BEFORE

AFTER

Construction Data | Nerima-ku, Tokyo

Construction Location
 Nerima Ward, Tokyo
Construction details
 Temporary Scaffolding Installation
 Cap flashing metal replacement work
New Materials Used
 ◯ Cap flashing metal
  New substrate: structural plywood
  Preservative: wood preservative
  Waterproof sheet: modified asphalt roofing
  Cap flashing metal: Galvalume steel
Price Range
 Approximately 50,000–100,000 yen
Construction Period
 Approximately 1 day
Completion month
 2025-04

Procedure for Replacing Cap Flashing

1. Removal of Existing Cap Flashing

First, we will remove the existing railing and cap flashing!

As seen in the photo, the substrate of the existing cap flashing was deteriorated due to water leakage. The cap flashing is generally fixed with screws or nails from above, which is a “top-down” method that is not recommended. It is essential to secure it from the sides or by gripping it.

We will carefully dismantle it to avoid damaging the exterior walls!

2. Installation of New Cap Flashing Substrate and Application of Preservative

We will cut the new substrate to match the size of the cap flashing and secure it with screws!

Next, we will apply a wood preservative to the substrate. By applying the preservative, we can significantly extend the durability in the future.

3. Installation of Waterproof Sheet

We will install a waterproof sheet over the substrate!

The waterproof sheet used is a modified asphalt roofing material, which is said to have twice the durability of regular asphalt roofing.

As a secondary waterproofing measure, if the roofing is properly installed, there will be no leaks! We will ensure it is securely attached to prevent it from blowing away.

4. Installation of Galvalume Steel Cap Flashing

We will cover the new Galvalume steel cap and secure it with screws on the sides.

To prevent rain from entering, we will thoroughly seal the joints!

5. Waterproof Sealing

We will apply sealing to the overlapping parts of the cap metal and the junction with the exterior wall for waterproofing! This enhances strength and waterproofing. If this sealing is inadequate, rainwater can enter through gaps, accelerating deterioration!

6. Completion of Cap Metal Replacement Work

Finally, we will clean any dirt or fingerprints from the cap, completing the work! The customer was able to confirm the finish and was very satisfied!

If you are looking for exterior renovations in Nerima-ku, Tokyo, please contact Kakeru Koumuten Co., Ltd.

Our company has handled numerous exterior renovations in Nerima-ku, Tokyo. We are happy to assist with roof overlays, roof replacements, exterior wall and roof painting, exterior wall replacements, and partial roof repairs, as well as other repairs!

In urgent cases such as leak repairs, we may also be able to provide emergency measures without scaffolding, so please consult with us!

“I want it to last long with just one renovation”, “I want to keep costs down as much as possible”, “I want to improve insulation because the indoors are hot”, we will provide optimal solutions for your specific requests.

From temporary scaffolding work to roofing and exterior painting, we carry out all work completely in-house.
We are confident that we will not be outdone in terms of cost, quality, and efficiency compared to other companies in exterior work!
We welcome competitive estimates as we are confident in our services!

Areas Covered for Exterior Renovations

At Kakeru Koumuten Co., Ltd., we accept requests throughout Kanagawa Prefecture and Tokyo.

List of Areas in Nerima-ku, Tokyo

Nerima-ku, Tokyo Asahigaoka / Nerima-ku, Tokyo Asahimachi / Nerima-ku, Tokyo Oizumigakuencho / Nerima-ku, Tokyo Oizumicho / Nerima-ku, Tokyo Kasugacho / Nerima-ku, Tokyo Kamishakujii / Nerima-ku, Tokyo Kamishakujii Minamimachi / Nerima-ku, Tokyo Kitamachi / Nerima-ku, Tokyo Mukaiyama / Nerima-ku, Tokyo Kotakecho / Nerima-ku, Tokyo Sakaecho / Nerima-ku, Tokyo Sakuradai / Nerima-ku, Tokyo Shimoshakujii / Nerima-ku, Tokyo Shakujidaidai / Nerima-ku, Tokyo Shakujicho / Nerima-ku, Tokyo Sekimachihigashi / Nerima-ku, Tokyo Sekimachiminami / Nerima-ku, Tokyo Sekimachikita / Nerima-ku, Tokyo Takanoidai / Nerima-ku, Tokyo Takamatsu / Nerima-ku, Tokyo Tagara / Nerima-ku, Tokyo Tachinomach / Nerima-ku, Tokyo Doshiida / Nerima-ku, Tokyo Toyotamaue / Nerima-ku, Tokyo Toyotamachu / Nerima-ku, Tokyo Toyotamaminami / Nerima-ku, Tokyo Toyotamakita / Nerima-ku, Tokyo Nakamura / Nerima-ku, Tokyo Nakamuraminami / Nerima-ku, Tokyo Nakamurakita / Nerima-ku, Tokyo Nishioizumi / Nerima-ku, Tokyo Nishioizumicho / Nerima-ku, Tokyo Nishiki / Nerima-ku, Tokyo Nankai / Nerima-ku, Tokyo Nerima / Nerima-ku, Tokyo Hazawa / Nerima-ku, Tokyo Hayamiya / Nerima-ku, Tokyo Hikarigaoka / Nerima-ku, Tokyo Hikawadai / Nerima-ku, Tokyo Higashioizumi / Nerima-ku, Tokyo Fujimidai / Nerima-ku, Tokyo Heiwadai / Nerima-ku, Tokyo Minamioizumi / Nerima-ku, Tokyo Minamitanaka / Nerima-ku, Tokyo Miharaidai / Nerima-ku, Tokyo Tanihara

Summary

Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exteriors, please consult Kakeru Koumuten Co., Ltd. in Kanagawa Prefecture!

Kakeru Koumuten is a company strong in exterior renovations. From temporary scaffolding work to roof work and exterior painting workcompletely in-house construction! We are confident that in terms of “cost, quality, and good planning”, we do not fall behind compared to other companies!

We are confident in our exterior renovations, so we welcome competitive estimates! We also offer comprehensive construction guarantees and aftercare maintenance, receiving high praise 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.

For helpful information about exterior renovations, click here!

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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!