How much for asphalt crack-band repair in Ottawa?

Asphalt crack-band repair in Ottawa typically costs $2 to $5 per linear foot for professional hot-pour crack sealing, with most residential driveways requiring $150 to $500 in crack repair work depending on the extent of cracking.

Crack-band repair refers to the professional method of cleaning out cracks and filling them with hot-pour rubberized crack sealant that remains flexible through Ottawa's brutal freeze-thaw cycles. This is fundamentally different from the cold-pour crack filler you can buy at Canadian Tire — hot-pour sealant is heated to 180-200°C and applied with specialized equipment, creating a permanent repair that moves with the asphalt as temperatures swing from -30°C in January to +35°C in July.

Ottawa's extreme climate makes proper crack sealing critical. With over 50 freeze-thaw cycles per winter, water penetrates cracks, freezes and expands by 9%, then thaws and allows even more water to enter. Each cycle widens the crack until what started as a hairline crack becomes a major structural failure. Cracks wider than 5mm allow water to reach the granular base beneath the asphalt, causing base erosion and eventual pothole formation.

Professional crack-band repair involves routing out loose material from the crack (creating clean, uniform edges), heating the rubberized sealant to proper application temperature, and filling the crack slightly proud of the surface. The material is then squeegeed level and allowed to cure. Quality hot-pour sealants like Deery or Crafco products remain flexible at -40°C and resist tracking at +60°C surface temperatures.

Timing matters significantly in Ottawa. Crack sealing should be done in late spring (May-June) or early fall (September) when temperatures are consistently above 15°C. The asphalt surface must be completely dry — any moisture in the crack will cause the hot sealant to foam and create a poor bond. Most contractors recommend crack sealing before sealcoating, as the crack filler needs to cure for 24-48 hours before sealer application.

DIY cold-pour crack filler costs $8-15 per tube and covers about 15-20 linear feet of typical cracks, but it's a temporary solution that typically fails within one Ottawa winter. Professional hot-pour repair lasts 3-5 years and should be considered essential maintenance for any asphalt driveway over 5 years old in Ottawa's climate.

Need help finding a driveway contractor for crack sealing? Ottawa Driveways can match you with local paving professionals who understand Ottawa's climate challenges.