Home health · 70 cities · checked September 28, 2026
Mold and air quality testing across Canada
Air or surface sampling when you suspect hidden mold, paired with a hunt for the moisture that feeds it.
Typical cost: About $300–$600 for a sampling visit
Choose your city
Each city page covers local prices and rules, the climate and housing stock that shape the job, and who does the work there. The bar under each city shows its houses by construction era, oldest first.
British Columbia
- Vancouver 62% built before 1991
- Surrey 39% built before 1991
- Burnaby 58% built before 1991
- Richmond 49% built before 1991
- Abbotsford 52% built before 1991
- Coquitlam 55% built before 1991
- Kelowna 50% built before 1991
- Langley 41% built before 1991
- Saanich 78% built before 1991
- Delta 74% built before 1991
- Nanaimo 54% built before 1991
- Kamloops 62% built before 1991
- Victoria 84% built before 1991
Ontario
- Toronto 81% built before 1991
- Ottawa 56% built before 1991
- Mississauga 57% built before 1991
- Brampton 33% built before 1991
- Hamilton 69% built before 1991
- London 66% built before 1991
- Markham 40% built before 1991
- Vaughan 30% built before 1991
- Kitchener 60% built before 1991
- Windsor 73% built before 1991
- Oakville 44% built before 1991
- Richmond Hill 32% built before 1991
- Burlington 63% built before 1991
- Oshawa 67% built before 1991
- Greater Sudbury 78% built before 1991
- Barrie 40% built before 1991
- Guelph 54% built before 1991
- Whitby 39% built before 1991
- Cambridge 60% built before 1991
- St. Catharines 83% built before 1991
- Milton 23% built before 1991
- Kingston 67% built before 1991
- Ajax 42% built before 1991
- Waterloo 54% built before 1991
- Thunder Bay 84% built before 1991
- Brantford 72% built before 1991
- Chatham-Kent 82% built before 1991
- Clarington 45% built before 1991
- Pickering 60% built before 1991
- Peterborough 74% built before 1991
Quebec
- Montréal 86% built before 1991
- Québec City 70% built before 1991
- Laval 67% built before 1991
- Gatineau 58% built before 1991
- Longueuil 76% built before 1991
- Sherbrooke 60% built before 1991
- Lévis 60% built before 1991
- Saguenay 75% built before 1991
- Trois-Rivières 68% built before 1991
- Terrebonne 50% built before 1991
- Saint-Jean-sur-Richelieu 60% built before 1991
before 1961 1961–1990 1991–2000 2001 or later · Statistics Canada, 2021 Census
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