Railing and coping for balconies and verandas renovationKakeru Koumuten Co., Ltd. is here to help!
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What are railings and copings?
This page provides an explanation of railing and coping renovations and their costs!
A railing is the part of a balcony or veranda that serves as a handle, helping to prevent falls and accidents.
A coping is installed at the top of the waist wall of a balcony or veranda, as shown in the photo above.
The main role of the coping is waterproofing, and if the coping itself or the underlying structure deteriorates, it can lead to leaks.
While leaks in balconies and verandas are often thought to be caused by floor waterproofing or exterior walls, it is very common for leaks to originate from the coping, making it a crucial area.
Methods and costs for coping renovation
We will explain the repair and renovation methods for railings and copings by categorizing them!
30年以上
Over 40 years
※Costs can vary significantly depending on the shape, quantity, condition of the substrate, type of new materials, and size of the cap.
If you would like a detailed estimate, please feel free to contact us!
Estimates are completely free of charge.
We will explain the repair and renovation methods for handrails and caps by pattern!
1. Sealing Repair
Sealing Repair
We will repair areas prone to leaks, such as the joints of the caps, with sealing material!
In cases where leaks are caused by joints, this often stops the leaks!
2. Cap Painting
Cap Painting (3 Coats)
This involves painting metal caps, etc. The primary purpose is to enhance aesthetics and prevent deterioration.
If leaks are occurring, painting will not stop the leaks.
Painting aluminum caps is generally not recommended, but it can be done using a strong primer.
However, the paint on aluminum caps does not last long.
3. Metal Replacement (Galvalume Steel)
Galvalume Steel Cap “JFE Steel/Kiwami MAX”
This work involves processing and installing Galvalume steel sheet metal onto the existing cap!
It prevents leaks and is made from highly durable materials, making it a recommended renovation method.
The Galvalume steel used is “JFE Steel/Kiwami MAX”, which has an expected durability of over 30 years and comes with a 15-year coating warranty and a 25-year hole warranty, providing peace of mind with solid manufacturer guarantees!
A disadvantage compared to aluminum caps is that they are more prone to dents and holes caused by impacts.
4. Metal Replacement (Aluminum)
Aluminum Cap “Lixil/Handline III”
Aluminum caps are highly durable and resistant to impacts, making them the most suitable option for verandas and balconies.
They come in a variety of colors, including stylish wood grain designs, making them a popular choice.
A disadvantage is that they may not be suitable for complex-shaped caps.
5. Handrail Installation
Lixil/Bar Handrail
If installed simultaneously with the aluminum cap, you can also choose an integrated type!
It is also possible to add it later to the Galvalume steel cap.
If the substrate is corroded, substrate work will be necessary!
Corroded Substrate of the Cap
If the wooden part of the cap substrate is corroded, as shown in the above photo, it will need to be replaced, and costs will vary depending on the extent of the corrosion.
If leaks or instability of the cap occur, neglecting it will lead to further corrosion, so we recommend prompt cap repairs!
⇩We also have articles that provide detailed information about kasagi! Please take a look!⇩
Non-Face-to-Face Estimation Service
If you provide us with photos of the floor plan and elevation, we can give you an approximate estimate!
For more details, please click the image below to contact us!
Service Areas
Our company is based in Aoba-ku, Yokohama, and the construction area for kasagi renovations primarily covers Kanagawa Prefecture and Tokyo. We can also accommodate some areas in Chiba Prefecture and Saitama Prefecture, so please consult with us!
Tokyo
Akishima 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 Prefecture
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 / Aoba-ku, Yokohama / Asahi-ku, Yokohama / Izumi-ku, Yokohama / Isogo-ku, Yokohama / Kanagawa-ku, Yokohama / Kanazawa-ku, Yokohama / Konan-ku, Yokohama / Kohoku-ku, Yokohama / Sakae-ku, Yokohama / Seya-ku, Yokohama / Tsuzuki-ku, Yokohama / Tsurumi-ku, Yokohama / Totsuka-ku, Yokohama / Naka-ku, Yokohama / Nishi-ku, Yokohama / Hodogaya-ku, Yokohama / Midori-ku, Yokohama / Minami-ku, Yokohama / Sagamihara City / Midori-ku, Sagamihara City / Minami-ku, Sagamihara City / Chuo-ku, Sagamihara City / Ebina City / Atsugi City
Leave your kasagi renovations to Kakeru Koumuten Co., Ltd., the exterior renovation specialists!
The above is the construction menu for the renovation of the handrails for balconies and verandas.
Handrails are prone to leaks, and if left unattended, they can cause damage to the interior of the exterior walls, so it is important to repair any leaks or instability in the handrails promptly.
Kakeru Koumuten Co., Ltd. offers free estimates, so we encourage you to compare our quotes with those from other companies.
Our company specializes in exterior renovations, so if you have any concerns regarding roofs, rain gutters, or exterior walls, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
From temporary scaffolding work to roof construction and exterior renovation work, we handle everything in-house. We are confident that our costs, quality, and efficiency in exterior work are unmatched compared to other companies!
We welcome comparisons with other quotes!
You will be glad you chose us! We take every request seriously to ensure your satisfaction.
Estimates and inspections are free!
If our construction plan is inferior to that of other companies, please feel free to decline!
There are no cancellation fees or travel expenses, so please rest assured!
We look forward to your inquiries. Thank you very much.
・【Aoba-ku, Yokohama】|Exterior Cleaning|We performed a clear coating after chemical cleaning!
・【Miyamae-ku, Kawasaki】|Wall Cleaning|We conducted wall cleaning without the need for scaffolding!
・【Kohoku-ku, Yokohama】|Wall Cleaning|We conducted wall cleaning without the need for scaffolding!
・【Ota-ku, Tokyo】|Wall Cleaning|We performed wall cleaning without the need for scaffolding at a senior facility!
・【Katsushika-ku, Tokyo】|Wall Cleaning|We conducted wall cleaning without the need for scaffolding at an apartment!
・DIY Painting Plan! For those who want to try painting the roof and exterior walls themselves! We will only set up the scaffolding!
・Introducing roofing materials that cannot be painted or are not recommended! Roof painting is a no-go!
・What is the market price for roof remodeling? Types of construction and how to choose a contractor
・Introducing construction methods according to the type of roof construction and its degradation status!
・Latest! Grants and subsidies available for remodeling, and reduction systems!
・About the costs of exterior painting and sealing construction plans | This is the exterior painting construction plan!
・Remodeling store in Yokohama, Kanagawa Prefecture | What is roof overlay (roof cover method)?
Consultations via LINE 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!


