Durable, code‑compliant drainage systems
French drain installation and repair
Protect your foundation with an effective drainage system that relieves hydrostatic pressure and prevents water infiltration.
Effective drainage for long‑lasting, healthy foundations
The French drain is a crucial element in protecting your foundation. This perimeter drainage system captures and diverts groundwater before it reaches your foundation walls, preventing infiltration, excessive moisture, and structural damage. Over time, French drains can become clogged by sediment accumulation, root growth, or material deterioration. A defective drain can no longer perform its protective function, putting your foundation at risk. Our experts assess your drain's condition and recommend appropriate solutions: cleaning, partial repair, or complete replacement.
Benefits of a Functional French Drain
Water Protection
Effective water diversion away from your foundation
Infiltration Prevention
Significant reduction in basement water risk
Structural Stability
Protection against soil erosion and settling
Healthier Air
Reduced moisture and mold prevention
Our Installation Process
Inspection and Planning
Complete assessment of your existing drainage and new system planning
Excavation
Careful excavation around your foundation perimeter down to the footing
Polyurea spray‑applied waterproofing
Surface cleaning, primer application, and spray‑applied polyurea application.
Drain installation
Installation of a perforated drain, placement of a geotextile membrane, installation of clean 3/4 stone, and installation of inspection cleanouts.
Backfilling and final grading
Backfilling and final grading are completed to restore the site and ensure proper slopes that direct water away from the foundation.
Why Choose Fondations Gagnon Leduc
Proven Expertise
Years of experience in French drain installation and repair in the Montreal area.
Modern Equipment
Specialized machinery for precise and efficient excavations with minimal property impact.
Quality Materials
We only use durable materials and rigid drains that meet standards.
Guaranteed Work
We offer competitive warranties on our installations for your protection.
Protect Your Foundation with an Effective French Drain
Contact us for an inspection of your existing drain or to discuss installing a new drainage system.