Ask Bob HVAC and Comfort How do I maintain my ductwork?
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How do I maintain my ductwork?

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.

Related Questions

How old should my HVAC system be before replacing? What size HVAC system do I need for my home? Why is my AC not blowing cold air? Why is my furnace not turning on? How can I improve my indoor air quality?

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