Guide · updated 2026-10-30

Dryer vent cleaning: cost and fire risk.

What it costs, how often, the warning signs, and what the fire data shows.

What it costs

National guides put dryer vent cleaning at $80–185, about $130 on average (HomeGuide). In the Toronto area, houses run about $175–250 and condo or roof exits $250–389 (GTA Dryer Vent Guide).

UpkeepGoOttawa (CAD, before HST)Greater Boston (USD)
Main-floor wall exit, run up to 15 ft$189$179
Second-floor or roof exit, or a run over 15 ft$269$259

The fire risk

The U.S. Fire Administration reports that failure to clean was the leading factor in home clothes dryer fires from 2018 to 2020 (31%). Its earlier study estimated 2,900 residential clothes dryer fires a year in the US, more frequent in fall and winter and peaking in January. NFPA’s study of fires involving washers and dryers found 92% involved dryers.

Signs it’s time

  • Clothes need more than one cycle to dry.
  • The dryer or laundry room gets unusually hot.
  • The outside flap doesn’t open when the dryer runs.
  • Lint builds up around the outside hood.

How often

Once a year for most homes, as part of regular maintenance. The CPSC also advises replacing plastic or foil accordion duct with rigid or semi-rigid metal duct.

Sources

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