Trelleborg Acquires Sewer and Drainage Pipe Rehabilitation Market Leader

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Press release

Trelleborg Group has, through its business area Trelleborg Industrial Solutions, signed an agreement to acquire an operation within sewer and drainage pipe rehabilitation. The German-based operation is part of the privately owned company, Innovative Sewer Technologies (I.S.T), and specializes in the manufacture of machinery, robotics, and liners used in trenchless pipe repairs.

This acquisition complements Trelleborg’s current trenchless pipe repair offerings with new technology and materials. The operation’s head office and manufacturing facilities are located in Bochum, Germany, with sales offices in Europe and the Americas, and a global network of independent distributors.

Andreas Renulf, President of the Trelleborg Seals & Profiles business unit, says: “Part of our strategy for growth is to extend our capabilities in trenchless pipe repairs globally. This acquisition strengthens Trelleborg’s position in the pipe repair market, with the addition of Ultraviolet (UV) light curing technology and robotics for cured-in-place pipe repairs. We see synergies in both sales and production, with the operation complementing Trelleborg’s existing offering with new technology and solutions, and a strong focus on R&D. This acquisition enables us to enter markets we previously have not had a presence in, specifically large diameter pipes and glass fiber reinforced pipes (GRP).

“We expect this acquisition to be finalized in the 4th quarter of 2022, with the operation integrated into the Trelleborg Industrial Solutions business area, within the Trelleborg Seals & Profiles business unit.”

Jörg Vogt, Managing Director of Innovative Sewer Technologies says: “We are really excited to join Trelleborg. We differentiate ourselves by offering our customers advanced technological capabilities and high-quality products, something that will be enhanced through this acquisition. I am confident we will continue to thrive within Trelleborg.”

Aging pipe infrastructure that results in increased risk of both undesirable leakage, inflow and infiltration, is a growing problem in large parts of the world and can cause unnecessary costs and environmental damage. During heavy rainfall inflow and infiltration can lead to increased water flow that requires treatment at a specialist sewage treatment plant.

This results in additional CO2 emissions and associated costs. If the water flow is too large, the treatment plant may be bypassed, with excess water discharged into natural water courses such as lakes, rivers and the ocean, resulting in environmental contamination.

Trenchless pipe rehabilitation is an alternative to the traditional “open, cut, and replace” method of repairing pipes. It allows the faster in-situ rehabilitation of pipes with a pipe-within-a-pipe solution, removing the need for the damaged pipe to be removed from the ground for repair.

For more information on Trelleborg’s trenchless pipe rehabilitation solutions, go to:


For more information, please contact:
Andreas Renulf, President Trelleborg Seals & Profiles
Tel: +46 704 288 003  


About Trelleborg Group

Trelleborg is a world leader in engineered polymer solutions that seal, damp and protect critical applications in demanding environments. Its innovative solutions accelerate performance for customers in a sustainable way. The Trelleborg Group has annual sales of about SEK 34 billion (EUR 3.34 billion, USD 3.95 billion) and operations in about 50 countries. The Group comprises three business areas: Trelleborg Industrial Solutions, Trelleborg Sealing Solutions and Trelleborg Wheel Systems. The Trelleborg share has been listed on the Stock Exchange since 1964 and is listed on Nasdaq Stockholm, Large Cap.