Hello!
I am Yamanaka from Kakeru Koumuten Co., Ltd., a specialist in roofing, exterior wall painting, and exterior renovations located in Aoba-ku, Yokohama, Kanagawa Prefecture!
This is a case study of an exterior renovation project in Chigasaki City, Kanagawa Prefecture.
The work involved exterior wall painting and joint caulking.
On this page, I will explain the actual results of the work carried out by Kakeru Koumuten!
Thank you very much for choosing Kakeru Koumuten!
目次
Construction Data
| Construction Location |
| Chigasaki City, Kanagawa Prefecture |
| Work Details |
|
Temporary scaffolding installation, exterior wall painting work, joint caulking work |
| Process Leading to the Construction |
| We were referred by the house manufacturer who built the building, and we visited to inspect the condition and provide an estimate. There were areas where the sealing was completely cut, and since the exterior wall siding was also deteriorating, we proposed exterior wall painting and joint caulking work. Although a clear coat was requested, the deterioration at the corners was severe, and using a clear coat would leave the deteriorated areas visible, so we applied color only to the corners. |
| Paint Used |
| Corner exterior wall painting: Premium Silicon (Color: Biscuit Brown) Exterior wall: Royal Cera Clear (Clear) Accessory part painting: Yumelock (Color: N90) Eaves: Ken Ace G2 (Color: N90) |
| Price Range |
| 1,000,000 to 1,100,000 yen |
| Construction Period |
| 16 days |
| Completion Month |
| December 2023 |
Exterior Wall Painting Work Construction Procedure
1. High-Pressure Washing

Through high-pressure washing of the exterior walls, we thoroughly remove dirt and moss! If any dirt remains, it can affect the adhesion and lifespan of the paint, so we wash carefully.
2. Protection of Areas

3. Primer Coat

4. Top Coat
Royal Seraclear is a clear paint compatible with photocatalytic siding (difficult-to-adhere siding).


5. Painting of Additional Parts (Rain Gutter, Eaves, Ventilation Openings)
Rain Gutter
・Eaves
・Ventilation Openings in the Eaves
Please check out other painting project results from here!
Joint Replacement Work Procedure
1. Removal of Existing Sealing Material
This is referred to as sealing, caulking, or joints. It is a crucial area that can easily lead to leaks and cause cracks or lifting in the siding. Cracks and peeling are signs of deterioration!
2. Applying Masking Tape
3. Applying Primer
4. Filling with Sealing Material
Auton Exceed has a durability of about 3 times that of regular caulking materials (urethane, modified silicone, etc.). The expected durability is about 30 years. The cost will be about 50,000 to 100,000 yen higher for a building with a total floor area of 30 tsubo.
5. Finishing with a Trowel
6. Removing Masking Tape
That concludes our work.
Typically, we would repaint the exterior walls after replacing the joints, but in the case of Kikusui Chemical/Royal Ceraclear, it is not allowed to apply paint on the replaced joints, so we replaced the joints after painting. The process varies depending on the materials used, and knowledge is required!
If the exterior wall is siding, it is common to carry out joint replacement and exterior wall painting together, so caution is necessary!
We were able to finish beautifully this time as well!
| Exterior Wall Paint | ![]() |
|---|---|
| Exterior Color | Clear![]() |
| Sealing Material |
Auto Chemical / Auton Exceed – Expected Lifespan 30 Years
|
|---|
Leave Your Exterior Painting in Chigasaki City to Kakeru Koumuten!
Our company is based in Aoba-ku, Yokohama, and we primarily carry out construction work in Kanagawa and Tokyo Prefectures.
We have extensive experience in exterior renovations in Chigasaki City.
We are happy to assist with partial painting, including exterior painting, waterproofing work, and other painting projects.
“I just want to know the estimate for exterior painting” or “I want to know about the paint suitable for my home” If you have any questions or concerns, please feel free to contact us!
We also have pricing plans for exterior painting work available, so please take a look if you’re interested!
・Exterior Painting and Sealing Work Price List
・DIY Painting Plan | For those who want to try DIY roof and exterior painting! We will only set up the scaffolding!
・Latest! Subsidies and Grants in Yokohama City, Kanagawa Prefecture | About the Reduction System
Conclusion
Estimates and inspections are, of course, free! If you have any issues with your roof, rain gutters, exterior, or landscaping, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten Co., Ltd. is a remodeling company strong in exterior renovations, and we carry out everything from temporary scaffolding work to roof work and exterior painting completely in-house.
When it comes to exterior renovation work, we are confident that we will not be outdone by other companies in terms of “cost, quality, and efficiency”!
We are confident in our exterior renovations, so we welcome comparison estimates!
We offer comprehensive construction guarantees and aftercare maintenance, and we have received positive feedback for our cost performance and appropriate proposals that align with our customers’ future life plans!
“I’m glad I asked them!” We take every request seriously to ensure that our customers feel this way.
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
・Aoba-ku, Yokohama | We conducted exterior wall painting work using premium silicon!
・Aoba-ku, Yokohama | We conducted exterior wall painting and roof cover work!
・Aoba-ku, Yokohama | We conducted exterior wall painting work with Royal Ceraclear!
・A summary of popular colors for exterior wall painting! We introduce recommended color combinations!
・For those who want to try DIY exterior wall and roof painting! Scaffold installation only! Roof and exterior wall painting DIY plan!
・Latest! Subsidies in Kanagawa Prefecture! We will introduce grants and reduction systems!
・Is exterior wall painting unnecessary? We introduce the risks of leaving it alone!
・How much does exterior wall painting cost? Are there tips to reduce costs?
・When is the best time for exterior wall painting? How to determine the best timing!
・How to Find a Contractor for Rain Gutter Repairs! Where Should You Request Rain Gutter Repairs?
・How Much Does Exterior Painting Cost? Are There Tips to Reduce Costs?
LINE consultations are also very welcome◎
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!



