | Approximately 250,000 yen～ (Varies by method) |
| Skylight Glass Replacement | Construction Warranty 3 years～ (Varies by method) |
Approximately 60,000 yen～ (Varies by method) |
| Skylight Leak Repair (Sealing & Waterproof Tape) |
None | Approximately 10,000 yen～ (Varies by method) |
| Skylight Metal Replacement | Construction Warranty: 3 years and up (Varies by method) |
Approximately 60,000 yen and up (Varies by method) |
| Skylight Removal | Construction Warranty: 3 years and up (Varies by method) |
Approximately 60,000 yen and up (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, 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 is enhanced.
High Privacy
In areas where houses are closely built, installing large windows can make the inside of your home 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. 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 surface can easily be transmitted indoors, which is a disadvantage. Particularly during heavy rain or typhoons, the sound can be quite pronounced.
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 Repairs
| 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 Surrounding Roof Material Removal
3. Wooden Framework
4. Waterproof Sheet Installation Around Skylight
This is an important task to prevent water leaks.
5. Metal Work Around Skylight and New Roof Material Installation
If the skylight is not properly sealed, it can lead to a high risk of water leaks. Therefore, it is necessary to proceed with caution.
6. New Skylight Installation
By properly managing rainwater 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 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 showcasing 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 about to hire 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.
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 disassembly of the roof and restoration, performing it together with roof overlay work or re-roofing can significantly reduce costs!
Our company specializes in roofing work, so we can propose the optimal plan for roofing 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 done free of charge, providing peace of mind!
Additionally, companies that offer warranty periods are often confident in their work, making this a 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 aftercare services in addition to 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 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, obtain estimates from multiple contractors.
Even for the same repair or replacement work, costs and warranties or aftercare services can vary by contractor.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request the desired contractor at a lower 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 steps are skipped, costs can be reduced, so avoid making decisions based solely on price!
Check if the work is performed 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 though partial repairs would suffice.
Additionally, since they need to investigate and then request subcontractors, 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 or post-construction troubles tend to be slow.
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 siding replacement, 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 with us!
For specific requests like “I want it to last long with one renovation,” “I want to keep costs as low as possible,” or “I want to improve insulation because the room is hot,” we will provide the best solutions.
We perform everything from temporary scaffolding work to roofing and exterior painting completely in-house.
We are confident that our costs, quality, and organization for 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.
Aoba-ku, Yokohama Area List
Aoba-ku Ikenotani / Aoba-ku Izumigaoka / Aoba-ku Izumi Chuo Kita / Aoba-ku Izumi Chuo Minami / Aoba-ku Izumimachi / Aoba-ku Okazumachi / Aoba-ku Katsurazaka / Aoba-ku Kamiiida-machi / Aoba-ku Shimoida-machi / Aoba-ku Shimoizumi / Aoba-ku Shirayuri / Aoba-ku Shinbashimachi / Aoba-ku Nakada Kita / Aoba-ku Nakada-machi / Aoba-ku Nakada Nishi / Aoba-ku Nakada Higashi / Aoba-ku Nakada Minami / Aoba-ku Nishigaoka / Aoba-ku Yayoi-dai / Aoba-ku Ryoke / Aoba-ku Ryokuen
・Leave your exterior wall painting in Aoba-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
・Leave your roof renovation in Aoba-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
・Leave your exterior renovation in Aoba-ku, Yokohama 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 and announcements
・We explain the importance of getting multiple estimates and points to compare!
・Leave your leak repairs in Aoba-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
Consultations via LINE are also very welcome◎
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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!
