How do I maintain my ductwork?
By Bob Millaway, South Jersey Community Expert & REALTOR®
Inspect ductwork annually for visible leaks, gaps, or disconnected sections. Seal leaks with mastic sealant or metal tape, not duct tape. Insulate ducts in unconditioned spaces like attics and crawl spaces. Change air filters regularly to keep ducts clean. Have ducts professionally cleaned every 3 to 5 years if there is visible mold, excessive dust, or vermin contamination.
Why It Matters
Leaky or dirty ductwork can waste 20 to 30 percent of heating and cooling energy and circulate dust and allergens throughout your home.
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