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 Repair & Sealing Across Brushy Creek
Most Brushy Creek duct systems were installed during the suburban boom of the mid-1990s through mid-2000s, and they’re now hitting the age where builder-grade flex duct fails predictably. If your home was built in that window, you’re likely dealing with sagging runs, torn inner liners, or conditioned air bleeding into your attic through gaps that didn’t exist five years ago. We’re the Duct Repair & Sealing team at CleanRun, and we dispatch to Brushy Creek from our Austin office with crews who know the local housing stock. Call (737) 259-5752 for a written estimate before any work starts.
Why CleanRun Air Duct Cleaning Round Rock Is Brushy Creek’s Preferred Duct Repair & Sealing Company
We’ve been documenting every duct run we touch since 2013. That practice hasn’t changed for the 52,000-plus homes we’ve served. In Brushy Creek specifically, our reputation rests on recognizing patterns that out-of-area crews miss: the way 1990s flex duct sags in attics that hit 140°F by July, how Ashe juniper pollen finds its way through filter gaps during January peaks, and why homes near the greenbelt corridor show microbial growth patterns that don’t appear in drier terrain west toward Cedar Park.
Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. Every Brushy Creek job starts with a written price delivered before a single panel comes off, and concludes with a Documented Photo Record of every duct run, included as standard. The 365-Day Done Right Promise backs every repair in writing, not as a policy subject to manager approval.
We also offer a Free Second Opinion on any written estimate from another company. Bring us their number; we’ll put ours next to it in writing.
Our Duct Repair & Sealing Services in Brushy Creek

Flex Duct Repair
Brushy Creek’s builder-spec homes from the 1990s and 2000s used flexible duct almost exclusively, routed through unconditioned attics that now destroy it. The inner liner degrades, the insulation compresses, and the wire helix gives way. We replace damaged sections with new flex duct rated for the temperature swings your attic sees, re-secure supports to eliminate sag, and photograph every connection before we close up. A typical flex duct repair in Brushy Creek runs $280-$520 per run, depending on attic accessibility and length.

Mastic Sealant Application
Brush tape and caulking fail in Brushy Creek attics. We apply professional-grade mastic sealant to every boot-to-register connection, plenum seam, and collar joint. The material remains flexible from 130°F summer peaks down to rare freeze events, and it bonds to both metal and flex duct surfaces. Mastic sealing for a full system in Brushy Creek typically costs $340-$680, with partial sealing available for isolated problem zones.

Air Leak Repair
Return-air leaks in Brushy Creek homes pull attic debris and pollen directly into your living space, bypassing the filter entirely. We pressurize the system, locate leaks with smoke testing or theatrical fog, then repair with mechanical fastening plus mastic. Air leak repair in Brushy Creek generally runs $180-$420, depending on leak count and accessibility. Every repair is photographed before and after.

Metal Duct Repair
Some Brushy Creek homes, particularly custom builds near the Brushy Creek Lake Park area, used galvanized metal trunk lines with flex branch takeoffs. We repair separated seams, corroded sections, and failed dampers using sheet metal screws, draw bands, and mastic. Metal duct repair in Brushy Creek typically ranges $220-$480 per section.

Duct Insulation
When Brushy Creek attic heat cooks the insulation off your flex duct, we install new foil-faced insulation with proper vapor barriers. This matters especially on supply runs near the roof deck where radiant heat transfer is highest. Duct insulation replacement in Brushy Creek runs $260-$540 per run.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Brushy Creek
Our crews carry professional-grade equipment from Rotobrush, Nikro, and Honeywell, with repair materials stocked for same-visit completion on most Brushy Creek jobs. We don’t order parts after the fact and make you wait. The equipment roster also includes Aprilaire components for integrated humidity and filtration upgrades where duct repairs expose opportunities for improvement. Every brand we name can be verified independently; we don’t make performance claims beyond manufacturer specifications.
Common Duct Repair & Sealing Problems We See in Brushy Creek Homes

- Sagging flex duct at the low point of long attic runs. In Brushy Creek’s 1990s-2000s homes, builders often stretched flex duct across truss bays without adequate support. The sag creates a debris trap and restricts airflow. We see this constantly in neighborhoods east of Parmer Lane where homes share that construction era.
- Torn inner liners pulling fiberglass into supply air. Summer attic temperatures of 130-150°F harden the vinyl liner on aging flex duct until it cracks. Fiberglass particles then circulate through your registers. Our camera inspections catch this before it becomes a respiratory issue.
- Separated boots at ceiling registers. The mastic used in original Brushy Creek construction dries and shrinks over 20-plus years. Gaps form between the boot and drywall, pulling unfiltered attic air into returns and bleeding conditioned air into the attic on supply sides.
- Ashe juniper pollen coating duct interiors. From December through February, Central Texas’s “cedar fever” sends ultra-fine pollen through every gap in your return path. Standard filters don’t catch it. We find gray-green deposits in Brushy Creek ducts every winter, especially in homes with return plenum leaks.
Pricing for Duct Repair & Sealing in Brushy Creek, TX
We publish ranges because Haven Standard Clause 1 requires a written price before work starts, every time. Here’s what duct repair and sealing costs in Brushy Creek’s market:
| Service | Typical Range |
|---|---|
| Flex duct repair (per run) | $280-$520 |
| Metal duct repair (per section) | $220-$480 |
| Mastic sealant (full system) | $340-$680 |
| Air leak repair (isolated) | $180-$420 |
| Duct insulation replacement (per run) | $260-$540 |
Factors that move the needle: attic accessibility (blown insulation vs. walkable decking), number of affected runs, and whether we find secondary issues like microbial growth during inspection. We don’t do per-vent pricing or $79 teaser rates that balloon once we’re on site. The price we write is the price you pay. Call (737) 259-5752 for a free estimate with exact numbers for your home.
We Also Serve Cities Near Brushy Creek

Our crews work Duct Repair & Sealing in Brushy Creek plus surrounding communities including Round Rock, Wells Branch, Pflugerville, and Hutto. Scheduling and dispatch are coordinated from our Austin office, with local crews serving each area without the delays of centralized depots.
Serving Brushy Creek, TX - Our Local Coverage Area
We’re based in the Brushy Creek 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 - Duct Repair & Sealing in Brushy Creek

Builder-grade flex duct installed during the 1990s-2000s boom has a functional lifespan of 20-25 years in Central Texas attics. Your system is now at the age where inner liners degrade, support straps fail, and mastic dries out. Brushy Creek’s extreme attic heat accelerates this timeline compared to cooler climates. Call (737) 259-5752 and we’ll inspect with a camera to show you exactly what condition your ducts are in.
Ashe juniper pollen is fine enough to pass through standard return filters when your duct system has gaps at plenums, boots, or access panels. From December through February, it coats duct interiors and recirculates year-round. Filter changes help, but they don’t seal the leaks that let pollen bypass filtration entirely. We locate and seal those entry points with mastic and mechanical repair.
The greenbelt corridor raises localized humidity compared to drier subdivisions west toward Cedar Park’s higher elevation. That moisture, combined with Brushy Creek’s summer condensation cycles on cool supply boots, creates conditions for microbial growth on flex-duct liners. We recently serviced a 2002-built home near the greenbelt where our camera inspection revealed torn inner liners and growth around supply boots-a pattern we addressed with source removal, agitation tools, and resealing with mastic.
Duct sealing means finding every leak in your supply and return paths, then repairing with mastic sealant and mechanical fastening. In Brushy Creek homes with 20-plus-year-old original seals, we typically measure 15-30% air loss to the attic before sealing. After sealing, that conditioned air reaches your rooms instead of your insulation. You’ll see the difference in even temperatures and potentially lower energy bills, though we don’t promise specific savings.
Yes. While most Brushy Creek homes use flex branch ducts, some custom builds and later renovations include galvanized metal trunk lines. We repair separated seams, corroded sections, and failed dampers using sheet metal techniques plus mastic. Our crews carry materials for both construction types on every Brushy Creek visit.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Round Rock, serving Brushy Creek since 2013.




Before
After
Before
After