Buildings Increasingly Abandoning Pipe Replacement Due to Soaring Material Costs; Patent Technology Creates "Pipe Within a Pipe" Without Damaging Existing Pipes to be Exhibited

P・C・G Technica Co., Ltd. (Head Office: Nagoya City, Aichi Prefecture, President: Kaname Fujii), a company specializing in the renovation of water supply and drainage pipes, will exhibit at "Japan Build - Osaka" held at INTEX Osaka from July 2nd (Thu) to 3rd (Fri), 2026, to introduce its patented technology, the "FRP Lining Method," for renovating building pipes without demolition.

Currently, the construction industry is facing continuous price hikes for pipe materials such as steel and resin pipes, leading to frequent cases where the budget for pipe replacement work (full replacement) in condominiums and buildings significantly exceeds initial plans. In response, PCG Technica offers a solution that dramatically lowers the overall project cost by minimizing the purchase of expensive new pipe materials through "pipe renovation instead of replacement."

▲ It's okay even if there's a hole in the drainage pipe branch! ▲ Corroded pipes inside a building.

"Buildings Unable to Be Renovated" Increase Due to Soaring Building Material Costs

In addition to historical yen depreciation and rising raw material prices, labor costs are increasing due to labor shortages, and logistics costs are rising due to restrictions on overtime hours for truck drivers. Against this backdrop, construction material prices remain high.

In condominiums and buildings, the number of structures requiring pipe replacement after 30 or more years of age is increasing. However, cases where renovations must be postponed due to construction costs far exceeding initial estimates are emerging. Since pipes are located inside buildings, full replacement involves demolition of walls and floors. In addition to the cost of new pipe materials, demolition costs, waste disposal costs, and interior restoration costs are incurred. As a result, construction costs escalate.

Amidst this situation, the option of "renovation instead of replacement" is beginning to gain traction. The FRP Lining Method is a construction method that suppresses overall project costs by utilizing existing pipes to minimize the use of new pipe materials.

Three Reasons Why the FRP Lining Method Can Suppress "Costs"

1. Overwhelming Reduction in Material Usage

Instead of ordering thousands of meters of new pipes, a strong FRP membrane is formed inside the existing pipes. By minimizing the raw materials used, it avoids the risk of price fluctuations in the building materials market.

2. Cutting Ancillary Construction Costs by "Not Demolishing"

The FRP lining can be installed with minimal demolition of walls and floors. This collectively reduces labor and material costs associated with demolition, waste disposal, and interior restoration.

3. Durability is "Superior to New"

FRP excels in corrosion resistance and seismic resistance and does not rust. A single application can extend the lifespan of the pipes by over 20 years, also suppressing future maintenance costs (life cycle costs).

The "FRP Lining Method" Extends Building Life Without Demolition and Can Be Done While Occupied?

Our developed FRP Lining Method resolves these issues. This method is a patented technology that forms a new pipe internally using special cloth and resin inside existing pipes. Since it can be installed without demolishing walls, residents do not need to vacate, leading to shorter construction periods, cost reduction, and waste reduction. It is widely adopted in public facilities, housing complexes, and hospitals.

Six Features of the "FRP Lining Method"

1 Six patented construction methods that form new pipes within existing pipes and can be installed without demolishing walls.

2 Simultaneously achieves waste reduction, shorter construction periods, and cost reduction, minimizing the burden on residents.

3 No need to enter intermediate floors; installation is only on the top and bottom floors, with short water shut-off times.

4 Renews pipes with holes or cracks, improving the structural strength and seismic resistance of the building itself, thus contributing to disaster prevention.

5 Applicable to public sewage systems, it is a highly reliable technology adopted by both public and private sectors.

6 Received the Aichi Environmental Award and Nagoya Mayor's Award in 2012.

Highlights Include Examples of Deteriorated Pipes and Construction Footage! Sample Pipes and Equipment Also Introduced

At the exhibition booth, we will have sample pipes that have undergone renovation work. You can deepen your understanding of the method through demonstration videos that convey the realism of actual construction sites and introductions to the equipment used. Our staff will be stationed at the booth to answer any questions about the method and construction details, as well as to provide detailed guidance on consultations tailored to the condition of your building or condominium, and specific construction examples (building age, scale, cost estimates, work duration, etc.). On this occasion, please come and see firsthand at our booth how our groundbreaking technology solves the problem of aging social infrastructure, especially the drainage pipe issues that become apparent in the summer.

▲ Sample pipes on display ▲ Booth at the 2025 Japan Build

<Event Overview>

Exhibition Name: Japan Build

Date: July 2nd (Thu) - 3rd (Fri), 2026

Venue: INTEX Osaka

Exhibition Content: Construction samples of the FRP Lining Method, introduction of environmental impact reduction effects, case studies in condominiums and housing complexes.

Official HP: https://messe.nikkei.co.jp/ac/

* The content described is as of the time of announcement. Please note that it may differ from the latest information.

【Company Profile】

Name: P・C・G Technica Co., Ltd.

President: Kaname Fujii

Head Office Location: P・C・G Building, 1-1204 Hara, Tenpaku-ku, Nagoya City, Aichi Prefecture

TEL: 052-804-0081

Founded: March 24, 1964 (Showa 39)

Capital: 98 million yen (Group consolidated 148 million yen)

Business Description: General renovation work for water supply and drainage pipes in condominiums and buildings using patented methods.

Patent Numbers: Acquired patents include: Method for lining the inner wall of pipes (Patent No. 6039855), Pipe lining device and method (Patent No. 5236119), Centrifugal pipe lining method (Patent No. 5145478), etc., totaling 6 related pipe lining patents.