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 Waxahachie
We answer calls for Waxahachie from our Dallas-Fort Worth dispatch office, and our crews are on local roads daily. Most Waxahachie appointments book within a few days, not weeks. We know the difference between a pre-1940 home on Franklin Street with original galvanized ductwork and a new build off Highway 287 with flex duct strung through engineered I-joists, and we bring different tools and materials for each. Call us at (361) 326-5060 to schedule a free estimate, and we’ll give you a written price before any work starts.
Why Hollis Air Duct Cleaning Is Waxahachie’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our standard hasn’t changed: arrive inside the window, price in writing, complete the job by the book, leave the site clean. That’s The Garrison Standard, and it applies to every Waxahachie home we enter, including those we serve with Waxahachie Dryer Vent Cleaning.
Our technicians are background-checked and uniformed. You know who’s walking through your door before they arrive. We don’t send day laborers or subcontractors. Our crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, plus sealing and filtration products from Honeywell, Aprilaire, and Guardsman.
Every duct sealing job in Waxahachie comes with our 365-Day Done Right Promise. If the work fails within a year, we return and make it right at no charge, including a free second visit. The price is written down before we touch anything, and it does not move at the door. No estimates that balloon once we’re inside.
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 for someone to pick up.
Air Duct Sealing in Waxahachie
Air Duct Sealing in Waxahachie is often the missing step between a new build that looks finished and one that actually performs. We seal the leaks, gaps, and disconnected joints in your HVAC duct system so conditioned air reaches the rooms it’s supposed to reach instead of bleeding into wall cavities, attics, or crawl spaces. In Waxahachie’s east- and south-side developments, we regularly find builder-installed jump ducts and transfer grilles left unsealed at the boot-to-drywall joint, a leak path that simply doesn’t exist in the rigid galvanized systems near the Ellis County Courthouse. A typical whole-system duct sealing job in Waxahachie runs $400 – $900 for residential homes, depending on system size, accessibility, and whether we need to seal from inside the living space or access the attic.
Sealing New Construction Leaks
On a 2023 build in the North Grove area, our tech pulled registers in a second-floor bedroom and found drywall dust, gypsum crumbs, and construction debris coating the flex supply and return ducts, with a visible gap where the boot met the engineered joist. We ran a Rotobrush with agitation tools under negative pressure and HEPA filtration, then sealed the boot collar and air handler cabinet seams. The homeowner’s complaint – dust settling on furniture within days of move-in – stopped within the first week.
Sealing Older Metal Systems
Near the courthouse square, we encounter original galvanized or transite ducts that have never been sealed with modern mastic. These systems can be sealed, but the approach differs. We use compatible sealants and avoid aggressive techniques that could damage fragile metal or disturb decades of accumulated material.
Duct Sealing Services in Waxahachie
Duct Sealing Services in Waxahachie cover the full range of leak sources we find in local homes: disconnected boots, gaps at the air handler cabinet, crushed flex duct at tight truss runs, and unsealed joints in engineered I-joist chases. Our Duct Sealing team uses mastic sealant, metal-backed tape rated for HVAC applications, and mechanical fasteners where appropriate. We don’t use duct tape. The cheap cloth-backed tape fails in Waxahachie’s attic heat within months. A typical repair-focused sealing job starts around $250 – $400 for localized leaks, while whole-system sealing for larger homes or multiple problem areas runs $600 – $1,200.
Boot-to-Drywall Joint Sealing
This is our most common find in new Waxahachie construction. The register boot gets shoved through drywall and never sealed to the finished surface. Conditioned air leaks into the wall cavity year-round. We seal this joint with proper mastic and backing material so the air you paid to heat or cool actually enters the room.

Air Handler Cabinet Seams
The metal box that houses your blower and coil has factory seams that rarely arrive perfectly tight. We seal these with high-temperature mastic so unfiltered attic or crawl space air doesn’t get pulled into the system downstream of your filter.

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.
Trusted Brands We Service in Waxahachie
We stock sealing materials and compatible components from Aprilaire, Abatement Technologies, and Guardsman for Waxahachie jobs, which means most repairs don’t wait on parts orders. Our Rotobrush rotary brush systems and Nikro negative-air machines handle the cleaning side when sealing requires pre-cleaning for adhesion. For filtration upgrades after sealing, we carry Honeywell and Aprilaire media cabinets and electronic air cleaners. If your Waxahachie home needs a specific boot size or transition fitting to complete a seal properly, we measure, source, and install without multiple return trips.
Common Duct Sealing Problems We See in Waxahachie Homes
- Construction debris in new east-side flex duct. Builders often leave supply and return ducts charged with drywall dust and framing debris at handover. The first HVAC season pushes this grit through every register, and homeowners mistake it for a filter problem.
- Unsealed boot-to-joist seams in engineered I-joist systems. The east- and south-side new builds use flex duct strung through engineered I-joist chases, where boot-to-floor and boot-to-joist seams frequently go unsealed. Conditioned air leaks into wall cavities and attic space, driving up bills and starving rooms of airflow.
- Crushed or kinked flex duct at tight truss runs. Flex duct in new south-side homes gets compressed at tight turns, creating dead zones where dust accumulates and never reaches the filter. These kinks also restrict airflow and create pressure imbalances that pull unconditioned air from leaks elsewhere.
- Homeowners chasing filter replacements instead of source removal. When post-construction dust keeps settling on furniture, many Waxahachie residents replace the filter repeatedly without addressing the debris still sitting in the duct trunk. Sealing without cleaning first traps that debris; cleaning without sealing leaves the leak path open for new contamination.
Pricing for Duct Sealing in Waxahachie, TX
A typical localized duct sealing repair in Waxahachie runs $250 – $400. Whole-system sealing for an average three-bedroom home runs $400 – $900, and larger homes or systems with extensive accessibility challenges can reach $600 – $1,200. What moves the price: how much of the system we can reach from existing access points versus where we need to cut new access, whether the ducts need pre-cleaning for sealant to adhere properly, and whether we’re sealing rigid metal, flex duct, or a mix of both.
We give one flat price per system, agreed in writing before work starts. No per-vent pricing. No add-ons at the door. You’ll see the number on paper before we pick up a tool. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Waxahachie
Our crews work throughout Ellis County and the southern Dallas-Fort Worth metro. We regularly schedule Duct Sealing in Waxahachie alongside appointments in Red Oak, Palmer, Midlothian, and Ennis. If you’re in one of these neighboring communities and dealing with the same new-construction dust or aging metal duct issues, the same crew, equipment, and written guarantee apply.
Serving Waxahachie, TX - Our Local Coverage Area
We’re based in the Waxahachie 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 Waxahachie
Yes. We find construction debris in the ducts of nearly every new build we inspect in Waxahachie, especially east- and south-side developments with flex duct systems. Drywall dust, gypsum crumbs, and framing debris sit in the trunk lines and get pushed through registers as soon as the HVAC cycles. Sealing without cleaning first traps that debris; cleaning without sealing leaves the leak paths open for new dust infiltration. Call (361) 326-5060 for a free estimate – we’ll inspect and give you a written price for both.
New east-side homes use flex duct and engineered I-joist chases where boot-to-drywall joints are frequently left unsealed, a leak path that doesn’t exist in the rigid galvanized systems near the courthouse square. Older homes near downtown may have original transite or galvanized ducts that require compatible sealants and gentler techniques. The tools and materials differ significantly. We assess which system you have before we quote.
Signs include rooms that never reach the thermostat setpoint, dust settling on furniture within days of cleaning, higher-than-expected energy bills in your first summer, and visible gaps around register boots where they meet the ceiling or floor. We can also run a pressure test to quantify leakage. Call (361) 326-5060 and we’ll show you exactly what we find.
Yes, with the right approach. Original galvanized or transite ducts near the Waxahachie courthouse square can be sealed using mastic compounds compatible with older metal and fiber-cement materials. We avoid aggressive techniques that could damage fragile components or disturb decades of accumulated material. The sealing lasts when the prep work matches the substrate.
Waxahachie’s high humidity and hot summers mean HVAC systems run almost year-round, putting constant pressure on duct seals. Attic temperatures in July regularly exceed 140°F, which can degrade inferior tapes and sealants. We use mastic and metal-backed tapes rated for sustained high temperature and humidity exposure, not hardware-store duct tape that fails within a season. Under normal conditions, properly applied mastic sealing lasts 10 – 15 years; we cover our work for a full year under the 365-Day Done Right Promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Waxahachie since 2004 as part of the Garrison Partners family.




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