Where can I source natural stone for patio projects in Ottawa?

Ottawa is actually well-positioned for natural stone sourcing, with several strong options ranging from local quarries to specialty landscape supply yards. The Ottawa-Gatineau region sits on the edge of the Canadian Shield and close to significant limestone and granite deposits, which means locally quarried stone is readily available and often more affordable than in cities further from geological sources.

For locally quarried stone, the Ottawa Valley and eastern Ontario region produce excellent limestone, including buff, grey, and charcoal varieties well suited to patio use. Rideau Valley stone — a grey limestone — is a classic Ottawa choice that blends naturally with the region's architectural heritage. Gatineau Hills suppliers offer granite and gneiss in various colours that have obvious freeze-thaw resistance given their origin. Heading further west, Owen Sound and Wiarton in Bruce County are major sources of premium limestone flagstone, widely available through Ottawa-area dealers. Eramosa limestone, quarried near Hamilton, is another Ontario stone that shows up frequently at local yards.

The major landscape supply yards in the Ottawa area carry a wide selection of both local and imported stone. Yards along March Road in Kanata, along Mitch Owens Road in the south end, and several locations in the east end stock flagstone, cut stone, and natural pavers in various types and price ranges. Most of these yards allow you to walk through their stock and hand-select pieces, which is worth doing with natural stone since colour, thickness, and texture vary from pallet to pallet. Visiting in person beats ordering sight-unseen every time.

For imported stone — Brazilian quartzite, Indian sandstone, Portuguese limestone — specialty stone importers in the Ottawa and Montreal area carry these products. Montreal, being a major port city, has a concentration of natural stone importers, and the two-hour drive means Ottawa contractors frequently source from there. Some Ottawa landscape supply yards also stock imported varieties, though the selection tends to be more limited than what you would find at a dedicated stone importer.

Pricing varies significantly by stone type and source. As a rough guide for Ottawa in 2026, expect local limestone flagstone at $8-15 per square foot for material, local granite at $12-20, imported sandstone at $10-18, and premium quartzite at $18-35. These are material-only costs — delivery and installation are additional. Most yards charge separately for delivery, typically $100-250 depending on distance and quantity.

One practical tip: order 10-15% more material than your measured area to account for cutting waste, irregular shapes, and having spare pieces for future repairs. Natural stone varies between batches, so getting a close colour match years later can be difficult if you need replacements.

If you want help navigating stone selection and sourcing for your specific project, connecting with an experienced patio contractor through the Ottawa patio directory can save considerable time — most established installers have preferred suppliers and can often get better pricing than retail.

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Looking for experienced contractors? The Ottawa Construction Network connects Ottawa homeowners with qualified professionals:

• Homeupgraders
• JC Carpentry
• L.L. Renovation
• Stone and fern
• The Deck Store Inc