The majority of our work is with Cured-in-Place-Pipe lining (CIPP). Click here to learn more about CIPP.

Our "Certified Installers" are professionally trained and ready to rehabilitate any pipe, conduit, or underground HVAC duct system you may have.

Single & Multi-Story Commercial Buildings
Schools & Universities
Government Buildings & Complexes
Hospitals & Nursing Facilities
Residential & Multi-family Developments
Municipal Infrastructures

Providing Non-Invasive Options for Extending the Life of Pipe, Conduit & Underground Ducts
Flow-Liner® is one of the world`s leading pipe, conduit and HVAC lining system companies. Our success is driven by our people and their commitment to get results the right way by operating responsibly, executing with excellence, applying innovative technologies and capturing new opportunities for profitable growth. We are involved in virtually every facet of the pipe and conduit lining industry. We specialize in developing and manufacturing lining systems and materials for utilities, gas & oil, water & sewer, processing, HVAC, electrical, telecommunications, refinery, mining, residential, commercial and industrial industries.

Company Roots
We trace our beginnings to 1976 as a plumbing service and drain cleaning franchise located in Zanesville, Ohio. In 1987, this company expanded into pipe excavation and replacement. Due to all of the issues with excavation equipment, trench shoring and worker safety, a new company was formed in 2001 as an alternative to excavation and pipe replacement. That company was and is now, Flow-Liner® Systems, Ltd. specializing in trenchless non-invasive products and systems.

Technology Serving Multiple Industries
We`re focusing on technologies that improve our ability to find, develop and manufacture products and systems for multiple industries. In 2001, we specialized in the sewer and drain pipe lining industry. In 2007, we introduced the only NSF-61 certified lining system for small diameter potable water piping available in the US market. In 2009, Flow-Liner became the first liner manufacturer for the telecommunication and electrical conduit industry. Its brand name conduit liner was utilized in The White House utility renovation project, as well as a project for the US Navy in 2012. By 2017, CIP-Duct for underground HVAC rehabilitation was developed. Flow-Liner® now produces products and installation systems for a multitude of industries. We will continue to stay on the cutting edge of technology and innovation now and in the future.

Environment and Safety
As a company and as individuals, we take great pride in caring for the communities where we live and work. Since there is little or no excavation involved with the installation of our products, and the surrounding environment is not disturbed, Flow-Liner`s non-invasive pipe and conduit lining products are environmentally friendly and safe. The reuse and extension of the pipe or conduits life is also a plus for the environment.

Flow-Liner - Sizing Tool