Trenchless pipe lining: how it works

A cracked or root-infested sewer pipe no longer means tearing up your property. Pipe lining, also known as relining, builds a brand-new pipe inside the old one, through the existing access points.

The process, step by step

1. HD camera inspection. We document the condition of the pipe: cracks, offset joints, roots, reverse slopes. This inspection is what confirms the pipe is eligible for lining.
2. High-pressure cleaning. The pipe is cleared of deposits, roots and obstructions so the liner bonds perfectly.
3. Liner insertion. A flexible liner saturated with epoxy resin is inserted into the pipe from a manhole, a drain or an indoor access point, with no trench.
4. Curing. The resin hardens in place and forms a rigid, smooth, watertight wall with a service life of about 50 years.
5. Video verification. A second inspection confirms the result, with proof to back it up.

Why it is almost always the best choice

• No excavation: driveway, slab, landscaping and parking stay intact.
• Speed: most residential jobs are finished in a single day.
• Cost: generally lower than traditional replacement once restoration work is factored in.
• Versatility: storm, sanitary and combined sewers, from 2 to 18 inches in diameter, and even pool lines.

When lining is not enough

A fully collapsed pipe or a major reverse slope may call for a spot repair by excavation. That is exactly why everything starts with a camera inspection: you only pay for the solution your pipe actually needs.

At JFA Plomberie, we are accredited Formadrain installers, a pipe lining process made in Québec, and we serve Montreal, Laval and the entire North Shore.