When a basement wall leans inward or a corner settles, the concrete itself is not the problem. Water pressure, an undersized footing, or missing reinforcement is. Laval Concrete finds what caused the failure, then rebuilds the structure to stop it. We pair repair with waterproofing because water is usually the root. Every job starts with a free diagnosis.
Why Concrete Foundation Repair Starts with Diagnosis
A wall that bows inward, a corner that has settled, horizontal cracks running across the basement, these are all visible signs. But they are not the problem itself. The problem is what caused them: groundwater pushing on the wall from outside, a footing that was never deep enough, or concrete that was poured without enough rebar to handle the load above.
Filling a crack without addressing the water pressure behind it is like mopping a floor while the tap runs. We identify which of the three causes is at work, then specify the right fix. Sometimes that is crack sealing for small surface issues. Sometimes it is underpinning to extend a footing that failed. Sometimes it is exterior waterproofing to stop the water.
The free assessment tells you exactly what is happening and what needs to happen next. No guessing, no upsell, just the structural truth.
Recent work
The repair sequence
How Concrete Foundation Repair Gets Done in Laval
Assess the failure mode
We look at crack patterns, wall tilt, interior signs like sticking doors or sloped floors, and exterior soil conditions to determine whether the cause is water, footing failure, or structural shortfall.
Excavate and expose
For exterior repairs, we dig down to the affected section of the foundation wall, confirming the depth and extent of damage before specifying the structural fix.
Reinforce and rebuild
Structural repair means adding rebar and concrete to failed walls, injecting cracks with structural-grade sealant, or extending footings through underpinning to handle the load.
Waterproof and backfill
Repaired areas get waterproofing membrane, drainage is installed or upgraded, and backfill is placed carefully so the repair cures without new pressure.
The pairing that works
Why Repair and Waterproofing Go Together
A foundation fails for a reason. In most cases, that reason is water. Groundwater seeps through cracks, builds pressure against the wall, and pushes it inward or causes it to settle. Fixing the crack without stopping the water means the same failure will happen again in a few years.
We treat repair and waterproofing as a single job. The repair addresses the structural damage. The waterproofing stops the water that caused it. Crack injection handles smaller surface cracks. Underpinning handles deeper structural problems. All three pair with drainage upgrades.
Diagnosis, structural repair, waterproofing pairing and underpinning for failing foundations in Laval.
Watch for stair-step or horizontal cracks, bowing or leaning walls, doors and windows that suddenly stick, floors sloping noticeably, or recurring damp spots in the basement. Any of those is worth a free assessment, even if you are not sure what it means.
Often yes. Small surface cracks get crack repair with sealing or injection. Larger structural cracks may need wall reinforcement or even underpinning depending on the cause.
Repair plus waterproofing usually will. Most foundation repairs pair with waterproofing upgrades because the cause of the structural failure was usually the water that is leaking. Both get addressed.
Anywhere from a few days for localised work to a few weeks for major structural repairs with excavation and waterproofing. The timeline is part of the written quote so you know up front.
Most exterior repairs leave the inside of the basement looking the same. Interior reinforcement may be visible as added structure on the wall. We walk you through what each fix will look like before committing.
Homeowner reviews
What Laval Homeowners Say About Their Foundation Repairs
Diagnosed the cause as water pressure plus an undersized weeping tile. Fixed the drainage and the wall. Two springs since with no recurrence. Repair, not patch.
F. J.
Laval
★★★★★
Bowing basement wall properly reinforced and the soil pressure addressed outside. Wall is straight, basement is dry, the house feels solid again.
I. N.
Longueuil
★★★★★
Honest that part of the foundation needed underpinning, not just repair. Did both as needed, explained exactly why. No upsell, just the right fix.
O. R.
Terrebonne
★★★★★
Sticking doors went back to working normally after the repair settled. They had explained why that would happen and it did. Confidence inspiring.
K. S.
Repentigny
From the blog
Concrete Guides & Articles
Practical reading on planning, finishes and caring for concrete in Laval.
Describe what you are seeing: cracks, bowing, sticking doors, damp spots. We will assess it free, identify the cause, and provide a written quote with no obligation.
