in_liner is the largest manufacturing plant in Poland producing liners for trenchless rehabilitation of sewer networks, located in Gdów (Małopolskie Voivodeship) and operating since 2019.

The company specializes in ECR fiberglass liners used for the renovation of pipelines with diameters from DN150 to DN2000. With an annual production capacity of around 300 km, in_liner supplies products used in major infrastructure projects across Poland and Europe.

The modern 2,600 m² facility is equipped with advanced production lines for fiberglass processing and resin impregnation, enabling efficient and high-quality manufacturing. Standard orders are completed within approximately two weeks, with express production available in as little as three days.

in_liner ensures full customer support, including organized transport and temperature-controlled delivery in winter conditions, providing a reliable end-to-end service for trenchless infrastructure projects.

Visit us at www.in-liner.pl