Your HVAC works hard to heat and cool your air. Then leaky ducts dump 20-40% of it into your attic before it ever reaches your rooms. Here's how to fix it.
Deploy the Duct Sealing KitMost duct leaks happen behind walls and in attics where you can't see them. A 10% leak rate means your system runs 11% longer to compensate — costing $150-$400/year.
Leaky ducts create negative pressure that pulls in hot attic air, dust, and insulation fibers. Your rooms feel stuffy and your air quality drops.
If one room is always too hot or cold, duct leaks are often the cause. Sealing balances airflow so every room gets its share.
Mastic sealant and foil tape on accessible ducts takes 2-4 hours and costs under $100. Professional testing with a duct blaster finds the hidden leaks.
From DIY mastic and tape to professional duct sealing services — choose the right fix for your home.
Mastic sealant + foil tape on accessible joints. 2-4 hours, under $100.
~$80
Save $150-$400/yr. ROI in 3 months.
Duct blaster test finds all leaks. Professional sealing with Aeroseal or hand-sealing.
~$450
Save $300-$600/yr. ROI in 9-15 months.
New sealed ductwork with manual J load calculation. Best for older homes with major leaks.
~$3,500
Save $500-$1,000/yr. ROI in 4-7 years.
Use these next steps to confirm the bigger diagnosis, route into the right kit, or get a faster whole-home plan.
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