Foundation Repair in Ottawa
Our Services
Foundation Repair Services in Ottawa
TOXX Enterprises provides foundation repair and concrete restoration services for residential and commercial properties across Ottawa and surrounding areas.
Foundation issues can become more serious when left unresolved. We assess the visible damage, surrounding conditions and project requirements before recommending the appropriate approach.
Foundation Problems We Address
- Foundation cracks
- Damaged or deteriorating concrete
- Openings requiring repair
- Water-related foundation damage
- Localized foundation deterioration
- Concrete patching and restoration
- Repairs associated with excavation or renovations
- Specialized structural repair preparation
Understanding the Cause
A visible crack or damaged area does not always explain the full problem. Foundation damage may be connected to moisture, drainage, movement, previous construction work or deterioration over time. TOXX reviews the conditions around the affected area to help determine the most practical repair approach.
Exterior Foundation Access
Some repairs require excavation to properly expose the foundation. TOXX can manage the excavation, preparation and associated drainage or waterproofing work as part of the same project.
Residential and Commercial Foundation Work
and specialized foundation repair requirements. For issues requiring engineering or additional professional review, the necessary specialists can be coordinated before work proceeds.
Other Services
Signs your foundation needs repair
Not every crack is an emergency — but some are, and knowing the difference saves money. Here’s what we see in Ottawa homes:
- Vertical hairline cracks in poured walls are common and often just shrinkage. They still need sealing before water finds them.
- Horizontal cracks or stair-step cracks in block walls point to soil pressure pushing the wall inward. These need a professional look.
- Bowing or leaning walls. The wall is moving. This is the sign most worth acting on quickly.
- Doors and windows that stick, sloping floors, or gaps where the wall meets the ceiling — possible settlement.
- Water where it shouldn’t be. Cracks are entry points; if you’re seeing moisture, the crack is already failing.
If you’re unsure, that’s what a free inspection is for. We’d rather tell you a crack is harmless than sell you a repair you don’t need.
How we repair foundations
Crack repair. We seal cracks from the inside or outside depending on the cause — and when a crack is letting water through, the repair is paired with basement waterproofing so you’re not fixing the same problem twice.
Damage tied to movement or deterioration. Some problems need more than a surface fix. When damage is connected to soil pressure, moisture, or deterioration around the foundation, we excavate to expose the wall and repair it properly. It’s slower than patching — and it’s why the repair lasts.
Structural work. For walls that need more than repair — reinforcement, rebuilding, or preparation for structural work — our structural reinforcement team handles the heavier jobs. And when an issue needs engineering review or another specialist, we coordinate that before work starts, not after.
Patching a structural problem is how people end up paying twice. We repair it properly the first time.
Why this is an Ottawa problem
Ottawa is built on Leda clay — a sensitive marine clay that expands when wet and shrinks when dry, pushing and pulling on foundation walls year after year. Add a four-foot frost line, aggressive freeze-thaw cycles, and spring melt, and foundations here take more punishment than in most Canadian cities.
Older neighbourhoods carry the history: pre-1960 homes with stone or block foundations in the Glebe, Centretown, and Hintonburg, and mid-century poured walls in Nepean and Alta Vista that are now 60+ years old. None of this means your foundation is doomed — it means problems here have known causes and known fixes, and we’ve been fixing them for over 30 years.
How a foundation repair job runs
- Free inspection. We come out, look at the cracks or movement, and tell you what’s actually wrong — in plain language.
- A clear quote. One price for the repair, no vague line items. If we find something unexpected mid-job, you hear about it before we touch it.
- The repair. Many repairs are completed in a single visit; bigger structural jobs take longer. Either way, you get a real timeline up front.
- Waterproofing where it matters. Most foundation repairs should include waterproofing the repaired area — we do both, so you’re not calling a second company. We serve Ottawa and surrounding communities, including Kanata, Nepean, Orléans, Barrhaven, Stittsville, Manotick, and Navan.
Concrete cutting for new openings and access is also handled in-house when a repair calls for it.
Foundation repair FAQs
How do I know if my foundation crack is serious?
Vertical hairline cracks are usually shrinkage and just need sealing. Horizontal cracks, stair-step cracks, bowing, or cracks that are widening or leaking are structural signs — get them inspected. When in doubt, a free inspection settles it.
How much does foundation repair cost in Ottawa?
It depends on the scope — sealing a crack costs far less than a structural repair. Any honest answer starts with an inspection, which is why ours is free. Call 613-277-7070.
Will you have to dig up my entire foundation?
Usually not. Many repairs are done from inside, and exterior work is targeted to the damaged section. We excavate only what the repair actually requires.
How long does foundation repair take?
It depends on the repair. Many crack repairs are finished in a single visit; structural work takes longer. We give you the timeline before we start — not after.
Does home insurance cover foundation repair?
Usually not for gradual deterioration — most policies treat that as maintenance. Sudden, accidental damage can be an exception. Check your policy, and if you need documentation of what we find for a claim, we can provide it.
Why are Ottawa foundations so prone to problems?
Leda clay soil that swells and shrinks, a deep frost line, hard freeze-thaw cycles, and a large stock of older foundations. It’s a known combination with known fixes.
Foundation crack repair in Ottawa
Most foundation repair calls we get are about cracks — and most cracks are repairable without major structural work. The key is knowing which kind you’re dealing with: vertical hairline cracks from concrete shrinkage, or horizontal and stair-step cracks from soil pressure. We identify the type at a free inspection and repair it appropriately — and when a crack is letting water through, the repair is paired with waterproofing so you’re not fixing the same problem twice.
How much does foundation crack repair cost in Ottawa?
It depends on the length and type of crack, whether it’s leaking, and whether the repair is done from inside or outside. Call 613-277-7070 — the inspection and estimate are free.
Can a foundation crack be repaired from the inside?
Many can. Interior crack repair works for typical shrinkage cracks that aren’t under active soil pressure. When a crack is structural or the waterproofing has failed outside, we excavate and repair from the exterior. We recommend the right method at the inspection — not the most expensive one.
Will a repaired crack leak again?
Not if the cause is addressed. Sealing the crack without dealing with the water source is a temporary fix — that’s why we pair crack repairs with waterproofing of the repaired area wherever water is the issue.
How long does crack repair take?
Many crack repairs are completed in a single visit. You’ll get a clear timeline with your free estimate.