Should I edge my Ottawa lawn before sealing the driveway?

Yes, you should definitely edge your lawn before sealing your driveway. Grass clippings, soil, and debris from lawn edges will contaminate the sealer and prevent proper adhesion to the asphalt surface.

Proper preparation is critical for successful sealcoating in Ottawa's climate. Start by edging the lawn along the entire driveway perimeter, then sweep or blow all grass clippings and debris off the asphalt surface. Any organic material left on the driveway will create weak spots in the sealer that will peel and fail within months rather than lasting the expected 2-3 years between applications.

Clean the driveway thoroughly after edging using a stiff broom or leaf blower to remove all loose material. Pay special attention to the edges where grass meets asphalt — this is where most contamination occurs. If you have an oil stain or stubborn debris, pressure wash the driveway and allow it to dry completely for 24-48 hours before applying sealer. The surface must be completely clean and dry for proper sealer adhesion.

Ottawa's freeze-thaw cycles are particularly harsh on contaminated sealer. Water penetrates beneath poorly bonded sealer and freezes, causing the coating to lift and peel in sheets. A properly applied sealer on a clean surface will flex with temperature changes and protect the underlying asphalt from water penetration, UV damage, and salt exposure throughout our brutal winters.

Apply sealer only when temperatures are above 15°C with no rain forecast for 24 hours. Late spring through early fall (May through September) provides the best conditions in Ottawa. Avoid sealing on humid days or when dew is expected overnight, as moisture prevents proper curing.

Need help finding a driveway contractor for professional sealcoating? Ottawa Driveways can match you with local paving professionals who understand our climate requirements.