Onyx AsphaltPaving contractor in Oshawa, ON

Onyx Asphalt is ranked #7 of 103 paving contractors in Oshawa by CR Score, with 61 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Onyx Asphalt is open 7 days a week. Its listed hours are Monday to Sunday, 7 AM – 6 PM. On Saturdays it is open 7 AM to 6 PM, and on Sundays 7 AM to 6 PM. Hours come from the business listing; holiday hours may differ.

Serves Oshawa and 8 towns within 40 km: Ajax, Pickering, Uxbridge, Markham, Scarborough, Richmond Hill, Aurora and East Gwillimbury. The list is based on the business's location and the usual service radius for paving. Confirm your address is covered when you call.

Onyx Asphalt has a rating of 4.8 from 61 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Onyx Asphalt on (905) 447-7121. The business is at 25 Bianca Dr, Whitby, ON L1M 2J3, Oshawa, ON. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.