Stop heating the attic.
Leaky ducts push conditioned air into attics and crawl spaces. Sealing and repairing them restores airflow, evens out rooms and cuts wasted energy.
- Inspection: Attic, crawl space and visible runs
- Sealing: Mastic at seams and connections
What it is, and why it matters.
Ducts run through unconditioned spaces, and over the years joints separate, flex ducts tear, connections loosen and rodents or tradesmen damage lines. A leaky system loses a meaningful share of its air before it reaches a room, pulls dusty air in through return leaks and makes the equipment work harder.
Nashville HVAC finds and seals duct leaks across Middle Tennessee. We inspect accessible ducts, test where practical, seal seams with mastic, replace damaged sections, reconnect loose runs and insulate exposed lengths. Use our Duct Leak Lab to see how leakage changes what reaches your rooms.
Four things done right.
Targets the leaks
We find where air escapes and seal those spots, not just the obvious ones.
Uses mastic, not tape
Duct mastic lasts where cloth tape dries and peels.
Restores airflow
Reconnected and repaired runs get air back to the rooms.
Cleaner air
Sealed returns stop pulling attic and crawl space air into the house.
From first call to duct repair and sealing.
- 1
Inspect
We examine ducts in the attic, crawl space and basement.
- 2
Plan the repairs
We list leaks, damage and disconnected sections and quote the work.
- 3
Seal and repair
We seal seams with mastic, replace damaged sections and reconnect runs.
- 4
Verify
We check airflow at registers and confirm the improvements.
Duct Repair and Sealing across Middle Tennessee.
We do this work for homes and businesses from Nashville, Franklin and Murfreesboro to Gallatin, Hendersonville, Lebanon and Columbia.
Duct Repair and Sealing: common questions
How do I know if my ducts leak?
Signs include uneven rooms, dust at registers, high bills, ducts that sweat in the attic and a system that runs constantly. A professional inspection finds the specifics.
Is duct tape okay for sealing ducts?
Standard cloth duct tape tends to fail with heat and age. Mastic or approved foil tape is the right material.
How do I get an estimate for duct repair and sealing?
Fill in the form or call or text 615-431-3789. Photos of the equipment and its label usually give us what we need, and we send a written price. Larger jobs start with a short visit.
Ready to talk about duct repair and sealing?
A short visit or a few photos, and a written price. A real person calls back promptly.