Whole-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 Fort Worth
Duct sealing in Fort Worth typically runs $400 – $1,200 for a whole-house job, depending on whether we’re working with accessible galvanized trunk lines in a pier-and-beam bungalow or flexible mylar runs baking in a 140°F North Fort Worth attic. Most Fort Worth homeowners see lower utility bills and more even room temperatures within the first billing cycle. If you’re tired of hot spots, dust, or a system that never stops running, call Hollis Air Duct Cleaning at (361) 326-5060. Our crews are dispatched from our Dallas-Fort Worth office and serve Fort Worth neighborhoods directly. We know the difference between a 1925 Fairmount cottage and a 2005 Alliance tract home, and we bring the right materials for each.
Why Hollis Air Duct Cleaning Is Fort Worth’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Fort Worth customers stay with us because we write the price down before we touch anything. No estimates that balloon once the technician is inside. Our Duct Sealing in Fort Worth work is covered by the 365-Day Done Right Promise: if the seal fails or the leak returns within a year, we come back and make it right at no charge, including a free second visit.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday.
We don’t chase the lowest teaser price. We compete on discipline: arrive inside the quoted window, price in writing, complete the job by the book, leave the site clean. That’s The Garrison Standard, and it’s how we operate in every Fort Worth home we enter.
Duct Sealing Services in Fort Worth
Duct Sealing Services in Fort Worth cover the repair of leaks, gaps, and disconnected joints in your HVAC ductwork. We use mastic sealant and fiberglass mesh on rigid metal ducts, and high-temperature-rated foil tape or specialized mastic on flexible mylar runs. A typical whole-house duct sealing job in Fort Worth runs $400 – $1,200, with most single-system homes falling in the $550 – $850 range. Homes with multiple zones, extensive disconnection, or asbestos-wrapped ductwork requiring abatement coordination will run higher.
Leak Detection and Static Pressure Testing
We pressurize your duct system and measure the loss. In Fort Worth’s older homes, we regularly find 25 – 35% air loss through cracks and separated joints. That means you’re paying to cool your crawl space or attic. We show you the numbers before we quote the fix.

Mastic Sealing and Joint Reconnection
We brush mastic sealant onto every joint, seam, and penetration, then reinforce with mesh on high-stress areas. For disconnected runs under pier-and-beam foundations, we reconnect and seal properly rather than taping over the gap and hoping it holds.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Duct Insulation in Fort Worth
Duct Insulation in Fort Worth addresses the heat gain and condensation that destroy efficiency in our climate. We install foil-faced fiberglass insulation on rigid ducts and closed-cell foam sleeves on flexible runs in unconditioned attics and crawl spaces. A typical duct insulation job in Fort Worth runs $600 – $1,800 depending on linear footage and accessibility. Homes in North Fort Worth and Saginaw with long attic runs often see the fastest payback because those ducts sit in 130 – 140°F heat for five months straight.
Attic Duct Insulation Upgrades
We remove degraded insulation, seal the underlying ductwork, then install new R-6 or R-8 foil-faced insulation with proper vapor barriers. In North Fort Worth tract homes built 1995 – 2010, the original insulation has often compressed or fallen away entirely.
Crawl Space Condensation Control
Fort Worth’s humidity means cool ducts in vented crawl spaces sweat. We insulate and seal to prevent condensation that breeds mold and rusts metal. In Fairmount and Riverside bungalows, this is often the difference between a system that lasts 15 years and one that fails in 8.
Trusted Brands We Service in Fort Worth
Our equipment roster includes Nikro negative-air machines, Rotobrush rotary brush systems, and filtration and sealing products from Honeywell, Aprilaire, and Abatement Technologies. We stock mastic, mesh, foil tape, and insulation sleeves sized for the ductwork we encounter most in Fort Worth, from 6-inch galvanized round to 14-inch rectangular trunk lines. That means no waiting on parts for standard jobs. When we encounter asbestos-wrapped ductwork in a Near Southside or Fairmount bungalow, we coordinate with licensed abatement contractors rather than pretending the problem doesn’t exist.
Common Duct Sealing Problems We See in Fort Worth Homes
- Asbestos-wrapped ductwork in pre-1940 bungalows. Fairmount and the Near Southside are full of original 1920s – 40s ducts wrapped in asbestos-containing insulation. Sealing over it without proper abatement is illegal and dangerous. We flag it during inspection and coordinate licensed removal before we touch the metal underneath.
- Flexible mylar duct collapse in North Fort Worth attics. The 1990s – 2000s tract homes in the Alliance and Keller corridor were built with cheap flexible duct that crushes under its own weight or tears at the connections. Standard duct tape fails in 140°F attic heat; we use high-temp mastic and mechanical supports.
- Disconnected runs under pier-and-beam foundations. Riverside and Fairmount homes have crawl spaces where ducts sag, separate, or get knocked loose by rodents. The homeowner feels weak airflow upstairs; we find the disconnected trunk line under the house.
- Leaky return plenums pulling in attic air. In Saginaw and far North Fort Worth, we see return plenums with gaps that suck 140°F attic air straight into the system. The AC runs constantly but never catches up. Sealing the plenum fixes it fast.
Pricing for Duct Sealing in Fort Worth, TX
Whole-house duct sealing in Fort Worth typically costs $400 – $1,200. Single-system homes with accessible ductwork usually land at $550 – $850. Two-story homes, multi-zone systems, or jobs requiring crawl-space access under pier-and-beam foundations run $900 – $1,200. Duct insulation adds $600 – $1,800 depending on linear footage. Asbestos abatement coordination is quoted separately by licensed contractors; we don’t mark it up.
What moves the price: accessibility (attic vs. crawl space vs. buried under a foundation), duct material (rigid metal seals faster than damaged flexible duct), and whether we find disconnected runs that need reconnection, not just sealing. We write the price down before any work starts. It does not move at the door. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Fort Worth
Our crews work throughout Tarrant County, including Fort Worth proper and neighboring Haltom City, North Richland Hills, Hurst, and Kennedale. Same standards, same written pricing, same 365-Day Done Right Promise in every home we enter.
Serving Fort Worth, TX - Our Local Coverage Area
We’re based in the Fort Worth 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 Fort Worth
Older homes often have asbestos-wrapped ductwork, pier-and-beam crawl spaces with disconnected runs, and galvanized metal that requires specialized mastic and mesh rather than standard tape. We coordinate licensed abatement when needed, which adds cost but keeps the job legal and safe. Call (361) 326-5060 for an exact quote on your Fort Worth home.
Yes, but only with high-temperature-rated mastic and foil tape, plus mechanical supports to prevent sagging. Standard duct adhesives fail within a season in Fort Worth’s attic heat. We use products rated for continuous exposure to 200°F. Call (361) 326-5060 for an exact quote.
We pressurize the system and measure static pressure at each register, then use a borescope camera in the crawl space to locate gaps, sags, and disconnections. In Fairmount and Riverside, we regularly find runs that separated decades ago. Call (361) 326-5060 for an exact quote.
Yes. Sealed ducts prevent your system from pulling humid attic or crawl space air into the airflow, which reduces indoor humidity spikes and keeps pollen and dust from entering through leaks. Most Fort Worth homeowners notice less dust and more consistent cooling within days. Call (361) 326-5060 for an exact quote.
We use Nikro negative-air machines for containment, Rotobrush systems for pre-cleaning, and sealing products from Honeywell, Aprilaire, and Abatement Technologies. These are the same tools commercial crews use, not hardware-store gear. Call (361) 326-5060 for an exact quote on your Fort Worth home.
We were called to a 1926 bungalow on Lipscomb Street in Fairmount where the homeowner complained of uneven cooling and dust blowing from the registers. During our camera inspection we found a crushed galvanized trunk line under the pier-and-beam foundation and several disconnected runs wrapped in frayed asbestos insulation. After proper abatement, we sealed the joints with mastic and mesh, reconnected the runs, and the static pressure dropped enough that the blower motor stopped short-cycling. That’s the kind of problem you can’t fix with a coupon duct cleaning.
Fort Worth’s air duct sealing market is dominated by two extremes: century-old bungalows in the Near Southside and Fairmount that have original unlined ductwork, and the massive inventory of 1990s – 2000s suburban tract homes in far North Fort Worth with flexible mylar duct runs that collapse or tear in attics that routinely hit 140°F. No single service approach works across both. A one-size-fits-all franchise model fails here. We bring different materials, different techniques, and different expectations for each.
Ready to stop paying to cool your attic or crawl space? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate. We’ll write the price down before any work starts, and every job is backed by our 365-Day Done Right Promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Fort Worth since 2004.




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