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French Drain Installation in Montreal
A French drain (also called a weeping tile system) is one of the most effective ways to prevent water from accumulating around your home’s foundation. In Montreal, where heavy rainfall, melting snow, and freeze–thaw cycles are common, a properly installed French drain is essential to protect your basement from flooding, leaks, and moisture damage.
At Tross Construction, we provide professional French drain installation and replacement services, ensuring your home stays dry and structurally sound all year round.
Keep Water Away from Your Foundation with a French Drain
A French drain reroutes groundwater away from your home using a perforated pipe surrounded by gravel. This prevents water from building pressure against your foundation and eliminates many basement moisture problems.
What a French Drain Does
Reduces hydrostatic pressure
Redirects groundwater away from the home
Prevents foundation leaks
Stops basement flooding
Protects against soil erosion
Helps prevent mold and mildew
A properly installed French drain is one of the most long-lasting drainage solutions for Montreal homes.
Interior vs. Exterior French Drains
We install both types depending on your home’s needs.
Exterior French Drain (Weeping Tile)
Installed outside the foundation, this is the most effective long-term solution.
Best for:
Older homes
Foundation leaks
High groundwater levels
Preventing water before it enters the home
Benefits:
Stops water at the source
Protects foundation walls
Reduces soil pressure
Long lifespan
Interior French Drain
This system is installed inside the basement around the perimeter of the floor.
Best for:
When exterior digging is not possible
Quick and affordable waterproofing
Managing internal leaks and seepage
Benefits:
Fast installation
Effective for moderate water problems
Works with sump pumps
Interior and exterior systems can also be combined for maximum protection.
How French Drains Work
A French drain works by providing an easy path for water to flow away from your home.
System Components
Perforated drainage pipe
Gravel trench
Filter fabric
Drainage board (for exterior systems)
Sump pump (for interior systems)
Waterproofing membranes (optional)
How It Protects Your Home
Groundwater enters the gravel trench → flows into the perforated pipe → moves safely away from your foundation.
This removes water pressure and prevents moisture problems before they start.
Our French Drain Installation Process
At Tross Construction, we follow a detailed and reliable installation process to ensure long-lasting performance.
1. Drainage Inspection & Assessment
We evaluate:
Groundwater levels
Soil condition
Foundation health
Existing drains
Moisture or seepage
2. Excavation & Preparation
For exterior drains, we excavate around the foundation to the footing level.
For interior drains, we remove a strip of basement floor.
3. Foundation Cleaning & Inspection
We clean the wall and repair cracks as needed.
4. Installation of Perforated Drain Pipe
We install a high-quality, perforated pipe surrounded by washed gravel for maximum flow.
5. Filter Fabric Installation
The fabric prevents soil and debris from clogging the system.
6. Exterior Waterproofing (Optional but Recommended)
For maximum protection, we can install:
Membranes
Drainage boards
Protective coatings
7. Sump Pump Installation (Interior Drains)
Interior systems connect to a sump pump to remove collected water.
8. Backfilling & Landscaping
We carefully backfill the area and restore landscaping as needed.
9. Final Testing & Cleanup
We ensure proper water flow and clean the job site thoroughly.
Why Choose Tross Construction for French Drain Installation?
Experienced Waterproofing & Drainage Specialists
We understand Montreal’s soil conditions and drainage challenges.
High-Quality Materials
We use premium perforated pipes, gravel, and membranes to ensure long-term durability.
Precise & Safe Installation
Work is performed by trained excavation and waterproofing professionals.
Customised Solutions
Every home requires a unique drainage strategy — we tailor our approach to your property.
Transparent Pricing & No Hidden Fees
You receive a clear, detailed estimate before work begins.
Proven Results
Our drainage systems significantly reduce moisture problems and basement leaks.
When Should You Replace a French Drain?
Older homes in Montreal often have outdated clay weeping tile systems that fail after 20–40 years.
Signs You Need a New French Drain
Basement leaks or seepage
Standing water around foundation
Mold or musty smell
High humidity in basement
Foundation cracks
Soil erosion
If your home is over 30–40 years old, a drainage inspection is highly recommended.
Additional Drainage Services
Weeping Tile Replacement
We upgrade old or clogged weeping tiles with modern perforated systems.
Foundation Grading
Corrects the slope of soil to direct water away from the house.
Sump Pump Installation
Adds extra protection during heavy rainfall.
Exterior Membrane Installation
Boosts waterproofing performance for exterior drains.
Frequently Asked Questions
Exterior drains: 3–7 days
Interior drains: 1–3 days
A well-installed system can last 25+ years.
We work carefully to minimise disruption and restore affected areas.
In most cases, yes — especially when combined with a sump pump system.
Cost depends on drainage length, depth, access, and soil conditions.
We provide detailed estimates after inspection.
Protect Your Home with a French Drain System
A professionally installed French drain is one of the best investments you can make to protect your home from leaks and water damage. At Tross Construction, we deliver long-lasting drainage systems designed for Montreal’s unique climate.
Contact us for a free drainage inspection
Serving Montreal, Laval, South Shore, and nearby areas
Strength you can see. Quality you can trust.
Licence RBQ #5841923501
Tross Construction Inc. is a company specializing in interior and exterior renovation projects, masonry, concrete and everything related to finishing work.
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