Removing Cigarette Smoke Odour from Ontario Homes
Cigarette smoke odour is one of the most persistent and difficult cleaning challenges Ontario homeowners and landlords face. The odour — caused by nicotine and tar particles depositing on every surface in a home (walls, ceilings, floors, upholstery, HVAC ducts, insulation) — cannot be eliminated with surface cleaning alone in homes with years of heavy smoking.
Why Smoke Odour Is Difficult
Smoke particles are submicron — they penetrate porous materials (drywall, wood, grout, fabric, insulation) at the molecular level. Surface cleaning removes the superficial layer of deposit but not the absorbed molecules. This is why painting over smoke-stained walls with primer and fresh paint — sealing the surface — is often more effective than attempting to clean heavily contaminated walls.
Cleaning Approach for Moderate Smoke
- Walls and ceilings: Wash with a TSP (trisodium phosphate) solution or a strong degreaser — smoking residue is an oily film. Two-pass: wash then rinse
- Hard floors: Degrease and mop thoroughly
- Upholstery and carpet: Professional steam cleaning extracts smoke particles from fabric — standard vacuuming doesn't
- HVAC: Replace all air filters; professional duct cleaning may be necessary in heavily smoked homes
When Paint Is the Answer
For homes with years of heavy smoking: seal all walls and ceilings with a shellac-based primer (Zinsser BIN is the standard professional product for smoke odour sealing) before painting. This seals the smoke deposits behind the paint layer and prevents them from bleeding through. Without sealing, smoke odour bleeds through latex paint in a matter of weeks.
Ontario Context
Under Ontario's RTA, smoke odour remediation beyond normal wear and tear is a recoverable cost from tenants at the LTB — but documentation of the smoke-free tenancy agreement and the condition change is required.