How do I DIY replace a single damaged paver in my Ottawa driveway?

Replacing a single damaged interlock paver is one of the most straightforward DIY driveway repairs Ottawa homeowners can tackle. You'll need basic tools and can typically complete the job in 30-60 minutes on a dry day.

Start by removing the damaged paver carefully. Use two flat pry bars or large screwdrivers to lift the paver straight up — avoid prying against adjacent pavers which can chip their edges. If the paver is tightly locked in place by polymeric sand, you may need to scrape out some of the joint sand first with a narrow putty knife or oscillating tool. Work slowly to avoid damaging surrounding pavers, especially if they're older and more brittle from Ottawa's freeze-thaw cycles.

Check the bedding sand level beneath the removed paver. The sand should be level with the surrounding bedding sand and about 25mm below the final paver surface. If the area has settled (common in Ottawa due to frost heaving and base movement), add coarse bedding sand and level it with a screed board or the back of a rake. Lightly compact the sand with a hand tamper or the end of a 2x4. The bedding sand should be slightly damp but not wet — if it's too dry, it won't compact properly; if it's too wet, the new paver may settle unevenly.

Ottawa's clay soils and freeze-thaw cycles often cause isolated paver settling, especially around driveway edges where water collects and frost penetrates deeper. If you're replacing multiple pavers in the same area, this suggests a larger base stability issue that may require professional attention. However, single paver replacement usually indicates localized settling or impact damage from snow removal equipment.

Place the new paver and check for proper alignment. The replacement paver should sit flush with surrounding pavers — no more than 3mm high or low. Tap it into place with a rubber mallet, checking alignment frequently. If the paver sits too high, remove some bedding sand; if too low, add sand underneath. The paver should feel solid and not rock when you step on it.

Refill the joints with polymeric sand. Sweep polymeric sand into all joints around the new paver, ensuring they're completely filled. Use a stiff brush to work sand into narrow joints. Sweep excess sand off the paver surfaces — any sand left on the surface will stain when activated. Lightly mist the joints with water to activate the polymeric sand, following the manufacturer's instructions. Avoid over-watering which can wash out the sand or cause white haze on darker pavers.

When to call a professional: If you're replacing more than 3-4 pavers in the same area, if the bedding sand is consistently low indicating base settlement, if adjacent pavers are also loose or uneven, or if you discover the base material beneath the sand has washed out or settled significantly. These conditions suggest broader drainage or base stability issues that require excavation and proper base repair — problems that will worsen through Ottawa's winter freeze-thaw cycles if not addressed properly.