About Ottawa Concrete Pros
Ottawa's winters are hard on concrete. The National Research Council's digest on concrete in winter says surface scaling occurs mainly on pavements, sidewalks and other horizontal surfaces and is most severe where de-icing salts are used, and clay and silt soils heave when they freeze. The 2024 Ontario Building Code answers with a standard for the concrete itself: at least 32 MPa at 28 days and a water-to-cement ratio no higher than 0.45 for garage floors and all exterior flatwork, and protection for 72 hours when a pour happens below 5 °C. A contractor's quote rarely explains those numbers, so this site does.
The rules are specific to Ottawa. Since March 1, 2026 the City requires a hardscaping contractor licence for businesses that install or alter concrete pads, patios, walkways, steps, driveways and retaining walls, with insurance, written contracts and the City's Landscaping Education Guide for every client. The walkway strip at the sidewalk is City right of way under the Access By-law, which replaced the Private Approach By-law on April 8, 2026, and two zoning by-laws now apply together. Cement (Concrete) Finisher is a non-compulsory trade in Ontario. None of that is explained on a quote, so we explain it here.
Ottawa Concrete Pros is a matching service, not a concrete company. We do not pour, finish or repair concrete and we do not employ tradespeople. You tell us about your job, and we send your request to local concrete contractors listed in the Ottawa Construction Network directory. They reply to you by email. We do not screen or verify them, including their City licence, and we say so, which is why every page tells you what to check yourself.
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