(888) 381-2953

Homeowners' pick for heating and cooling across north Florida and the Suwannee Valley

Duct Sealing

We seal leaking ductwork in homes across Florida, Georgia and South Carolina, closing the gaps at joints, boots and plenums where cooled and heated air escapes into attics and crawl spaces. You likely need it if some rooms never keep up, the AC runs long without satisfying the thermostat, or the return air smells like dust and hot attic. Call us and we will schedule a look at the duct system, check where the air is going, and tell you plainly whether sealing fixes it.

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  • Real people on the phone
  • 7 days a week
  • Quote in writing before any work

Taking calls until 5:00 PM ET

HVAC technician at work

Whether you call it duct sealing or air duct repair, the work is identical and so is the quote you approve first.

What duct sealing actually involves

We start in the attic or crawl space with the air handler running, tracing the supply trunk and every branch to find where air is pushing out. Loose boot connections, separated flex, torn insulation jackets and open plenum seams are the usual offenders. We seal with mastic and mesh tape at the joints, reattach and strap flex that has sagged off its collar, then re-insulate what we opened. A blower running while we work tells us quickly whether the leak stopped.

What we check and what we install

We check static pressure and airflow at the registers first, because weak air at a far bedroom can be a leak, a crushed run, or an undersized return. We look at the return side hard, since a leaking return pulls attic air and dust straight into the system. Sealing work usually means mastic on the plenum and boots, new collars and straps, replacement sections of flex where the inner liner is torn, and fresh insulation over anything we disturb.

How we decide sealing is the right call

Sealing is the right call when the ducts are structurally sound and the leaks are at connections, which is common in homes across the region where flex has sagged in a hot attic for years. If the inner liner is shredded, the runs are badly undersized, or rodents have opened long tears, patching is throwing good money after bad and we will say so. We would rather tell you the run needs replacing than seal around a problem you will call us about again.

The same on every visit

Written quote before any work

Covering 89 cities across Florida, Georgia, South Carolina.

A real person answers

Open 7 days, 8:00 AM to 5:00 PM ET.

Independent of every manufacturer

Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.

Duct Sealing — quick answers

Will duct sealing fix one room that stays hot?

Sometimes. If that room's run is leaking or has come loose at the boot, sealing helps a lot. If the run is too small or too long, sealing alone will not fix it and we will explain what would.

How long does duct sealing take?

Most homes take part of a day, depending on attic access, how many runs need attention, and the summer heat up there. Larger systems or crawl space work can run longer. We will give you a time frame after we look.

Can I seal ducts myself with duct tape?

Duct tape dries out and lets go in attic heat, usually within a season or two. Mastic and mesh stay put. Attic and crawl space work also puts you near wiring and sharp metal, so give us a call instead.

How it works

  1. Step 1

    Tell us the symptoms

    You describe what changed. No cold air, a breaker that keeps tripping, water near the air handler, a smell, a noise. That gives us a head start on parts before we ever leave the shop.

  2. Step 2

    We diagnose on site

    A technician checks the thermostat, the electrical side, airflow through the filter and coil, refrigerant behavior and the outdoor unit. We look at the whole system, because a frozen coil usually points somewhere else.

  3. Step 3

    You decide the repair

    We explain what failed, what it takes to fix it, and how long the rest of the system is likely to hold up. You pick the repair. We do not start work you did not approve.

Call (888) 381-2953
  • A real person answers
  • Open 7 days
  • Written quote before work starts

Why homeowners call us

  • Rural routes are normal for usWe drive long stretches between calls and we plan for it. Trucks carry the common heat pump and air conditioner repair parts so a diagnosis does not turn into a second trip on a hot afternoon.
  • Heat pumps and sandy soilMost homes we visit run a heat pump, and sand, lawn clippings and pollen pack the outdoor coil fast. We clear it, check the defrost side in winter, and show you what we found before we close it up.
  • Well water housesHomes on well water bring their own quirks, from pump-driven electrical noise to hard water on drain lines and condensate pans. We know where those systems clog and where the slow leaks hide.
  • Heating repair tooCold snaps in this region are short and hard. We do heating repair and heater repair on heat pumps, strip heat and furnaces, so one crew handles your system in July and again in January.
  • All major brands, gas & electricOne independent crew for Carrier, Trane, Lennox, Goodman, Rheem and more.
  • Straight answersIf a system is not worth repairing, we say so, often right on the phone.

Duct Sealing

Part ofDuctwork Repair
QuoteWritten, upfront
Gas & electricBoth
Open7 days

Ready to book duct sealing?

Describe the system and your ZIP. The written quote comes before any work.

  • A real person answers
  • Open 7 days
  • Written quotes
  • All major brands
  • Gas & electric
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