Free on-site estimate
Every quote starts with a real measurement.
What's included
Every job runs on the same standard.
Written quote within 24 hours
Itemized, no surprises.
Proper drainage behind the wall
Prevents hydrostatic pressure failure.
Engineered base course
Carries lateral pressure, not just weight.
No subcontractors
Same crew start to finish.
Our Process
How it works
1
Tell us your address
Takes 30 seconds.
2
We measure on-site
Free, no obligation.
3
Written quote in 24 hours
Itemized, no surprises.
4
We build and clean up
Full site cleanup on completion.
What matters most
Drainage behind the wall
A retaining wall without proper drainage is fighting Toronto clay's water retention every winter – that's how walls bulge and fail.
Engineered base course
The base under a retaining wall carries more lateral pressure than a flat surface – it's built differently.
Built for the long grade change
Caps, block selection, and setback are planned for your specific slope.
The part of a retaining wall you don't see
Interlock Experts Toronto puts as much thought into what's behind a retaining wall as what you see in front of it. A wall built without proper drainage is holding back water along with the soil – the resulting hydrostatic pressure is what causes walls to bulge, lean, or fail years after installation looked perfectly clean.
Sized to the actual grade change
A retaining wall's base and block selection depend on how much grade it's actually holding back. We assess the real grade change on-site and size the base, block, and any required setback to match.
Frequently asked questions
Why do retaining walls fail in Toronto?
Most failures trace back to missing drainage behind the wall – clay soil holds water, and without a way for it to escape, hydrostatic pressure pushes the wall out over time.
Do I need a permit for a retaining wall?
Depends on height and location – taller walls or ones near a property line may need permits or engineering.
Can a bulging wall be repaired instead of rebuilt?
Sometimes, if the block units are intact and only the drainage or base has failed.