Construction Menu | Leak Repair | Thorough Explanation of Effective Repair Methods and Costs

At Kakeru Koumuten Co., Ltd., we strive to provide rain leak repair services with minimal burden on our customers! We identify the source of the leak from the affected area and carry out repairs.

The costs and repair details vary depending on the type of work, so we will introduce them by type below! Should you address rain leaks early? We thoroughly explain the causes of rain leaks and effective countermeasures!

Roof Sealing Repair

Sealing repair is the most common method to prevent rain leaks from the roof. It is a simple yet effective means of filling gaps where rain may enter with sealing material. This will immediately stop the leak. Sealing repairs can be applied to any roof as long as the necessary materials and tools are available, which helps keep the “cost of rain leak repair” down.

Construction Process

1. Rain Leak Diagnosis: We check the current condition of the roof and identify areas that require sealing.

2. Removal of Old Sealing: We remove old sealing or cracked sealing.
3. Substrate Treatment: We use a primer to ensure better adhesion of the sealing.
4. Sealing Application: We select appropriate sealing materials and use a dedicated sealing gun to apply them evenly. We fill to form a uniform and adhesive layer, and finish by spreading with a trowel.

⚠️ The above construction steps are general procedures for roof sealing repair, but they may vary depending on the specific situation.
⚠️ Since sealing repairs are close to temporary measures, it may be difficult to respond depending on the condition.

Voices of Customers Who Have Actually Had Work Done

Since it had not been long since I requested roofing work from another company, I was considering a cost-effective solution for the roof leak repair. I was able to reduce the cost of the repair with sealing, and I am very satisfied.

I consulted Kakeru Koumuten Co., Ltd. for the roof leak repair. Another company recommended a complete roof replacement, but since I was considering demolition, I requested a repair. The sealing has stopped the leak, and it remains stable now. Thank you very much.

Click here for other roofing construction results

Replacement of Damaged Roofing Materials

If roofing materials are damaged and leaks occur, the problem can be resolved by replacing only the affected roofing materials. The “cost of roof leak repair” varies depending on the type and size of the roofing materials used, so a specific estimate is necessary for each case.

BEFORE

AFTER

Construction Process

1. On-site Investigation: Identify the damaged roofing materials and prepare similar materials to the existing ones. Also, check for any other damages or issues.
2. Removal of Old Roofing Materials: Remove the damaged roofing materials. Careful removal is done with specialized tools to avoid damaging the surrounding roofing materials.
3. Installation of New Roofing Materials: Install new roofing materials in the place of the removed ones. Create a solid joint with adjacent materials to ensure waterproofing.
4. Finishing and Cleaning: If necessary, secure with sealing materials. If there are no issues, clean up thoroughly to complete the work.

⚠️If the entire roof or the underlying structure has severely deteriorated, partial replacement of roofing materials may be difficult.

Voices of Customers Who Have Actually Had Work Done

I had a leak and quickly searched for “leak repair,” where I found Kakeru Koumuten Co., Ltd. I wasn’t aware, but I learned that part of my roof was damaged, and they provided repairs that fit my budget.

Thank you for your prompt response!

I accidentally dropped something from the window and broke part of the roof below, so I requested repairs before it caused a leak. I didn’t have much knowledge about roofs and was worried that I might need to replace the entire roof. However, I was relieved to learn that simply replacing the damaged section would be sufficient.

For more roofing construction results, click here

Partial Replacement of Ridge Cap

If leaks are occurring from the ridge cap, partial replacement of the ridge cap is recommended. Replacing all ridge caps may increase the “cost of leak repair.”

For articles about ridge caps, click here↓

BEFORE

AFTER

Construction Process

1. On-site Investigation: Identify the areas where rain is entering or where the ridge cap is damaged.
2. Dismantling Existing Ridge Cap: Dismantle and remove the existing ridge cap. At this time, the underlying material (nail board) is often damaged as well, so it will be dismantled together.
3. New Underlayment: Install a new underlayment (nail board). There are cedar and resin options for the nail board, with the resin version expected to have double the durability of cedar!
4. New Ridge Cap: Install a ridge cap that matches the color and material of the new roofing material! Ensure proper sealing at the joints to prevent leaks!
5. Cleaning: Once cleaned thoroughly, the work will be completed!

⚠️If the ridge cap is partially blown off or damaged, it is often the case that the entire nail board has deteriorated. If you do not plan to demolish or move, we generally recommend a full replacement.

Customer Testimonials from Actual Projects

I was informed by another company that my roof was peeling, so I requested estimates from about three companies. They proposed a roof overlay construction and a full replacement of the ridge cap, but since I was also considering demolition, I wanted to keep repair costs down. Kakeru Koumuten Co., Ltd. provided me with three different estimates, and I decided to proceed with a cost-effective partial replacement of the ridge cap.

I experienced a leak and was in a hurry to find a contractor, so I contacted Kakeru Koumuten, which was nearby.

They quickly identified the cause of the leak and repaired it right away. It has been over a year since then, and I have been living comfortably. Thank you very much.

See Other Roofing Project Results Here

Repair of Plaster (Surface) on Tile Roofs

The plaster on the ridge tiles can deteriorate, leading to leaks. In such cases, removing the old plaster and reapplying it can prevent leaks. The “cost of leak repair” is relatively low, and repairing the plaster also improves the appearance of the roof.

Read more about plaster here↓

Construction Process

1. Existing Plaster Demolition: We will completely remove the peeling plaster using a scraper or wire brush.

2. Substrate Inspection: Before reapplying plaster, we will check the condition of the substrate. If there is any damage or corrosion that needs to be repaired, it must be fixed or replaced.
3. Plaster Application: We will apply the plaster evenly. Using a trowel or similar tool, we will firmly set it in place.
4. Finishing: Once the plaster has sufficiently dried, we will perform finishing as needed. We will use finishing agents or sealants to enhance durability.

⚠️ If the plaster is partially peeling or damaged, it is often the case that the overall plaster has deteriorated. If you do not plan to demolish or move, we generally recommend replacing the entire plaster or re-laying the ridge tiles.

Customer Testimonials from Actual Projects

I noticed that the plaster was peeling and sitting on the roof, which made me concerned about leaks, so I had Kakeru Koumuten Co., Ltd. take a look. They said that only plaster repair was necessary, so I asked them to proceed. The cost was also lower than I expected, and I am satisfied.

I noticed that a section of the plaster was peeling and found Kakeru Koumuten while searching online. Other companies recommended replacing the tile roof or re-laying the ridge tiles, but Kakeru Koumuten provided three different estimates, taking costs into consideration. Since the plaster was only peeling in one area, I decided to request partial plaster repair, and I felt it was the right choice to hire Kakeru Koumuten.

Service Areas

Tokyo

Akiyama City / Akiruno City / Adachi Ward / Arakawa Ward / Itabashi Ward / Inagi City / Edogawa Ward / Ome City / Edogawa Ward / Ome City / Ota Ward / Katsushika Ward / Kita Ward / Kiyose City / Kunitachi City / Koto Ward / Koganei City / Kokubunji City / Kodaira City / Komae City / Shinagawa Ward / Shibuya Ward / Shinjuku Ward / Suginami Ward / Sumida Ward / Setagaya Ward / Taito Ward / Tachikawa City / Tama City / Chuo Ward / Chofu City / Chiyoda Ward / Toshima Ward / Nakano Ward / Okutama / Nishi-Tokyo City / Nerima Ward / Hachioji City / Hamura City / Higashi-Kurume City / Higashimurayama City / Higashiyamato City / Hino City / Fuchu City / Fussa City / Bunkyo Ward / Machida City / Mitaka City / Minato Ward / Musashimurayama City / Musashino City / Meguro Ward

Kanagawa

Aikou-gun Aikawa Town / Ashigarakami-gun Oi Town / Ashigarakami-gun Kaisei Town / Ashigarakami-gun Nakai Town / Ashigarakami-gun Matsuda Town / Ashigarakami-gun Yamato Town / Ashigarashimo-gun Hakone Town / Ashigarashimo-gun Manazuru Town / Ashigarashimo-gun Yugawara Town / Isehara City / Odawara City / Kamakura City / Kawasaki City / Kawasaki City Kawasaki Ward / Kawasaki City Asao Ward / Kawasaki City Saiwai Ward / Kawasaki City Takatsu Ward / Kawasaki City Tama Ward / Kawasaki City Nakahara Ward / Kawasaki City Miyamae Ward / Koza-gun Samukawa Town / Zushi City / Chigasaki City / Nakagun Oiso Town / Nakagun Ninomiya Town / Hadano City / Hiratsuka City / Fujisawa City / Miura-gun Hayama Town / Miura City / Minamiashigara City / Yokosuka City / Yokohama City / Yokohama City Aoba Ward / Yokohama City Asahi Ward / Yokohama City Izumi Ward / Yokohama City Isogo Ward / Yokohama City Kanagawa Ward / Yokohama City Kanazawa Ward / Yokohama City Konan Ward / Yokohama City Kohoku Ward / Yokohama City Sakae Ward / Yokohama City Seya Ward / Yokohama City Tsuzuki Ward / Yokohama City Tsurumi Ward / Yokohama City Totsuka Ward / Yokohama City Naka Ward / Yokohama City Nishi Ward / Yokohama City Hodogaya Ward / Yokohama City Midori Ward / Yokohama City Minami Ward / Sagamihara City / Sagamihara City Midori Ward / Sagamihara City Minami Ward / Sagamihara City Chuo Ward / Ebina City / Atsugi City

・Saitama Prefecture, Chiba Prefecture, and parts of Yamanashi Prefecture (Please consult with us)

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