Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Rowlett
Duct sealing in Rowlett typically runs $450 – $1,200 for a full system, depending on duct count and how much of your existing flex has deteriorated. Most homes here fall into two camps: original 1970s – 1990s flex duct that’s coming apart at the seams, or newer construction near Lake Ray Hubbard with drywall dust still moving through the returns. We know both problems well and we write the price down before any work starts. If you’re seeing dust around registers or your cooling bill keeps climbing, call (361) 309-6223 and we’ll walk the system with you.
Every job is backed by the 365-Day Done Right Promise: if a sealed joint fails within a year, we return and make it right at no charge. That’s in writing, not a verbal assurance.
Why Hollis Air Duct Dallas Is Rowlett’s Preferred Duct Sealing Company
Rowlett isn’t a one-size-fits-all duct market. The housing stock tells the story: established neighborhoods off Main Street and Dalrock with original flex duct, then whole new subdivisions near the lake with bigger systems and post-build debris. We’ve sealed both types. Our technicians go into Rowlett homes every week, so they know the difference between a 1985 ranch house near Miller Road and a two-story build near Lake Ray Hubbard with return chases behind drywall.
We run Duct Sealing work under The Garrison Standard, which means the tech arrives inside the window, hands you a written price before touching anything, and leaves the site clean. Calls are answered by a live person 24/7. Roy Castellanos leads the team, and the standard he enforces is the same on every job: price first, then work, then a one-year guarantee.
Styles & brands we work with
Air Duct Sealing in Rowlett
The first step in any Rowlett duct sealing job is finding where the system actually leaks. We do that with a camera inspection from a Rotobrush system and a negative-pressure check. Once we map the leaks, we seal them at the source, not just where the duct is easy to reach. In Rowlett, that matters because so much of the older stock has leaks at buried connection points that visible tape alone won’t fix.
Air duct sealing in Rowlett homes generally costs $500 – $900 for a typical single-family system. Larger lake-area homes with two units or long return runs push toward $1,000 – $1,200. We don’t quote per vent. The price you sign is the price for the whole system.
Older Home Flex Duct Repair
Original flex duct from the 1970s – 1990s was never meant to last 40 years in Texas heat. The outer jacket cracks, the inner liner tears, and the joints start pulling apart. We use mastic and mesh tape at every accessible joint and replace sections where the flex itself has failed.
Post-Construction Duct Sealing
Newer Rowlett construction frequently has unhooked boots, poorly taped plenum connections, and return chases open to the attic. Drywall dust is a symptom; the actual problem is that the system is pulling air from wherever it can. Sealing closes those paths and forces the system to pull from the rooms it’s supposed to condition.
Duct Sealing Services in Rowlett
When we talk about Duct Sealing Services in Rowlett, we’re talking about the full envelope of the air delivery system. Supply ducts, return chases, the air handler connections, boots, and collars. Sealing half the system doesn’t work. If the supply side is tight but the return side is pulling attic air, you still get dust and you still lose efficiency.
In older Rowlett homes near downtown, the return side is often the worst offender. In newer lake-area builds, it’s the supply boots that were never properly secured. We address both. A full-system seal in Rowlett typically runs $600 – $1,100.
Supply and Return Sealing
We seal accessible supply runs and return chases with mastic applied over fiberglass mesh. Mastic is a thick, brush-on sealant that hardens into a permanent, flexible seal. It’s not tape. It doesn’t dry out and peel like the foil tape that fails on old flex within months in Rowlett’s humidity.
Air Handler and Plenum Sealing
The connection between your air handler and the duct system is the highest-pressure point in the whole setup. If it leaks, you lose conditioned air into the mechanical closet or attic before it ever reaches a register. We seal plenums, reconnect collars, and verify the fix with a negative-pressure reading.
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 Rowlett
We work on every major duct configuration and component brand you’ll find in Rowlett homes. Our crews carry Nikro negative-air machines for verification, and our camera inspections run through Rotobrush systems. When filtration is part of the job, we stock and install products from Honeywell and Aprilaire, with Guardsman options for whole-house media filters. If your Rowlett system uses any of these brands, we can evaluate and seal it without waiting on special-order parts for most standard configurations.
Common Duct Sealing Problems We See in Rowlett Homes
- Failed foil tape on 1980s flex duct. The adhesive breaks down in Rowlett’s humidity within months. The tape peels away, the joint opens, and conditioned air leaks into the attic. We replace the failed tape with mastic and mesh, which forms a permanent bond that flexes with the duct.
- Dust streaking around registers in older downtown homes. That’s a visible sign the return side is pulling attic or wall-cavity air. Sealing the return chases and boots stops the dust at the source instead of just cleaning it up.
- Post-construction leaks near Lake Ray Hubbard. New builds often have boots that were never mechanically fastened, so the duct pulls away from the register box. We reattach boots, seal the connection, and close the gap that’s been pulling drywall dust into the system.
- Leaky return chases in two-story homes. Framing cavities used as returns are rarely sealed at the top plate or behind drywall. The system ends up pulling attic air. We seal the accessible chase and install proper collars at the air handler.
See the difference
Before
After
Before
After
Before
AfterPricing for Duct Sealing in Rowlett, TX
A typical full-system duct seal in Rowlett runs $450 – $1,200. Older single-story homes with one air handler and moderate access land around $500 – $800. Two-story homes or builds with long return runs and multiple plenums run higher, typically $800 – $1,200. Post-construction sealing jobs on newer lake-area homes usually fall between $600 and $1,000 depending on how many boots and chases need attention. What drives the price: the number of connections we seal, how much flex needs replacement, and how accessible the return side is. You get the full price in writing before work starts and it doesn’t move. Call (361) 309-6223 for a free estimate on your Rowlett system.
We Also Serve Cities Near Rowlett
Our crews work throughout the northeast Dallas suburbs. Beyond Duct Sealing in Rowlett, we run sealing jobs in Garland, Sachse, Richardson, and Dallas. If you’re in one of those cities and dealing with the same Texas heat, older flex duct, or post-build dust problems, the same written pricing and 365-day guarantee apply. Call the office and we’ll schedule you with a Rowlett-area crew.
Serving Rowlett, TX - Our Local Coverage Area
We’re based in the Rowlett 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 Rowlett
Yes, and it’s often the only fix that lasts. The dust streaks you see around registers in older Rowlett homes are usually a symptom of return-side leaks pulling attic or wall-cavity air into the system. Cleaning removes the dust that’s already there, but sealing the return chases and connections stops new dust from entering. In the established neighborhood off Main Street, we sealed a 1980s home with original flex duct after a Rotobrush camera showed gaps at multiple connections and dust streaking on every register. We sealed the supply ducts with mastic and mesh, reconnected the air handler with new collars, and verified the fix with negative pressure. Register airflow increased noticeably. If you’re seeing dust return within weeks of cleaning, call (361) 309-6223 and we’ll camera the system to find where the air is actually entering.
Yes, but it takes coordination and access panels. Condo buildings in Rowlett, especially older low-rise stock, often share duct chases or wall stacks. The leaks are usually at the boot connections or the air handler, which means we can often complete the sealing from inside the unit without touching a neighbor’s space. If a shared chase requires access, we’ll coordinate with the HOA or building management before we open anything. We won’t cut drywall without written approval. The work itself is quiet: camera inspection, mastic application, negative-pressure verification. No demo work, no prolonged noise. Call (361) 309-6223 and we’ll walk the building layout with you before scheduling.
Yes, more often than you’d expect. New construction in the lake-area subdivisions tends to have ducts run fast during framing, and many boots are never mechanically fastened. The flex pulls away from the register box within the first season, opening a gap that pulls drywall dust and insulation particles into the system. Return chases behind drywall are also frequently left unsealed at the top plate, so the system pulls attic air from day one. A post-build seal closes those gaps and forces the system to operate as designed. If you’ve been in your Lake Ray Hubbard home for a year and still see fine white dust on surfaces, the duct connections are the likely culprit. Call for a camera inspection and we’ll pinpoint it.
Duct cleaning removes what’s inside the ducts: dust, debris, drywall particles, pet hair. Duct sealing closes the gaps where outside air and contaminants enter the ducts. Cleaning is for what’s there; sealing is for what keeps coming back. In Rowlett, many homes need both. An older home near downtown with original flex typically needs sealing first so the leaks stop pulling attic air, then cleaning to remove the accumulated deposits. A newer lake-area home often needs sealing after buildout and a thorough cleaning to pull the construction dust out of the system. We’ll camera the ducts, show you what’s going on, and recommend the right order. Some homes only need one or the other. The price for each is written separately and agreed before any work starts. Call (361) 309-6223 to talk through your situation.
Humidity near the lake shortens the life of tape-based seals. Foil tape adhesive breaks down in months when exposed to the moisture swings Rowlett gets from spring through fall. That’s exactly why we don’t rely on tape for the primary seal. We use mastic, a brush-on sealant that cures into a flexible, water-resistant bond rated for HVAC use. Mastic doesn’t peel the way tape does and it tolerates the humidity cycles in Rowlett attics far better. For old flex duct, we also replace sections where the jacket has already failed from moisture exposure. The material choice is part of why our 365-Day Done Right Promise holds up in this climate.
Call Hollis Air Duct Dallas for Duct Sealing in Rowlett
You’ll get a written price before any work starts, a camera inspection that shows you the actual leaks, and a one-year warranty in writing. No price changes at the door, no per-vent games. Call (361) 309-6223 for a free estimate on your Rowlett home.
Written by Roy Castellanos, Owner at Hollis Air Duct Dallas, serving Rowlett and the surrounding northeastern Dallas suburbs under The Garrison Standard.