Water & Flood Damage Restoration in Ontario

Category 1 is clean water from a supply line; Category 2 (grey water) contains contaminants like from a washing machine or dishwasher; Category 3 (black water) is sewage or flood water and is a health hazard. The higher the category, the more removal, disinfection and cost involved.

It scales with the water category and the area affected. A single-room clean-water dry-out is a low four-figure job; grey-water across multiple rooms costs several times that; a sewage (black-water) or major flood restoration runs well into five figures. The clean-up is often only stage one before repairs.

Mitigation (extraction and drying) and reconstruction (replacing drywall, flooring, painting) are usually separate phases and sometimes separate contracts. Clarify up front whether your quote covers the rebuild or just the dry-out.

Ask whether they follow the IICRC S500 standard, whether they do 24/7 emergency response, how they document moisture readings, whether they bill your insurer directly, and what happens if hidden damage is found mid-job.

Surface water is the visible part; moisture wicks into drywall, subfloor, insulation and framing where you can't see it. Professionals use moisture meters to confirm materials are dry to spec — skipping structural drying is how you get mould and warped floors weeks later.

Single-room dry-outs typically run CAD 600-3,000, multi-room grey-water jobs CAD 3,000-9,500, and major floods CAD 9,000-35,000 with reconstruction.