What does an Ottawa patio contractor include versus exclude in a typical quote?

Understanding what's in — and what's not in — a patio contractor's quote is one of the most important things you can do before signing anything in Ottawa. A quote that looks competitive on paper can end up costing significantly more once exclusions surface mid-project, so knowing what to look for protects you from budget surprises.

What a Typical Ottawa Patio Quote Should Include

A solid quote from an Ottawa patio contractor will generally cover excavation and soil removal to the required depth, supply and installation of the granular base (compacted limestone screenings and clear stone), the paver or stone material itself, polymeric sand for the joints, edge restraints, and final grading to ensure proper drainage slope away from the house. Labour for all of the above, equipment rental or use, and site cleanup should also be included. If the project involves steps, a border pattern, or a specific paver layout, those should be explicitly described in the scope — vague language like "patio installation" without specifying base depth or material quantities is a red flag.

What often gets excluded — and this is where Ottawa homeowners get caught — is anything that wasn't visible during the initial site visit. Leda clay removal and disposal is a big one. If your contractor discovers that your yard sits on Ottawa's notorious Champlain Sea clay rather than stable, well-draining soil, the excavation depth may need to increase significantly and the removed material costs more to haul away. Some quotes exclude soil disposal entirely, meaning you'll be billed separately per truckload. That can add $500 to $2,000 to a project depending on volume.

Drainage solutions are frequently excluded from base quotes. If your yard has a drainage problem — and many Ottawa properties do, especially in Barrhaven, Kanata, and other areas built on heavy clay — adding a perforated pipe drainage system, catch basins, or a dry creek bed to redirect water is typically a change order rather than a standard inclusion. Ask specifically whether drainage is included and what happens if drainage issues are discovered during excavation.

Permit fees are almost always excluded from contractor quotes, even when the contractor is responsible for pulling the permit. For a raised deck requiring a City of Ottawa building permit, expect to add $200 to $600 in permit fees on top of the quoted price. Gas and electrical permits for fire features or outdoor lighting are separate again, and the licensed trades who perform that work will typically quote their own permit costs independently.

Demolition and removal of an existing patio, concrete slab, or old deck is frequently excluded unless you specifically ask for it to be included. Removing and disposing of an old interlocking patio adds roughly $3 to $8 per square foot depending on size and access. Breaking up and removing a concrete slab is more — expect $6 to $12 per square foot for concrete removal in Ottawa.

A few other common exclusions to watch for: landscaping restoration around the patio perimeter (re-sodding or replanting disturbed areas), sealing the finished paver surface (often quoted separately at $1.50 to $3.50 per square foot), retaining walls if grade changes are needed, and any work beyond the defined patio footprint such as walkways or steps that weren't explicitly scoped.

The best protection is a detailed written quote that specifies base depth in inches, compaction method, material quantities, drainage approach, and a clear list of what is and isn't included. When you're comparing multiple quotes, make sure you're comparing the same scope — a quote for a 6-inch base and a quote for a 12-inch base on the same patio are not the same job, and Ottawa's freeze-thaw conditions make that difference matter enormously. If you're ready to start collecting quotes, you can browse patio contractors through the Ottawa Construction Network directory at justynrookcontracting.com/directory to find professionals serving your area.