How often should HVAC condenser coils be cleaned to improve efficiency and extend equipment life?

For most homeowners, you should clean your condenser coils at least once a year.

If you live in a dusty area, have pets, or especially if you have cottonwood trees nearby, I’d recommend cleaning them twice a year. Cottonwood trees are brutal on condenser coils — that fluffy white stuff clogs them up fast.

Best times are right before spring cooling season and again mid-summer.

Clean coils will save you money on your electric bill and make your unit last a lot longer.