Concrete driveways in Ottawa have to survive 100+ freeze-thaw cycles per year, road salt, snowplow scraping, and heavy SUV loading. Most premature failures (cracking, scaling, spalling, heaving) come from contractors who skip the basics: proper base prep, correct mix design for cold-climate Ottawa exposure (5,000+ PSI air-entrained), control joints at the right spacing, and proper curing. This page covers what to insist on, 2026 Ottawa concrete pricing, decorative options, and how to vet a concrete contractor.
Plain broom-finish concrete: $14-$19/sq ft installed (typical 600 sq ft driveway $8,400-$11,400). Exposed aggregate: $18-$26/sq ft ($10,800-$15,600). Stamped concrete (single colour, basic pattern): $22-$32/sq ft ($13,200-$19,200). Premium stamped (multi-colour, complex pattern with borders): $28-$42/sq ft ($16,800-$25,200). Add-ons: full removal of old driveway $4-$7/sq ft, base regrading and gravel rebuild $3-$5/sq ft, drainage trench or French drain $45-$85/linear ft, sealing $1.25-$2.25/sq f...
Mandatory for Ottawa freeze-thaw: 32 MPa minimum concrete strength (most Ottawa pros pour 35 MPa for driveways), 5-8% air entrainment, max 0.45 water-cement ratio, 100mm (4 inch) minimum slab thickness (125mm for vehicle-loaded sections), 150mm minimum compacted granular A base over geotextile fabric, control joints every 3-4m (typically saw-cut within 24 hours of pour), 38mm minimum cover over rebar/wire mesh, and a 28-day cure with proper curing compound. Skipping any of these is why so many O...
(1) Wrong mix — non-air-entrained concrete is the #1 failure cause; you'll see surface scaling and spalling within 2-3 winters. (2) Inadequate base — anything less than 150mm of properly compacted gravel will heave. (3) No control joints (or wrongly spaced) — random cracking within first 2 years. (4) Pouring in cold weather without proper protection — concrete cures incorrectly below +5°C. (5) Driving on it before 7 days (10 days for heavy vehicles). (6) Using rock salt or calcium chloride in ye...
Stamped concrete imitates flagstone, slate, brick, or cobblestone at lower cost than real pavers and with fewer joints to fail. Ottawa-popular patterns: random slate, ashlar slate, herringbone brick, cobblestone fan. Colour applied two ways: integral colour (mixed into concrete, lasts longest) or colour hardener with antiquing release (more dimensional appearance, requires re-sealing every 2-3 years). Exposed aggregate (more durable than stamped for high-traffic driveways) shows the natural ston...
Minimum 2% slope away from house (1 inch per 4 feet). On flat Ottawa lots, a French drain or trench drain along the garage edge prevents meltwater pooling. Avoid concrete driveways with no expansion gap between driveway and garage slab — heaving will crack the garage floor. For driveways longer than 60 feet, consider a swale or surface drain mid-driveway to prevent ice sheets in spring.
Ask for: (1) WSIB clearance and $2M+ liability, (2) recent (last 24 months) Ottawa references — visit at least 2 in person to see freeze-thaw performance, (3) written mix spec on the quote (MPa, air entrainment %, slump), (4) cold-weather pour protocol if pouring in shoulder seasons, (5) control joint spacing plan, (6) base prep depth and material spec, (7) minimum 5-year written workmanship warranty (better firms offer 10 years). Avoid quotes that don't specify mix MPa or base depth — these are...
2026 Ottawa pricing: plain broom-finish $14-$19/sq ft, exposed aggregate $18-$26/sq ft, stamped $22-$42/sq ft. Typical 600 sq ft driveway: plain $8,400-$11,400, stamped $13,200-$25,200. Removal of old driveway adds $4-$7/sq ft.
Walk on at 24 hours, light vehicles after 7 days, heavy vehicles and full strength after 28 days. Pours after mid-October require thermal blankets to maintain proper cure temperature — without them, the concrete will be weak and scale-prone.
Concrete: 30-40 year lifespan, higher upfront cost, no resealing needed for utility (but yes for decorative). Asphalt: 15-25 year lifespan, 40-60% lower upfront cost, requires resealing every 3-5 years. For pure cost and long-term value, concrete wins. For shorter ownership horizons or tight budgets, asphalt is fine.
32-35 MPa concrete with 5-8% air entrainment and 0.40-0.45 max water-cement ratio. The air entrainment is what protects against freeze-thaw scaling — Ottawa contractors who pour non-air-entrained mix are setting up surface failure within 3 winters.
Do not use rock salt, calcium chloride, or magnesium chloride for the first 24 months. Use sand for traction only, or non-chloride de-icers (calcium magnesium acetate). After 2 years (and after sealing), occasional chloride salt use is acceptable but still accelerates surface wear.