How Much Does Foundation Crack Repair Cost in Ottawa?

Published price ranges for Ottawa

These figures come from HomeStars’ Ottawa foundation repair page, which lists contractor pricing for the area. They are published ranges for context and are not Aelia quotes. We checked them in October 2026.

• Foundation crack repair: about $500 to $1,500 per crack, depending on length, depth and material used
• Carbon fibre strap installation: about $400 to $700 per strap, depending on wall height and the number of straps
• Underpinning and foundation lowering: about $10,000 to $30,000, depending on the depth of excavation and the number of sections that need support
• Labour: about $75 to $150 per hour, though most contractors price repairs by the job

Why the cause matters more than the crack

A hairline crack from normal curing and a crack from a moving wall are very different problems. Repairing the surface of a crack that keeps moving usually brings it back. A good contractor starts by finding out why the foundation cracked, then repairs it to suit.

Ottawa’s freeze and thaw cycles, water that collects against the foundation and settling can all play a part. That is why an assessment comes before a price.

Signs to have a foundation looked at

Not every crack is serious, but these are worth a professional assessment:

• Horizontal cracks, or walls that bow or lean inward
• Cracks that are growing, or wider at one end
• Stair-step cracks in block or brick
• Water seeping through a crack, especially in spring melt
• Doors and windows that start sticking, or gaps opening around frames
• Floors that slope or crack

If the cracks look structural, an engineering assessment is worth getting before any contractor quotes a repair.

What moves the price

• Number, length and depth of the cracks
• Whether the wall is moving, bowing or leaking
• Repair method: injection or sealing, carbon fibre reinforcement, wall bracing or underpinning
• Access to the wall, for example finished basement walls that must be opened up
• Excavation if the repair has to be done from the outside
• Fixing the cause, such as drainage or grading, as well as the crack

How to compare quotes

Ask each contractor to put in writing:

• What is causing the problem, in their assessment
• Which method they are using and why
• Whether the repair addresses leaks as well as the crack
• What is included for excavation, backfill and restoration
• What warranty applies and what it covers

Get your foundation assessed

Aelia Construction and Design offers free foundation assessments across Ottawa, Kanata, Barrhaven, Nepean and Orleans. Fixing moisture and foundation problems first protects any finishing work you plan afterwards.