Furnace Cleaning in Mississauga
The blower compartment collects more buildup than any other part of the system. It is included in every duct package we sell.
What’s included
- Blower wheel and housing cleaned
- Furnace cabinet interior vacuumed
- Return plenum cleared
- Filter slot and rack cleaned
- Filter condition assessed and size noted for you
Why it is not a separate line item
Some companies quote duct cleaning and then add furnace cleaning at the door as an extra. We consider that a false separation. The blower sits at the centre of the system and collects more buildup than any individual duct run — cleaning the branches while leaving the blower coated accomplishes very little.
So it is included in every duct cleaning package on our pricing page, at no additional charge.
What this is not
This is cleaning, not a furnace service or safety inspection. We do not test the heat exchanger, adjust gas pressure, or certify combustion — that is licensed gas-fitting work and needs a TSSA-certified technician.
If we see something concerning while the cabinet is open — cracking, soot, scorching, a rusted-through drain — we will tell you and recommend you call an HVAC contractor. We will not try to sell you the repair.
Questions
How long does a duct cleaning take?
Two to three hours for a typical Mississauga detached home, around 90 minutes for a townhouse, and 45 to 60 minutes for a condo suite.
Be sceptical of anyone in and out in under an hour on a full house. Putting the system under negative pressure and agitating each run back to the trunk takes time; a quick pass at the register openings is not a duct cleaning.
What actually happens during the cleaning?
A high-volume vacuum is connected to the trunk line near the furnace, putting the whole duct system under negative pressure so everything loosened travels toward the vacuum rather than into your rooms.
Each supply and return run is then agitated with compressed air whips or rotating brushes, driving debris back to the trunk. The furnace blower compartment and cabinet are cleaned by hand. A camera pass before and after shows you what came out.
Can duct cleaning damage my furnace or ductwork?
Not when done properly. Flexible duct and older fibreglass-lined duct do need a lighter touch — aggressive rotary brushing can tear the liner, which makes the problem permanently worse.
Tell whoever you hire if you have flex duct or interior insulation so they use soft-whip agitation instead. If a technician cannot tell you which method they are using on your system, that is a reason to keep looking.
Do I need to be home during the cleaning?
Yes, for the start and the end. Someone needs to let the technician in, show them the furnace and the panel, and confirm the vent count that sets the price.
Staying for the final camera pass is worth it — that is your one chance to see the inside of your own ducts and confirm the work was actually done.