06/09/2026
Why your Mississauga AC smells musty the second it turns on.
That damp, dirty-sock smell is usually mold and bacteria growing on the evaporator coil and in the condensate drain pan.
Moisture plus dust is the perfect breeding ground, and it often shows up after the AC has sat unused for a while.
Spraying air freshener or swapping the filter only masks it, because neither one reaches the buildup baked onto the coil.
A proper coil cleaning, a flushed drain line, and an optional UV light clear the smell at the source and keep it from coming back.
Tired of that musty blast in your Mississauga home? Book Superior HVAC Service for same-day service and ask about $50 off your repair.
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