Why these mistakes matter
Georgetown homes face the same long cooling seasons as the rest of the Austin area, so the HVAC system and its ductwork see heavy use. A few habits make the difference between a system that stays clean and one that needs more work than it should.
Mistake 1: Ignoring “lifetime” filters
Washable or “lifetime” filters are reusable, but they still need regular cleaning. Left in place too long, any filter loads up, restricts airflow and lets more dust past it.
Instead: follow the manufacturer’s schedule for replacing a disposable filter or cleaning a washable one, and check it more often if you have pets or after dusty work. See our air filter options for instructions on washable electrostatic filters.
Mistake 2: Cleaning on a calendar instead of evidence
There is no universal interval for home duct cleaning. The EPA does not recommend routine cleaning, only cleaning as needed, such as when there is substantial visible mold growth, vermin or excessive dust and debris being released into the home.
Instead: base the decision on an inspection of the system. Our article on how to tell if your ducts need cleaning explains what to look for.
Mistake 3: Skipping routine maintenance
Duct cleaning is not a substitute for regular care of the rest of the system. Useful routine tasks include:
- Changing or cleaning the air filter on schedule.
- Keeping registers and returns clear and dusting the grilles.
- Keeping the condensate drain clear so moisture does not build up.
- Having the heating and cooling equipment serviced by a qualified technician.
The EPA recommends that fuel-burning furnaces, stoves and fireplaces be inspected and serviced before each heating season.
Mistake 4: Attempting a DIY deep clean
Vacuuming a register cover is fine. Cleaning inside the ductwork is different: it takes equipment that keeps the system under negative pressure so dislodged debris is collected rather than blown into the house. DIY tools can also tear flex duct or loosen connections.
Instead: hire a provider that follows NADCA cleaning standards and explains the scope in writing. Our guide to what professional duct cleaning includes lists the questions to ask.

