BEFORE

AFTER

 

Construction Data for Sumida-ku, Tokyo

Construction Location
 Sumida-ku, Tokyo
Construction details
 Temporary scaffolding installation
   Exterior wall painting work
 Joint replacement
Existing substrate
 Existing exterior wall: ALC, tile
New Materials Used

 【Exterior wall paint】
  (ALC exterior wall part)
  Primer: SK Kaken / Premium Filler
  Intermediate and top coat: SK Kaken / Premium Silicon
  (Tile part)
  Primer: Seven Chemical / Seven S Filler
  Intermediate coat (2 coats): Seven Chemical / Seven S
  Top coat (2 coats): Seven Chemical / Seven S Top
 【Accessory paint】
 Drain pipes, window sills, slim ducts

【Joint Replacement】
 Sunrise Co., Ltd. / SR Seal S70

Price Range
 900,000–1,000,000 yen
Construction Period
 About 2 weeks
Completion month
 2025-08
Inquiry Details

We received the following inquiry from a customer living in Sumida, Tokyo!
"I am concerned about the deterioration of the exterior wall and joints, so I would like to have it checked and receive a quote."

As our proposal, we suggested using premium silicone for the ALC exterior wall and Seven S Top exterior paint for the tile portion.

Joint Replacement Construction Procedure

1. Removal of Existing Sealant

We will remove the existing sealing material using a cutter or similar tools. This is referred to as sealing, caulking, or jointing. It is prone to causing leaks and can lead to cracking or lifting of the siding, making it a critical area. Cracks and peeling are signs of deterioration! If the bond breaker that prevents three-sided adhesion is peeling, we will apply a new bond breaker.

2. Masking Tape Application

 

We will check the position for applying the tape and carefully stick it on to avoid embedding it into the surface.

3. Primer Application

We will apply the primer with a brush, ensuring there are no missed spots.

4. Filling with Sealing Material

Next, we will apply the sealing material. Place the nozzle of the caulking gun against the bottom of the joint and fill it adequately.

The caulking material used for this work is Sunrise / SR Seal S70.

5. Finishing with a Trowel

Use a trowel that matches the joint width to press firmly and finish smoothly.

6. Removal of Masking Tape

Remove the masking tape promptly after finishing.

Exterior Wall Painting Construction Procedure

1. High-Pressure Washing

First, we thoroughly remove dirt and moss from the exterior walls using high-pressure washing! If dirt remains, it can affect the adhesion and durability of the paint, so we wash carefully. We also wash the exterior structures, concrete floors, and inside the rain gutters as well.

3. Protection of Various Areas

After high-pressure washing, we protect areas that will not be painted, such as windows, sashes, and floors, using masking tape, blue sheets, and polymer masks. This is a very important task in the painting process!

Neglecting protection can create gaps, allowing paint to seep in or resulting in uneven lines.

3. Surface Preparation

Next, while checking the condition of the exterior walls, we will perform substrate adjustments such as crack repairs.

4. Primer Coat

This is the first step of applying paint after high-pressure washing and substrate treatment, and it is the paint that ensures that the middle and top coats adhere well to the surface. By applying the primer coat thoroughly, there will be a significant difference in durability and finish!
The primer material for the ALC side is SK Kaken’s Premium Filler.
The primer for the tile side is Seven Chemical/Seven S Sealer.

5. Middle Coat

Next is the middle coat. This is an important process to bring out the performance of the paint, achieve a beautiful finish, and eliminate uneven application!

6. Top Coat

Next is the top coat. This will be the finishing touch for the exterior wall painting. We will be mindful to ensure there are no uneven spots or missed areas, resulting in a beautiful finish!

For the paint, we used SK Kaken’s Escape Premium Silicon on the ALC side. The manufacturer’s expected durability is said to be about 14 to 16 years.
On the tile side, we used Seven Chemical’s Seven S Top.

7. Painting of Auxiliary Parts (Rain Gutter, Eaves, Shutter Box)

Rain Gutter

Eaves

Shutter Box

Please check out our other painting project achievements here!

For painting work in Sumida-ku, Tokyo, trust Kakeru Koumuten Co., Ltd.!

Our company has extensive experience in painting renovations in Sumida-ku, Tokyo. We are happy to assist with exterior wall painting, waterproofing work, and other painting projects, even if it’s just partial painting.

If you have any questions or concerns, such as “I just want to know the estimate for exterior wall painting” or “I want to know about the paint suitable for my home”, please feel free to contact us!

We also have pricing plans for painting work listed below, so please take a look!

Summary

Estimates and inspections are, of course, free! If you have any issues with your roof, rain gutters, exterior walls, or exterior structures, please consult with Kakeru Koumuten Co., Ltd. in Aoba-ku, YokohamaKakeru Koumuten Co., Ltd.!

Kakeru Koumuten is a company strong in exterior renovations. From temporary scaffolding work to roof work and exterior wall painting workcompletely in-house construction! We are confident that our “cost, quality, and organization” are unmatched compared to other companies!

We are confident in our exterior renovations, so we welcome competitive estimates! With comprehensive construction guarantees and aftercare maintenance, 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 you feel this way.

We look forward to your inquiries. Thank you very much.

Helpful information about exterior renovations can be found here!

We welcome inquiries via LINE as well◎

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For roof, gutter and exterior construction and repairs in Kanagawa,
contact Kakeru Koumuten Co., Ltd.

Kakeru Koumuten is a young company whose team is, on average, in their late twenties, but our skills are second to none.

Our greatest strength is that we handle scaffolding, roofing and painting entirely in-house. In an industry where these tasks are usually divided among contractors, our complete service simplifies project management and helps keep costs down. Above all, if a problem arises, we respond promptly.

We proudly describe ourselves as the youngest and most helpful renovation company in Kanagawa!