The clearest signs your air ducts need sealing are uneven temperatures from room to room, dusty registers and surrounding surfaces, high humidity in summer, high energy bills, and HVAC equipment that runs longer than it should. A measured duct-leakage test gives a clear answer in about an hour.
Signs of leaky ducts
- Some rooms much hotter or colder than others
- Heavy dust around supply registers
- Whistling or hissing near duct joints
- High summer humidity despite a working AC
- Steadily climbing energy bills
- Visible disconnected sections in attics, basements, or crawlspaces
We measure and quantify leakage during an air duct inspection, then recommend Aeroseal or manual duct sealing as appropriate.
