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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Before
AfterFast, Reliable Duct Sealing Across The Colony
Duct sealing in The Colony typically runs $400 – $1,200 for a whole-home seal, depending on whether we’re working with intact flex runs or addressing collapsed ductwork that needs rebuilding first. Most jobs take a half day, and we price them in writing before any mastic goes on. Call (361) 326-5060 for a free estimate.
We’ve been sending crews to The Colony since our Dallas-Fort Worth office opened dispatch for this market, and we’ve learned the local duct stock inside out. The homes here were built in a concentrated wave, mid-1980s through the 2000s, mostly by the same handful of production builders. That means when we pull up to a house in Stewart Peninsula or The Shores, we already know what we’re likely to find: original gray flex duct, fiberglass duct board at the plenum, and register boots that have been baking in 100°F+ attic heat for twenty to forty years. We’re not guessing. We’re working from pattern recognition earned across hundreds of The Colony jobs.
Our technicians arrive uniformed, background-checked, and inside the quoted window. The price is written down before work starts. And every seal is covered by our 365-Day Done Right Promise: if it fails, we come back and make it right at no charge, including a free second visit.
Why Hollis Air Duct Cleaning Is The Colony’s Preferred Duct Sealing Company
We don’t chase every suburb. We serve The Colony because the duct problems here are specific enough that a generic crew wastes half the day figuring out what our techs recognize in the first ten minutes. The Tribute, Newman Farm, the original core near Main Street, each has its own failure profile, and we’ve mapped them from experience.
Our reputation here is built on showing up when we said we would and leaving the site clean. That’s The Garrison Standard. No voicemail loops, either. Phones are answered by a live person 24 hours a day, seven days a week, so when you’re staring at a summer electric bill that jumped thirty percent because your cooled air is dumping into the attic, you reach a human who can get a crew scheduled.
Reviews from The Colony customers consistently mention two things: the written price that didn’t move at the door, and the before-and-after photos our techs showed them of their own ductwork. We’re not asking anyone to trust us on faith. We show the leak, we show the seal, we show the pressure test.
Air Duct Sealing in The Colony
Air Duct Sealing in The Colony starts with understanding that most local duct systems were installed during a single, compressed building boom and are now hitting failure age simultaneously. The job involves pressurizing the system, locating leaks with smoke or infrared, then sealing joints, plenums, and boots with mastic or foil-backed tape rated for ductwork, not the hardware-store stuff that peels off in attic heat. When a The Colony homeowner needs it: rooms that won’t hold temperature, whistling registers, dust pouring from vents, or summer electric bills that spike despite normal usage. A typical whole-home seal in The Colony runs $400 – $1,200; partial seals or single-run repairs start around $250.
What We Find in Attic Inspections
Our Rotobrush camera systems let us show homeowners exactly what we’re seeing: disconnected flex joints, crushed runs where a cable installer crawled over them, or fiberglass liner that has turned to powder. In The Colony’s original core near Main Street, we regularly open a register to find the flex duct has collapsed entirely. No seal possible. We price the rebuild separately, in writing, before we cut anything.
Pressure Testing After the Seal
We don’t guess that the job worked. We test. Using a manometer, we measure static pressure before and after sealing. In a mid-2000s tract home in The Shores, we dropped static pressure enough that the blower motor stopped short-cycling. The homeowner’s July bill came down nineteen percent. That’s a measurable result, not a claim.
Duct Sealing Services in The Colony
Duct Sealing Services in The Colony address a housing stock with a unique compressed-age problem: nearly every duct system was built between the mid-1980s and 2000s, meaning the original builder-grade materials are failing at the same time across entire neighborhoods. Our service includes full-system inspection with camera documentation, leak identification under pressure, mechanical repair of accessible disconnections, mastic sealing of joints and boots, and post-seal pressure verification with written results. When a The Colony homeowner needs it: uneven heating or cooling, excessive dust, allergy symptoms that worsen when the HVAC runs, or energy bills that climb year over year despite no rate increase. Whole-home sealing ranges $400 – $1,200; targeted repairs for single failed runs run $250 – $500.
Construction Debris in Newer Builds
Even in newer Newman Farm and Stewart Peninsula construction, we find drywall dust and debris packed into supply boots at handover. Flex joints that were never properly sealed from the factory leak debris-laden air before the first summer ends. We clean before we seal. Sealing over dirt guarantees failure.
Rebuilding vs. Sealing
Sometimes there’s nothing left to seal. When flex duct liner has disintegrated into dusty fiberglass, mastic has no substrate to bond to. We price the rebuild in writing, execute it under negative pressure with HEPA filtration from our Nikro equipment, then seal the new run to NADCA standards. The homeowner sees the photos, sees the pressure numbers, and knows what they paid for.
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 The Colony
We stock parts and sealing materials from Guardsman and Abatement Technologies for The Colony jobs, which means most repairs don’t wait on a Dallas supply house run. Our crews carry Rotobrush camera systems for inspection and Nikro negative-air machines for jobs where duct liner degradation requires controlled containment. For filtration upgrades after sealing, we source Honeywell and Aprilaire products. Fast turnaround matters here because when attic temperatures hit 140°F in July, a homeowner with a collapsed flex run and a short-cycling compressor needs the fix this week, not next month. Our Dallas-Fort Worth warehouse keeps common flex diameters, mastic, and register boots in stock for exactly that reason.
Common Duct Sealing Problems We See in The Colony Homes
- Collapsed flex duct in the original core. On older streets near Main Street, the original gray flex runs have baked in attic heat until the wire helix gives way and the liner collapses. We open the register and find no intact duct to seal. This turns a standard seal job into a rebuild, priced separately before we start.
- Disintegrating fiberglass duct board at seams. The 1980s-2000s builder-grade fiberglass duct board used across The Colony fails at the corners and joints after decades of thermal cycling. The liner turns to powder instead of holding a seal. We remove the degraded section and rebuild with modern materials.
- Drywall dust packed in newer construction boots. At handover in Newman Farm and Stewart Peninsula builds, construction debris fills supply and return ducts. Flex joints that were never factory-sealed leak this debris into living spaces. We extract the debris under negative pressure, then seal properly.
- Disconnected joints from cable and satellite installers. The Colony’s tract homes have had multiple service installations since original build. Techs crawling attics for TV, internet, and security systems regularly crush or disconnect flex runs. We find the break, repair it, and seal the system.
Pricing for Duct Sealing in The Colony, TX
Whole-home duct sealing in The Colony runs $400 – $1,200. Single-run repairs or partial seals start at $250. What moves the price: accessibility of the attic, extent of collapsed or degraded ductwork requiring rebuild rather than seal, and whether we need to set up negative-air containment for fiberglass liner removal.
We don’t quote per-vent. We quote per system, in writing, before work starts. The price does not move at the door. Every estimate is free, and we show you the camera footage that justifies the scope. If a job turns from seal to rebuild, we stop, explain, and get written approval for the additional work. No surprises.
The Colony’s uniform housing stock actually helps us price accurately. We’ve seen enough of these systems to know within a narrow range what a Stewart Peninsula three-bedroom or a Tribute five-bedroom will need. Call (361) 326-5060 for your exact quote.
We Also Serve Cities Near The Colony
Our crews roll regularly to The Colony from the Dallas-Fort Worth dispatch office, and we cover Little Elm, Lewisville, Lake Dallas, and Carrollton on the same routes. If you’re in one of these neighboring cities and your home shares The Colony’s era of construction, you’re likely facing the same flex-duct and duct-board issues we specialize in. Our Duct Sealing team can schedule you on the same calendar.
Serving The Colony, TX - Our Local Coverage Area
We’re based in the The Colony 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 The Colony
Construction debris from drywall sanding and framing sits in the ducts of newer The Tribute homes at handover, and builder-grade flex joints are often left unsealed from the factory. Within the first two years, that debris works its way through leaking joints, and the HVAC system runs harder than it should. We clean the boots, inspect the joints, and seal what the builder skipped. Call (361) 326-5060 for a free inspection.
In the original core near Main Street, flex duct installed in the 1980s and 1990s has often collapsed or disintegrated after decades in 140°F attic heat. There’s no intact surface left for mastic to bond to. We rebuild the run with new flex, then seal it properly. The seal is only as good as the substrate beneath it.
Yes. The Colony sits in the North Texas Blackland Prairie with 100°F+ days from May through October and heavy mountain cedar, ragweed, and oak pollen seasons. An unsealed duct system pulls attic heat and allergens into conditioned space continuously, and the HVAC runs near-constantly to compensate. Sealing drops the load, drops the bill, and drops the pollen count inside. Most homeowners see measurable improvement within one billing cycle.
We don’t. Our process starts with mechanical cleaning of every joint and boot we will seal, using rotary brush systems and negative-air extraction. Mastic over dust fails in months. We verify clean substrate with camera inspection, then apply mastic or foil-backed tape rated for duct temperature cycling. The seal is tested under pressure before we leave.
It can, and we flag it before we start. In The Colony’s original core, we estimate that roughly one in three seal jobs reveals collapsed or disintegrated flex that needs rebuilding. We show you the camera footage, price the repair in writing, and get approval before we proceed. You’re never obligated to expand the scope, and we don’t pressure. The Garrison Standard requires pricing before touching, every time.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving The Colony since 2004 as part of the Garrison Partners family.