French Drain in Terrebonne

Our French drain services in Terrebonne

New French drain installation in Terrebonne covers both fresh construction and the full replacement of drains that have reached end-of-life. We excavate the foundation perimeter down to the footing, lay a bed of clean sized gravel, set the perforated pipe at a continuous slope of at least 1% toward the outlet, wrap it in geotextile membrane, and connect either to an interior sump pit with a submersible pump, or directly to the municipal storm sewer where the bylaw allows it. Every new install is done to the Quebec Construction Code.

High-pressure cleaning becomes necessary when the drain clogs with clay sediment, fine roots from mature trees, or iron-ochre build-up. Our hydroflush equipment pushes water at up to 4,000 PSI through the drain via existing cleanout risers, or through access we create for the job. In the clay-heavy sectors of Lachenaie we recommend a preventive flush every 5 to 8 years to keep slow sedimentation from eventually choking flow.

Before and after each intervention, we film the inside of the pipe with a specialised camera. The camera inspection confirms the exact cause, whether it is a collapsed drain, a root intrusion, an iron-ochre deposit or simple sediment. It also lets us verify that the cleaning restored clean drainage along the full length. You get both the video and the written report.

In areas where the water table runs high, iron ochre becomes a recurring concern: that orange deposit sticks to the inside of the pipe and chokes it off in a few years if nothing is done. We apply an iron-ochre removal protocol that combines high-pressure hydroflush, suitable chemical treatment, and installation of extra cleanout risers so the system can be monitored periodically without another excavation. On new installs at risk, we specify BMT corrugated pipe up front rather than standard perforated PVC.