Our Services
French Drain Installation and Replacement in the Laurentians and on the North Shore
A French drain comes down to one question, whether your house already has one and whether it is still doing its job. We install a new drain where none was ever laid, and we replace one when the pipe is crushed, clogged with iron ochre or full of roots. Based in Sainte-Sophie, we cover the Laurentians, Laval and Lanaudière.
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Installation or Replacement: How We Decide
A missing drain and a dead drain leave you with the same damp basement, but not the same job and not the same invoice. Our free on-site diagnosis, booked within 24 hours, exists to tell the two apart.
Installing a New French Drain
We call it an installation when the property never had a foundation drain, or when a garage, an addition or an extension is being added to the building. The classic case is a house built before 1950, since the requirement has only applied to new construction since 1955. The trench is then dug into undisturbed soil, which makes laying the pipe and setting the slope simpler.
Replacing an Existing French Drain
Replacement becomes the answer when the pipe is severed, crushed, sagging or blocked to the point where cleaning no longer brings it back. We pull out the old drain pipe, remove the debris and the clogged stone, then lay a complete system that meets code. Budget one or two extra days on site compared with a new installation.
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A 25-Year Transferable Warranty on Every French Drain
Every French drain we install or replace is covered by a 25-year transferable warranty. Transferable means it follows the property: the day you sell, the buyer inherits it, and a 25-year warranty argues well at the negotiating table.
Behind that commitment sit RBQ licence 5770-6285-01, more than 30 years of expertise, more than 1,300 satisfied clients and more than 350 projects completed in 2024, residential and light commercial alike. Our family business with an active RBQ licence works out of Sainte-Sophie.
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What a French Drain Carries, and What It Will Never Carry
A French drain, also called a foundation drain, a perimeter drain or a footing drain, is a perforated pipe laid on the foundation footing, wrapped in clear stone and a filtering geotextile membrane. Older Canadian documents and many contractors call the same system a weeping tile. It captures groundwater, rainwater and meltwater, then carries it away by gravity to a storm sewer, a ditch or a dry well.
That drainage system is what protects the foundation when the water table rises. Our guide on how a French drain works walks through the full water cycle.
A French drain never carries sewage. It is the most common misconception among homeowners, and several websites keep it alive: wastewater leaves through a separate sanitary system. Confusing the two leads to bad diagnoses and to connections that do not meet code.
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Signs You Need to Install or Replace Your French Drain
A drain never complains directly. It sends signals, indoors and out.
- A damp basement, a musty smell or visible water infiltration at the base of the walls
- Efflorescence and mould, those whitish and dark marks on the concrete
- Infiltrations that come back every spring at snowmelt, sometimes as far as a flooded basement
- Water pooling or standing against the foundation days after a rainfall
- New foundation cracks, a sign that hydrostatic pressure is building
If you do not even know whether your house has a weeping tile, start with our guide on how to tell whether a house has a French drain. It covers the visible clues, the documents to check and what a camera reveals.
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How We Install or Replace Your French Drain
The full job runs five to nine days for a single-family home, depending on the perimeter, the access and the weather.
01/ Utility Locates and Excavation
A locate request to Info-Excavation comes before the first bite of the excavator, so we do not hit a water main, a gas line or an electrical service. The trench goes down to the footing, with sloped walls per safety rules. One to two days.
02/ Laying the Pipe, the Stone and the Geotextile
The 4-inch rigid perforated drain sits on the footing, never higher. It gets at least 6 inches of 3/4 clear stone and a geotextile membrane that blocks sediment. The slope is set at roughly 1% toward the outlet. One day.
03/ Membranes on the Foundation Wall
The wall gets its protection while the trench is open: a liquid rubberized elastomeric membrane, then the Delta-MS dimpled membrane, a drainage board that guides water down to the drain. This is the cheapest moment there is to waterproof a foundation. One day.
04/ Connection, Backfill and Finishing
The connection runs by gravity where the topography allows, otherwise to a catch basin or a sump pit fitted with a submersible sump pump. We backfill in lifts, permeable material near the wall, and we correct any negative grade. One to two days.
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Our Commitments
Why choose Solution ProFissure?
Superior Quality
Professional work meeting the highest standards to ensure the strength and durability of your home.
Fast Estimate 24/7
Callback and free estimate within 24 hours, available 7 days a week.
Transparency
Detailed quotes and clear communication throughout the work. No surprises on the bill.
Personalized Approach
Solutions tailored to your specific situation for lasting results and maximum satisfaction.
On-Time Delivery
Start dates and deadlines always met. Efficient work to minimize disruptions.
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The Service Life of a French Drain
A foundation drain is not forever. Knowing where yours stands keeps you from paying twice.
01A Service Life of 25 to 40 Years+
- Average lifespan of 25 to 40 years, around 30 years in Quebec
- Longevity driven by the quality of the pipe and stone, the care taken during the original installation, and how often it's maintained
- A weeping tile in a 1980s house has already used up most of its life expectancy
02Iron Ochre, the Number One Killer in Quebec+
- Iron in the soil reacts with oxygen and bacteria, forming a gelatinous orange deposit common across the Laurentians and Lanaudière
- Iron ochre coats the pipe and causes a complete blockage within a few years
- On an at-risk property, cleaning becomes an annual job and replacement arrives sooner
03Roots, Crushing and Settling+
- Tree roots hunt for water and enter through the perforations, knitting into a fibrous plug
- A poorly supported flexible pipe gets crushed by the backfill
- Settling clay soil robs the drain of its slope
- All three defects show up on camera, and none is fixed by a simple cleaning
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Our Projects
Every project reflects our commitment to excellence and attention to detail.
Have Your Drain Inspected Before the Next Spring
A free on-site estimate, booked within 24 hours, tells you whether your French drain needs a cleaning, a targeted repair or a full replacement.
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Cleaning, Camera Inspection and Access Chimneys
Before we replace, we verify. A camera inspection travels down the pipe and shows the real condition of the drain, how far the clogging has gone and where the slope has failed.
It goes in through an access chimney, the 4-inch vertical pipe that rises to grade, often called a cleanout. If your house does not have one, we add them during the work, and every future maintenance visit becomes possible without excavating. The detail on hydro-jetting sits in our guide on how to clean a French drain.
Quebec Standards for a Compliant French Drain
A foundation drain has been mandatory in Quebec on all new construction since 1955, under the National Building Code as adopted by the Quebec Construction Code. The standard is precise, and the APCHQ adds its best practices on top.
- A perforated pipe with a minimum diameter of 100 mm (4 inches)
- A layer of crushed stone at least 150 mm (6 inches) deep
- Placement below the frost line, 4 to 5 feet depending on the region, out of reach of freeze-thaw cycles
- Discharge to a storm sewer, a ditch or a dry well
- A continuous drainage slope toward the outlet
The discharge point is decided before excavation, based on the topography and the municipal by-law: some towns allow a connection to a combined sewer, others prohibit it. We confirm that compliance with the planning department before we dig.
French Drain or Waterproofing: Two Jobs, Two Roles
The line is simple. The French drain moves the water held in the soil away from the base of the foundation, while foundation waterproofing makes the wall itself watertight over its full buried height.
Both go into the same trench and they complement each other, but neither replaces the other. A watertight wall on saturated soil still takes hydrostatic pressure, and a drainage membrane on a porous wall still lets moisture migrate through. When cracking has reached the structure, our foundation repair and replacement service steps in before the drain goes down.
How Much a French Drain Costs in Quebec
In Quebec in 2026, a French drain replacement runs between $100 and $250 per linear foot, or roughly $330 to $820 per linear metre, in Canadian dollars. On a perimeter of 120 to 165 feet, the invoice lands around $12,000 to $20,000 before taxes.
These are order-of-magnitude figures: depth, soil type, obstacles and access all move the total. The breakdown sits in our guide to French drain cost, and every free quote we hand over itemizes the work.
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French Drain Installation in the 15 Cities We Serve
Every area has its own soil and its own drainage constraints. We install and replace French drains in Sainte-Sophie, Saint-Jérôme, Mirabel, Blainville, Saint-Eustache, Saint-Colomban, Saint-Hippolyte, Sainte-Anne-des-Plaines, Sainte-Thérèse, Saint-Sauveur, Saint-Lin-Laurentides, Laval, Rosemère, Terrebonne and Mascouche, and throughout the surrounding Laurentians, Laval and Lanaudière. Call us with your address and we will tell you what the ground does in your neighbourhood.
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Frequently Asked Questions About French Drain Installation and Replacement
01
Rigid Pipe or Flexible Pipe for a French Drain?
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Rigid, every time it is possible. Corrugated flexible drain goes in faster, but it crushes more easily under the backfill and its corrugations hold iron ochre. Our installations and our replacements use 4-inch rigid pipe.
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Exterior or Interior Drain: Which One Should You Choose?
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The exterior drain, laid at the footing around the perimeter, remains the reference solution because it intercepts water before it reaches the wall. The interior drain, installed under the basement slab and tied to a pump, is for cases where excavation is impossible or where a weakened exterior system needs backup.
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Can Only One Section of the Drain Be Replaced?
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Sometimes, yes. When the camera shows a localized break in an otherwise sound pipe, a targeted repair solves the problem for a fraction of the cost. When the clogging is widespread or the slope is gone along several sides, only a full replacement holds up.
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What About a Rubble Stone Foundation?
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The stone foundations of century homes call for a lighter touch: the wall is fragile, we excavate in sections, and the mortar has to be repointed before any membrane goes on. We handle these jobs regularly, using a liquid membrane that conforms to the irregular surface.
A French Drain to Install or Replace? Let's Talk
More than 1,300 satisfied clients, more than 350 projects completed in 2024, RBQ licence 5770-6285-01 and a 25-year transferable warranty on every drain. Free on-site assessment within 24 hours, anywhere in the Laurentians, Laval and Lanaudière. Call (514) 623-9155.