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Top-rated independent heating and cooling across North Texas and the Metroplex

Duct Sealing

Duct sealing closes the leaks in your supply and return ducts so the air your system paid to cool actually reaches your rooms. We do this work for homeowners across Texas, Oklahoma and Louisiana, usually in attic duct runs where tape has dried out and joints have pulled loose. You need it when some rooms never keep up, when the attic feels like it is getting the cold air, or when dust keeps coming back right after you change the filter. Call us and we will inspect the duct system before quoting anything.

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Taking calls until 5:00 PM CT

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Search for it as duct sealing or air duct repair and you land in the same place: one visit, one written quote.

What Duct Sealing Actually Involves

We start in the attic or crawlspace and follow the duct runs from the air handler out to every boot. Leaks show up at plenum connections, at takeoff collars, at flex duct joints where the inner liner has slipped, and at register boots where they meet the ceiling drywall. We seal those with mastic and mesh tape rather than cloth duct tape, since mastic stays put through summer attic heat. Insulation gets pulled back, the joint gets sealed, then the insulation and outer jacket are closed up again.

What We Check And Install

Before sealing we look at the whole picture: static pressure across the air handler, return sizing, filter restriction and whether the supply trunk was ever sized for the square footage it feeds. Plenty of 1990s homes in the region have one undersized return doing all the work, and sealing alone will not fix that. We seal joints, replace crushed or torn flex sections, add mastic at the plenum, reattach fallen boots and re-insulate exposed runs. If a return needs to be added or enlarged, we tell you that up front.

How We Decide Sealing Is The Right Call

Sealing is the right call when the equipment is sound and the delivery is not. Signs we look for include a big temperature difference between the room nearest the air handler and the farthest bedroom, ducts sweating in the attic, high static pressure, and dust or fiberglass fibers around the registers. If the duct system is brittle, mold-stained or badly undersized, patching it is throwing money at a losing setup and we will say so. You will get a plain description of what we found and the options.

The same on every visit

You approve a written quote first

Covering 105 cities across Louisiana, Oklahoma, Texas.

You reach a person, not a menu

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

Every major brand, gas and electric

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

Duct Sealing — quick answers

How do I know my ducts are leaking?

Common signs are rooms that never reach the thermostat setting, an attic that feels cooled, dust returning quickly after a filter change, and a system that runs long cycles without keeping up. We confirm it with an inspection.

Will duct sealing help my heating too?

Yes. The same ducts carry warm air in winter, so leaks that dump cool air into the attic in July dump heat there in January. Sealing improves delivery in both seasons on the same duct system.

How long does duct sealing take?

Most homes take part of a day, depending on attic access, how many runs need work and whether boots have to be reattached. We give you a time estimate after we inspect the duct layout.

How it works

  1. Step 1

    Tell us the symptom

    Call or fill in the quote form with what you hear, smell or feel. Warm air, short cycling, a breaker that keeps tripping. Details on your porch help us arrive with the right parts.

  2. Step 2

    We diagnose on site

    A technician checks the thermostat, airflow, the indoor coil and blower, then the outdoor unit and electrical side. You get a plain explanation of what failed and why it failed.

  3. Step 3

    You approve the repair

    We walk you through the fix and any parts involved before we start. Once you say go, we make the repair and confirm the system is holding temperature before we leave your driveway.

Call (888) 878-4879
  • A real person answers
  • Open 7 days
  • Written quote before work starts

Why homeowners call us

  • Built for hard summersWe work on attic air handlers in July heat, undersized returns in older subdivisions, and condensers with hail-flattened fins. Those are everyday jobs across the region, so we know where these systems tend to give out first.
  • Air conditioner repair and heating repairOne crew for both seasons. Air conditioning repair when the house won't cool, heater repair and furnace repair when the burners won't stay lit. Same technicians, same records, so nobody starts from scratch in November.
  • We explain the failureYou hear which component failed and what it was doing to the rest of the system. If a repair is a short-term patch on an aging unit, we say so and let you decide the timing.
  • Respect for the houseDrop cloths, shoe covers, and the attic hatch closed the way we found it. We keep the work area clean and we tell you honestly when a problem is airflow or ductwork rather than the equipment itself.
  • 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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