Barrhaven grew fast through the 1990s and 2000s, and a lot of Longfields, Davidson Heights and Chapman Mills driveways date from that build-out. Sinking at the garage apron and heaving along the sidewalk edge are the calls we see most.
Newer streets in Half Moon Bay and Stonebridge have younger interlock, but builder-grade bases and backfill that is still settling beside the foundation cause the same dips. Catching it early means a smaller lift and relay.
Lift the sunken or heaved section, fix the base, relay the same pavers and compact them level.
Full excavation, a compacted granular base built for Ottawa frost, and pavers rated for vehicle traffic.
Clean out failed joints, refill with polymeric sand, and seal if you want colour and stain protection.
Rebuild leaning block walls and loose interlock steps with a proper footing and drainage behind them.