Short answer: duct cleaning is worth it when there is something in the ducts to remove: construction or renovation dust, years of buildup, pet hair, pests, or a musty smell when the furnace starts. It is not worth it as a routine yearly service in a clean, well-filtered system. The honest test is to look inside before you pay.
When duct cleaning is worth it
- After a renovation. Drywall dust and sawdust are pulled into the return ducts while the furnace runs.
- In a new build. Construction debris often ends up in the ducts before move-in.
- When you move into a resale home. You do not know what the previous owners left behind.
- With pets that shed. Hair and dander collect in the returns.
- After pests. Droppings and nesting material need to come out.
- When dust blows from the vents or dust returns soon after you clean.
- When it has been many years and you can see buildup inside the registers.
When it is probably not worth it
If your home is fairly new, has no pets, has never been renovated, you change a good furnace filter on schedule, and the ducts look clean when you lift a register, cleaning can wait. A good company will tell you that rather than sell you a cleaning you do not need.
What results to expect
Homeowners usually notice less dust settling on furniture, fewer musty smells when the furnace starts, and better airflow from vents that were partly blocked. Duct cleaning is not a medical treatment, and nobody can promise it will cure allergies or cut your energy bill by a specific amount. It removes a reservoir of dust and debris, and that is the benefit.
What a proper cleaning includes
- Inspection of the vents and furnace
- Protection for floors and walls at every opening
- Rotating brushes in every supply and return run
- Strong extraction that pulls debris out of the system
- The trunks, cold air return and furnace blower area
- Registers cleaned and refitted, and the dryer vent on request
Ducts should always be cleaned dry and mechanically. Steam and water have no place in ductwork, because moisture can lead to mould.
Frequently asked questions
How do I know if my ducts are dirty?
Remove a floor register and shine a flashlight inside. Look for grey dust on the duct walls, pet hair, debris or anything that should not be there. Check a return grille too, since returns are usually dirtier than supplies.
Does duct cleaning help with allergies?
It removes dust, pollen and pet dander that have built up inside the system. Many people notice a difference, but results vary and it is not a medical treatment. A good furnace filter and regular vacuuming matter just as much.
Will duct cleaning lower my energy bill?
Clean ducts and a clean blower help the system move air the way it should. Savings vary from home to home, so be wary of anyone promising a specific number.
How often should ducts be cleaned?
Inspect every couple of years and clean when there is buildup. Read how often to clean your air ducts.
How much does it cost?
It depends on the number of vents, the size of the home and add-ons. Read what duct cleaning costs in Ontario.
Is $99 duct cleaning worth it?
Very low prices usually cover only a few vents, with extra charges added once the crew is inside. Ask for a written quote for the whole system.
Can I clean my own ducts?
You can vacuum the registers and the first few inches of each duct. Cleaning full runs takes rotating brushes and extraction equipment.
Not sure if your ducts need it? UltiClean inspects first and gives you a straight answer. See air duct cleaning or call 647-676-0576.
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