A clogged filter is the most common cause of poor HVAC performance — and the easiest to fix.

The short answer

• Basic fiberglass filters: every 30 days

• Pleated filters: every 60 to 90 days

• Homes with pets or allergies: every 30 to 45 days

Why it matters

A dirty filter restricts airflow, makes your system work harder and lets dust circulate through your home. Changing it regularly lowers energy use and extends the life of your equipment.

Not sure which filter you need? Ask us on your next maintenance visit.