Interlock repair & installation, Ottawa

Installed interlock (material and labour) typically runs from $22/sq ft, which lines up with what most Ottawa homeowners report paying for a properly based job — lower quotes are usually missing base prep, edge restraints, or polymeric sand. Lifting and re-laying existing pavers costs less than a full new install.

Interlock is only as good as the base underneath it, and a sunken or heaved section means water is sitting in or moving through that base — often from missing edge restraints or a base that wasn't compacted deep enough. Re-laying the surface without fixing the base just resets the same problem.

In most cases, yes. We lift and sort the existing pavers, fix the base and drainage underneath, then re-lay with your original stone wherever it's still in good shape — a real cost saving over buying all-new material, and it keeps the look consistent with the rest of your property.

Usually, yes — it means the polymeric sand in the joints has washed out or was never properly installed, letting seeds take root. Re-sanding with polymeric sand and proper compaction solves it; if it comes back within a season, the joints likely weren't swept and activated correctly the first time.