Keep Your AC Running Like New: Easy Tips for Year-Round Efficiency

7. Monitor and Seal Duct Leaks

Leaks in the ductwork can lead to significant energy waste—up to 30% of air can be lost in poorly sealed ducts. Inspect exposed ducts in attics, basements, or crawl spaces for gaps, holes, or disconnected sections. Use mastic sealant or aluminum foil tape (not duct tape) to seal small leaks. For more comprehensive sealing, especially in hidden ducts, hire a professional for an energy audit and pressure test.