French drain in Laval

Our French drain services in Laval

For new construction and full replacements, we install a foundation drain compliant with the Quebec Construction Code: perforated pipe laid on a bed of clean sized gravel, continuous slope of at least 1% toward the outlet, geotextile membrane over the top to keep fine soil from clogging the line over the years. On Laval sectors with a high water table, we favour corrugated BMT pipe over standard perforated PVC, because it flushes more easily under high pressure and resists the build-up of iron biofilms.

For an existing drain that is starting to slow down, high-pressure cleaning remains the most cost-effective solution. A rotating nozzle is fed in through the cleanout risers and sprays water at several thousand psi, which lifts sediment, fine roots and iron-ochre deposits without damaging the pipe. We always match the pressure to the pipe material — PVC, concrete tile, or clay tile in older homes in Auteuil or Chomedey.

A camera inspection accompanies every job. We film the inside of the drain before the work to pinpoint the problem, then again afterward as proof that the line is clear. You receive the video and a written report for the property file. If the camera reveals a collapsed pipe or one fully overrun by roots, we tell you plainly and prepare a quote for replacing the affected section.

For Laval homes without cleanout risers, permanently adding four risers at the corners of the footing transforms future maintenance. From then on, every cleaning or inspection is done through those access points, with no new excavation. In iron-ochre sectors, we pair mechanical flushing with sterilisation of the bacteria (Gallionella, Leptothrix) responsible for the orange deposit — without that step, the ochre returns within months.