Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Fast, Reliable Duct Sealing Across Mansfield
Duct sealing in Mansfield runs between $450 and $1,200 for a typical single-family home, depending on how many leaks we find and where the ductwork sits. Most Mansfield jobs wrap up in half a day. We know the subdivisions here, the builders, and the way Texas heat punishes flex duct in attics. If you’re losing conditioned air into your attic or seeing dust blow from your registers, it may be time for our Dryer Vent Cleaning in Mansfield or duct sealing-call (682) 255-2572 and we’ll give you a written price before any work starts.
Why Hollis Air Duct Fort Worth Is Mansfield’s Preferred Duct Sealing Company
We’ve been sealing ducts in Mansfield since this city started its big growth push, and our crews know the difference between a 2005 tract home off East Broad Street and a new build in the Arbor at Chisholm Trail. The equipment we run comes from brands like Rotobrush and Abatement Technologies, which means we’re not guessing at airflow with a hardware-store flashlight. We measure, we seal, and we show you what we found.
Our Mansfield customers get the same standard on every job: a written price before work begins, background-checked and uniformed technicians, and the 365-Day Done Right Promise in writing. If a seal fails within a year, we come back and make it right at no charge. That includes a free second visit, not a negotiated callback. Roy Castellanos leads the team out of our Dallas-Fort Worth office, and scheduling for Mansfield runs through a live person, 24/7. No voicemail loops.
Styles & brands we work with
Duct Repair in Mansfield
Duct Sealing starts with repair when the duct itself has failed. In Mansfield, the most common repair is a torn or disconnected flex duct in a hot attic. Duct repair here typically runs $250 to $600, depending on how many sections need reconnecting or how much mastic needs to be applied. If the inner liner of a flex duct tears, we replace the damaged section rather than patch it, because a patch on a liner will fail again once attic temperatures hit 140 degrees in July.
Disconnected Flex Duct Runs
Builders in Mansfield’s newer subdivisions often run flex duct through unconditioned attic space. The plastic outer jacket cracks under heat, the inner liner separates, and the duct pops loose at the takeoff collar. That’s when your supply plenum starts pulling hot attic air and whatever insulation dust is floating around. Our repair is a mastic-sealed reconnection that meets NADCA standards.
Crushed or Sagging Duct Sections
Sagging duct loses about a third of its internal area, which chokes airflow to rooms at the end of a run. Mansfield homes with long trunk lines to second-story bedrooms see this more often. We support the sag, re-round the duct, and seal every seam along the run.
Air Duct Sealing in Mansfield
Air duct sealing in Mansfield means closing every gap, seam, and connection point where conditioned air escapes before it reaches your rooms. A full sealing job in Mansfield costs $450 to $1,200 for an average home. The price depends on system size, attic accessibility, and how many plenum connections need mastic. We use a brush-applied mastic, not tape, because tape fails in Texas attic heat. Where access is tight, we run a negative-air setup from our Rotobrush and Nikro equipment to keep dust and fiberglass out of your living space while we work.
Supply Plenum and Takeoff Sealing
The supply plenum is the metal box that catches air right off your air handler. In Mansfield homes, this box usually sits in the attic. Every takeoff where a flex duct attaches is a potential leak. We seal each one with mastic and inspect the plenum itself for cracks or builder’s gaps.
Return-Side Sealing
Return leaks pull attic air into your system before it ever gets conditioned. That air carries fiberglass particles and construction dust. Sealing the return side is a separate step, and it matters just as much as the supply side if you’re seeing dust on surfaces in a room that stays closed.
Trusted Brands We Service in Mansfield
We stock parts for the brands Mansfield builders actually install, including Trane in Mansfield, which means we’re not waiting on a supply-house order when you need a repair. That includes duct components and filtration products from Aprilaire, Guardsman, and Abatement Technologies. Our sealing crews run Rotobrush rotary brush systems and Nikro negative-air machines, the same tools commercial crews use on larger buildings. If your Mansfield home has an Aprilaire filter cabinet or a Guardsman media filter, we service those when we’re in the system, and we’ll tell you whether the filter needs replacing before it chokes your airflow.
See the difference
Before
After
Before
After
Before
AfterCommon Duct Sealing Problems We See in Mansfield Homes
- New construction dust hardened into the duct liner. Drywall dust and sawdust coat the inside of ducts before move-in, then absorb humidity from Mansfield’s summers and form a crust that reduces airflow. We’ve scraped enough of this out of homes in the Arbor at Chisholm Trail to fill a shop vac.
- Flex duct connections popped loose in the attic heat. Builders use plastic zip ties or cheap tape at the takeoff collar. Once that attic hits 130 degrees in August, the connection fails and the supply side sucks attic air directly into your rooms. We reseal with mastic and a proper clamp.
- Oversized HVAC units causing condensation at leaky seams. Mansfield’s newer homes often get units sized for the square footage, not the duct design. Short cycles mean the coil runs cold and stops, leaving condensation that collects at any leaky seam and feeds mold spore growth around the register.
- Torn inner liners in flex duct blowing fiberglass particles. That’s not dust settling on your furniture. It’s liner material breaking down under heat and entering the airstream. In the Arbor at Chisholm Trail subdivision, our tech found this exact condition in a two-year-old home. We sealed the tears with mastic per NADCA standards and restored proper airflow to the supply registers, eliminating the dust that had coated the nursery every week.
Pricing for Duct Sealing in Mansfield, TX
Here’s what Mansfield homeowners should expect to pay. Duct repair for one or two damaged sections: $250 to $600. Full duct sealing for a typical 2,000 to 2,800 square-foot home: $450 to $1,200. Whole-home duct sealing plus a Mansfield system inspection: $600 to $1,400. The larger number applies when we’re sealing multiple plenum connections, replacing damaged flex sections, and working in a tight attic. What moves the price is the condition of your ducts, not the mood of the technician. You get the number in writing before we touch anything. Call (682) 255-2572 for a free estimate.
We Also Serve Cities Near Mansfield
Our crews regularly work in Duct Sealing in Mansfield and the surrounding area, including Kennedale, Fort Worth, Haltom City, and Bedford. If you’re just outside Mansfield proper, call us. We schedule by neighborhood, not by zip code, so response times stay consistent across the area.
Serving Mansfield, TX - Our Local Coverage Area
We’re based in the Mansfield area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Duct Sealing in Mansfield
Because a final inspection checks that ducts exist, not that they’re sealed. Mansfield inspectors don’t measure duct leakage, and builders rarely do. Construction dust, loose connections, and torn liners all pass inspection. Sealing is the fix for what the inspection doesn’t test. Call (682) 255-2572 and we’ll do a leak check on your new build.
Mansfield attics regularly hit 130 degrees in summer, which causes cheap builder’s tape to dry out and fail, flex duct jackets to crack, and mastic to cure faster during application. We account for that heat when we choose materials and schedule work. Mastic applied correctly in a hot attic actually cures faster and forms a harder seal than in a conditioned space. It’s one reason our sealing work holds up under Texas conditions.
Yes, usually. A master bedroom at the end of a long duct run suffers most when earlier sections leak, because the system loses pressure before it reaches that register. We find this regularly in Mansfield’s two-story homes built in the 2000s, where the master suite sits farthest from the air handler. Sealing the leaks upstream restores pressure to that last register. Call (682) 255-2572 for a free pressure check.
Yes. When we seal the return side and the supply connections, we stop the pathways that pull attic dust and construction debris into your airstream. In new Mansfield subdivisions, that drywall dust is already in the ducts from construction. Sealing alone won’t remove what’s already there, but combined with a proper cleaning, it stops new dust from entering. We recommend both on new builds, and the written quote covers either one or both.
You look for two specific signs. First, fiberglass particles around the supply register, not just dust. Second, the sound of air moving inside the duct directly above the register, even when the system is running normally. A seam leak pulls air out; a torn liner pushes insulation into your rooms. Our techs use a camera scope to confirm which one you have before we write the price. Call (682) 255-2572 and we’ll inspect it.
If your Mansfield home’s ducts are leaking into the attic, or if you’re seeing dust in a room that stays clean, call Hollis Air Duct Fort Worth at (682) 255-2572. We’ll give you a written price, seal it to NADCA standards, and back the work for a full year. No moving targets, no pressure. Just the job done right, in writing.
Written by Roy Castellanos, Owner at Hollis Air Duct Fort Worth, serving Mansfield and the surrounding area.