How much is crack injection per crack in Nepean?

Crack injection is about $500 to $1,500 per crack in published Ontario contractor pricing, with one Ottawa-area source quoting from around $300 for epoxy work.

A quote should spell out a few things worth checking before you agree to anything:

• which material is being used (the Ottawa-area price pages list epoxy and polyurethane; ask the contractor to explain the choice for your wall)
• whether the price covers surface preparation and any patching after injection, or just the injection itself
• what the written warranty covers, how long it runs, and whether it transfers to a buyer
• whether the work is being done from inside, outside, or both, since that affects what the contractor needs access to

Crack injection is not named on either of the City of Ottawa's permit lists, so ask the City's Building Code Services before the work starts. "Structural foundation repairs" are on the permit list, so ask the contractor upfront what happens if the crack turns out to be part of a structural problem.

We found no Ontario or City of Ottawa licence for waterproofing contractors, so the credential to ask about is whether a licensed plumber does or signs off any plumbing work if the repair touches a drain or pipe. Ask for their insurance details in writing, and if you are hiring rather than doing the work yourself, ask the contractor to confirm they have WSIB coverage.

The most useful question to put to any contractor before you commit: ask them to show you, in writing, exactly what the warranty covers.