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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Wylie
Most Wylie homes built since the 1990s are losing 20 – 30% of their conditioned air through leaks in the attic ductwork. Duct sealing in Wylie typically runs $400 – $900 for a standard single-system home, and our crew can usually inspect and seal within a week of your call. We’re the Wylie crew for Hollis Air Duct Cleaning, dispatching from our Dallas-Fort Worth office with technicians who know the local housing stock inside and out. Call (361) 326-5060 for a free estimate.
Wylie’s explosive growth means thousands of homes went up fast along Highway 78 and in neighborhoods like Wylie Estates, Woodbridge, and Inspiration. Fast construction leaves fast shortcuts. We’ve sealed ducts in two-year-old houses that leaked worse than twenty-year-old ones because the builder never sealed the plenum or properly flashed attic penetrations. That local pattern is exactly why we approach Wylie jobs differently than a generic crew from out of market, and why our Wylie Dryer Vent Cleaning follows the same careful standards.
Why Hollis Air Duct Cleaning Is Wylie’s Preferred Duct Sealing Company
We’ve been serving North Texas since 2004 as part of the Garrison Partners family, and our Wylie reputation is built on showing up inside the window, pricing in writing, and leaving the site clean. The Garrison Standard requires it. Our technicians are background-checked and uniformed; you know who’s walking in before they arrive.
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 for a scheduling question.
Every duct sealing job carries our 365-Day Done Right Promise in writing. If the seal fails within a year, we come back and make it right at no charge, including a free second visit. No negotiation, no runaround.
We know Wylie’s specific problems: the black clay soil shifting slab-on-grade foundations, the attic air handlers baking through July and August, the builder-grade flex duct sagging after a decade of heat cycles. That local knowledge means we spot failure modes an out-of-market crew misses entirely.
Duct Sealing Services in Wylie
Duct Sealing Services in Wylie address the leaks, gaps, and failed connections that pull attic air into your living space and push conditioned air into places you don’t live. We use Guardsman mastic and professional-grade sealants, not hardware-store duct tape, because Wylie’s 100°F+ attic temperatures destroy adhesive-backed products within a season. A typical duct sealing job in Wylie runs $400 – $900 depending on system size, attic accessibility, and whether we need to reflash penetrations cracked by soil movement.
Plenum and Joint Sealing
The plenum is the metal box where your air handler meets the duct trunk. In Wylie’s fast-track new builds, this connection is often left unsealed or taped with a product that fails within two summers. We remove failed tape, clean the mating surfaces, and apply Guardsman mastic rated for North Texas temperature swings. The seal is permanent, not seasonal.
Attic Penetration Reflashing
Wylie’s black clay soil swells when wet and shrinks when dry, cracking the flashing where ductwork crosses from attic to living space. Our Duct Sealing scope always includes inspecting these boundaries, not just taping flex runs. We reseal penetrations with proper collars and mastic so attic air stays in the attic.
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 Wylie
Duct Insulation in Wylie protects against the single biggest efficiency killer in local homes: attic ductwork baking in 140°F+ summer temperatures. Even perfectly sealed ducts lose capacity if the insulation jacket is compressed, torn, or rated for a cooler climate. We install fresh insulation wraps and verify R-value adequacy for North Texas extremes. Typical duct insulation work in Wylie runs $300 – $700 for a standard system, often combined with sealing for a single visit.
Insulation Replacement for Heat-Damaged Flex
Wylie’s attic-mounted air handlers run almost year-round, and the radiant heat degrades flex duct insulation from the outside in. We strip damaged jackets and install new flex with intact vapor barriers, sized properly for airflow. No compression at bends, no kinks behind air handlers.
Rigid Metal Duct Insulation
In Wylie’s older core near downtown, original rigid metal ductwork often has internal fiberglass insulation that’s shedding fibers into the airstream. We don’t just seal these systems; we assess whether the internal liner needs replacement or if external insulation is the cleaner solution.
Trusted Brands We Service in Wylie
We stock parts and materials from Abatement Technologies, Guardsman, and Aprilaire so Wylie customers aren’t waiting on a supply-house order. Our equipment roster includes Rotobrush rotary systems for agitation cleaning and Nikro negative-air machines for source removal. When we seal a plenum or replace flex in your Wylie attic, we’re using the same products commercial crews specify, not whatever was on sale at the hardware store. That means faster turnaround and seals that hold up to local conditions.
Common Duct Sealing Problems We See in Wylie Homes
- Unsealed plenum connections in new builds. Fast-track construction along the Highway 78 corridor left plenum boxes taped with products that fail within two summers. We find supply and return connections blowing conditioned air directly into the attic, not the living space.
- Cracked attic penetrations from soil movement. Wylie’s black clay shifts enough to break seals where ductwork crosses the attic floor. Attic air pulls into bedrooms and living rooms through these gaps, carrying dust and insulation fibers.
- Sagging flex duct from heat degradation. Ten to twenty years of 140°F attic heat kinks and compresses builder-grade flex, creating restriction points that starve distant registers and overwork the blower motor.
- Failed duct tape adhesive. The adhesive on standard duct tape liquefies in Wylie attic summers and crystallizes in winter. We remove every trace and replace it with mastic rated for the temperature swing.
Pricing for Duct Sealing in Wylie, TX
Duct sealing in Wylie runs $400 – $900 for most single-system homes. Smaller homes with accessible attics and limited leakage fall at the lower end. Larger homes with multiple systems, extensive flex replacement, or penetration reflashing needed after soil movement reach the upper range. We do not quote per-vent or per-register pricing; that’s the bait-and-switch model that burns homeowners. One flat price per system, agreed in writing before we start, and it does not move at the door.
Factors that push cost higher: multiple HVAC zones, attic air handlers requiring platform work, extensive construction debris removal from unsealed new-build plenums, and rigid metal duct systems needing internal liner assessment. We’ll tell you exactly where your job falls after a free inspection with camera documentation.
Call (361) 326-5060 for an exact quote. Estimates are free, and we show you the leaks before we price the fix.
We Also Serve Cities Near Wylie
Our crews work throughout the eastern Dallas-Fort Worth metro, including Duct Sealing in Wylie and surrounding communities: Sachse to the west, Lavon to the south, Rowlett to the southwest, and Garland to the northwest. Same standards, same written pricing, same 365-Day Done Right Promise at every address.
Serving Wylie, TX - Our Local Coverage Area
We’re based in the Wylie 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 Wylie
Builder crews often leave plenum connections unsealed or use tape that fails within two summers. On a new build off Highway 78, we found a supply plenum dumping drywall dust into every register because the builder never sealed the air handler connection. Call (361) 326-5060 for an inspection if your registers are spitting white powder or your filter clogs within weeks.
The soil swells when wet and shrinks when dry, cracking flashing where ductwork penetrates from attic to living space. Our Wylie scope always includes resealing these boundaries, not just taping flex runs. Ignoring the penetration seals means attic air keeps pulling in even after the ducts are taped.
We pressurize the system to locate leaks, then seal plenum joints with Guardsman mastic, replace failed flex connections, and reflash attic penetrations cracked by soil movement. The job typically takes 3 – 5 hours for a single system. Call (361) 326-5060 to schedule.
Original 1990s flex in Wylie Estates is often brittle from two decades of attic heat. We camera-inspect to assess condition; if the inner liner is intact, sealing joints and replacing insulation may suffice. If the flex is cracked or the wire helix is exposed, replacement is the only durable fix. We’ll show you the camera footage and quote both options in writing.
Signs of leakage include uneven temperatures room to room, excessive dust after cleaning, filters that clog rapidly, and utility bills that spike in July and August despite normal usage. We offer camera inspection and pressure testing to distinguish leakage from contamination. Call (361) 326-5060 to book a free evaluation.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Wylie and the greater Dallas-Fort Worth area since 2004.