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.
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AfterFast, Reliable Duct Sealing Across Kyle
Duct sealing in Kyle typically runs $450 – $850 for a whole-system seal on a standard single-family home, and most jobs are completed in a single visit after a written estimate. If your registers are blowing dust or your upstairs rooms won’t cool evenly, the culprit is often leaky flex-duct joints in your attic, not your AC unit itself.
We serve Kyle from our Austin dispatch office, with crews running daily routes through Plum Creek, Kyle Crossing, Sunfield, and the I-35 corridor subdivisions. We know the housing stock here because we’ve worked inside it: the DR Horton, Lennar, and KB Home builds with foil-wrapped flex duct in 130°F attics, the construction debris left behind at handover, and the connector joints that start pulling apart around year eight. When you call (361) 326-5060, a live person answers, and we’ll give you a written price before any work starts. That’s The Garrison Standard.
Why Hollis Air Duct Cleaning Is Kyle’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. Our crews have sealed and repaired duct systems in hundreds of Kyle homes, and the pattern is consistent: builder-grade flex duct in newer subdivisions fails at the joints, and sealing without repairing the underlying damage just hides the problem for a season.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. We price every job in writing before we touch anything, and we back our work with the 365-Day Done Right Promise. If a seal fails or a repaired joint opens up within a year, we come back and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops. No callback queues. No waiting until Monday to schedule.
Duct Repair in Kyle
Duct Repair in Kyle is almost always necessary before sealing because builder-grade flex duct in this city’s newer homes fails at the connector joints within 8 – 10 years of construction. The foil wrapping tears, the wire coil inside kinks or sags in the attic heat, and the joint at the air handler pulls apart completely, dumping conditioned air into your insulation. A typical duct repair in Kyle runs $280 – $550 depending on how many joints need reconnection and whether sections of flex duct require replacement.
Connector Joint Failure at the Air Handler
This is the most common call we get in Kyle. The flex duct is secured to the plenum with a zip tie or cheap clamp that loosens as the duct expands and contracts with temperature swings. We cut back to solid duct, install a proper mechanical connection, seal with mastic, and support the run so it doesn’t sag.
Sagging or Kinked Flex Runs
Flex duct should be supported every four feet and pulled taut. In Kyle’s 130°F attics, unsupported runs sag between rafters, creating low spots where condensation collects and airflow drops. We rehang the run, replace crushed sections, and restore design airflow to the room.
Air Duct Sealing in Kyle
Air Duct Sealing in Kyle involves sealing every joint, seam, and penetration in your duct system with mastic or foil-backed tape rated for HVAC use, then pressure-testing to verify the seal. On a typical Kyle home with flex duct in an unconditioned attic, sealing reduces air leakage by 20 – 35 percent, which translates directly to more even temperatures, lower utility bills, and less dust pulled from the attic into your living space. Whole-system air duct sealing in Kyle runs $450 – $850; partial sealing of a specific zone or repair area starts around $220.
Mastic Sealing vs. Tape-Only Methods
We use water-based duct mastic on every metal joint and high-temperature foil tape on flex-to-plenum connections. Tape alone dries out and peels in Kyle’s attic heat. Mastic remains flexible and is the only method that meets SMACNA standards for permanent sealing.
Post-Repair Pressure Verification
After we seal, we run a static pressure test to confirm the system is moving the designed CFM to each room. If the pressure is still off, we know there’s another leak we haven’t found. We don’t leave until the numbers match.
Trusted Brands We Service in Kyle
We carry professional-grade equipment and materials from Rotobrush, Nikro, Aprilaire, and Abatement Technologies on every Hollis truck serving Kyle. That means if your duct repair requires a new section of flex duct, a better register boot, or upgraded filtration after we’re done, we don’t need to order parts and come back. We stock what Kyle homes actually use: foil-backed flex duct rated for attic temperatures, mastic that cures in high heat, and HEPA filtration media from Guardsman for post-repair air scrubbing. Most jobs are completed same-visit.
Common Duct Sealing Problems We See in Kyle Homes
- Construction debris still in ducts from the build. In Sunfield, Plum Creek, and Kyle Crossing, we regularly find drywall dust, sawdust, and fiberglass insulation fragments coating the inside of supply and return ducts in homes that have never been cleaned. Sealing over this debris traps it in the system and pushes it through your registers every time the blower cycles.
- Connector joints pulled apart at the air handler. The zip ties and clamps used by production builders loosen within a few years of thermal cycling in Kyle’s 130°F attics. A disconnected joint can leak 20 – 30 percent of your conditioned air into the attic, and sealing the visible joints without repairing the failed connection is a temporary fix at best.
- Condensation and mold at flex-duct joints during shoulder seasons. Kyle’s humid subtropical swings mean attic temperatures drop below dew point in October and April. Moisture wicks into flex-duct insulation at the joints, and sealing a damp duct run traps that moisture against the foil, accelerating deterioration and creating musty odors.
- Sagging flex duct creating low spots and airflow restriction. Unsupported runs in Kyle’s newer homes sag between trusses, reducing airflow to distant rooms and creating back-pressure that pulls attic air through every remaining leak. Sealing alone doesn’t restore airflow; the duct has to be rehung properly.
Pricing for Duct Sealing in Kyle, TX
Whole-system duct sealing in Kyle runs $450 – $850 for a typical 1,800 – 2,800 square foot home with flex duct in an unconditioned attic. Partial sealing of a single zone or repair area starts at $220. Duct repair, when needed, adds $280 – $550 depending on how many joints have failed and whether we’re replacing crushed or torn flex runs.
What moves the price: accessibility of the attic, number of supply and return branches, whether we need to remove construction debris before sealing, and if any joints require mechanical repair rather than just mastic. We give you one flat price per system, agreed in writing, before any work starts. No per-vent pricing. No add-ons at the door. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Kyle
Our crews run daily routes through Buda, San Marcos, Dripping Springs, and Austin. If you’re outside Kyle city limits but in the I-35 corridor or Hays County growth area, we likely already have a truck in your neighborhood. You can learn more about our full service area on our Duct Sealing in Kyle hub page, or explore our Duct Sealing service details for pricing and process information.
Serving Kyle, TX - Our Local Coverage Area
We’re based in the Kyle 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 Kyle
Yes, and it’s more common than most new homeowners expect. Production builders in Kyle’s master-planned subdivisions often leave construction debris in the ducts and use the minimum-grade foil-wrapped flex duct allowed by code. We’ve sealed and cleaned ducts in KB Home, DR Horton, and Lennar properties less than two years old where the joints were already leaking and the registers were blowing drywall dust. Call (361) 326-5060 for a camera inspection and written estimate.
Because Kyle’s housing stock is almost entirely post-2010 flex-duct construction, and builder-grade flex in 130°F attics fails at the connector joints within 8 – 10 years. Sealing a joint that’s already pulled apart or torn is like patching a tire with a nail still in it. We repair the mechanical connection first, then seal. The 365-Day Done Right Promise covers both.
We seal every metal-to-metal joint with mastic, every flex-to-plenum connection with high-temperature foil tape, and every register boot penetration with mastic and mesh reinforcement. On a typical Kyle home, that means 15 – 25 individual seal points in the attic, plus pressure testing to verify the system holds. The process takes 3 – 5 hours for a whole-house seal.
It helps significantly, but only if we remove the source first. Kyle’s oak and cedar pollen loads are heavy in spring and fall, and leaky return ducts pull attic air – and pollen, and insulation fragments – directly into your system. Sealing the returns stops that infiltration. If construction debris is still in the ducts from the build, we recommend source removal cleaning before sealing so we don’t trap it behind the seal.
Start with the symptoms. Uneven temperatures between rooms, dust at the registers, or a utility bill that climbs every summer suggest leaks. If your home is 8 – 12 years old in Plum Creek, Kyle Crossing, or Sunfield, there’s a strong chance the flex-duct joints have failed mechanically and need repair before sealing. We run a camera inspection and pressure test to show you exactly what’s happening. The inspection is free with any estimate. Call (361) 326-5060 to schedule.
Ready to stop losing conditioned air to your attic? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free written estimate on duct sealing or repair in Kyle. We’ll show up in the window we promised, price the job in writing before we start, and stand behind our work for a full year with the 365-Day Done Right Promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Kyle and Central Texas since 2004.