Why resale-home duct cleaning is a common request
When you move into a resale home, you usually do not know the last time the duct system, return vents or furnace area were cleaned. Dust, pet hair, renovation debris and odours from previous occupants can sit inside vents and returns, especially if the home had recent painting, flooring or basement work.
What to check before calling
Look inside a floor return with a flashlight, check dust around supply vents, inspect the furnace filter and notice whether rooms smell stale when the furnace or AC starts. These signs do not prove every duct is dirty, but they help decide whether a cleaning visit is worth discussing.
Which GTA homes ask for this most
Resale homes in Brampton, Mississauga, Toronto, Markham, Oshawa, Ajax and Whitby often request duct cleaning before unpacking fully. It is also common for landlords preparing a rental between tenants.