Fast, Reliable Duct Repair & Sealing Across Brushy Creek
Most duct repair calls we get from Brushy Creek aren’t emergencies. They’re homeowners who’ve finally noticed the bedroom that never cools, the utility bill that climbed twenty percent, or the thin layer of dust that returns within a day of cleaning. We serve the 78717 subdivisions off Great Oaks Drive, Brushy Creek Road, and the Parmer Lane corridor, and we’re usually there within a couple hours of your call. Our Duct Repair & Sealing team knows these houses - the late-90s and 2000s builds with flex-duct routed through attics that hit 150°F in July. That local knowledge changes what we find, how we quote it, and whether the fix lasts. Call (866) 347-2063 for a free estimate. We’ll show you the camera footage before we lift a tool.
Why Bellows Air Duct & Vent Co. of Texas Is Brushy Creek’s Preferred Duct Repair & Sealing Company
We’ve worked in Brushy Creek since before the 183A Toll Road extension opened. Back then, these were new houses. Now they’re twenty to thirty years old, and the original flex-duct is showing it. Wade Kellerman, our owner, built this company in 1984 on the idea that a tradesman should explain the problem, show the proof, and stand behind the fix. That hasn’t changed.
Our technicians are background-checked, uniformed, and equipped with Rotobrush and Nikro inspection cameras. Every job gets photographed before and after. Our 90-Day Done Right Promise means if something isn’t right, we return at no charge - no paperwork, no arguing. Calls to (866) 347-2063 are answered by a live person, 24 hours a day. Not an app. Not a queue.
We don’t bait-switch. The price we quote over the phone is the price on the invoice. For repairs over $250, we offer $50 off. Seniors and veterans receive a permanent 5% discount. And if you have another company’s written estimate, we’ll give you a free second opinion.
Our Duct Repair & Sealing Services in Brushy Creek
Flex Duct Repair
Brushy Creek’s housing stock - two-story slab-foundation tract homes built 1996 to 2008 - was almost entirely fitted with flexible ductwork. In unconditioned attics that routinely exceed 150°F, the inner liner separates from the outer wrap over two decades. The duct sags at mid-span, creating a low spot where dust, insulation fibers, and Ashe juniper pollen pack into a dense mat. Standard brushing misses this if the technician doesn’t inspect each run physically. We replace collapsed sections with R-8 insulated flex-duct and support it properly so it stays put.

Duct Sealing
Connections to registers and plenums loosen over time, especially in the thermal expansion and contraction of a Brushy Creek attic. Unsealed joints pull unfiltered attic air into your system, along with pollen, fiberglass particles, and whatever else is up there. We seal with mastic - not tape, which dries and fails - at every connection point. On a typical 78717 home, this reduces air leakage by 20 to 30 percent. Lower bills. Cleaner air. No mystery drafts.

Metal Duct Repair
Some Brushy Creek homes, particularly earlier builds near the original Brushy Creek Village area, have galvanized metal ductwork. Where flex-duct fails by sagging, metal fails at seams and joints. Rust is uncommon here except where condensation collects in poorly insulated sections. We patch, re-seam, or replace sections as needed, always inspecting with a camera first so you see what we see.

Duct Insulation
Builder-grade duct insulation in these subdivisions was typically R-4 or R-6. In a 150°F attic, that’s not enough. The temperature differential creates condensation during humid spring and fall months, when the AC isn’t running hard enough to keep air moving. Wet insulation breeds mold. We upgrade to R-8 flex-duct or wrap existing metal with formaldehyde-free insulation, solving both the energy loss and the moisture problem.

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.
Trusted Brands We Service in Brushy Creek
We carry Rotobrush inspection systems and Nikro HEPA equipment on every truck, and we stock Honeywell media filters and Aprilaire humidifier components for Brushy Creek customers who want to upgrade while we’re already in the attic. No waiting on parts from Austin. Most flex-duct repairs and sealing jobs in the 78717 area are completed in a single visit because our technicians arrive with the right materials already loaded.
Common Duct Repair & Sealing Problems We See in Brushy Creek Homes
- Mid-span flex-duct collapse. The inner liner sags between supports, creating a debris trap that restricts airflow to the master bedroom or upstairs hallway. We find this in roughly half the Brushy Creek homes we inspect that were built before 2005.
- Loose register connections. The boot pulls away from the ceiling drywall, dumping conditioned air into the attic and pulling attic air into the room. You’ll feel it as a weak register or a room that never reaches temperature.
- Degraded insulation with condensation staining. Original R-4 or R-6 insulation compresses and loses effectiveness. During March and October, when outdoor dew points stay high but the thermostat isn’t calling for much cooling, condensation forms on the duct surface and soaks the surrounding insulation.
- Pollen infiltration through unsealed returns. Ashe juniper pollen, pushed by northwest winds from the Hill Country straight into Brushy Creek, is ultra-fine and highly allergenic. Unsealed return plenums and filter gaps pull this directly into the air handler, where it coats the coil and re-circulates through the supply ducts.
Pricing for Duct Repair & Sealing in Brushy Creek, TX
We don’t quote blind. Every job starts with a camera inspection so we can show you exactly what’s wrong and price it accurately.
| Service | Typical Range in Brushy Creek |
|---|---|
| Single flex-duct run replacement (R-8) | $280 - $450 |
| Mastic sealing of full system (average 12-16 runs) | $650 - $1,100 |
| Metal duct patch or seam repair | $180 - $340 |
| Duct insulation upgrade (R-4 to R-8 wrap) | $420 - $780 |
| Return plenum rebuild and seal | $350 - $600 |
Factors that move the number: attic accessibility, number of compromised runs, whether the air handler needs repositioning to relieve stress on connections, and if we’re also cleaning coils fouled with pollen buildup. We disclose the full price before work begins. No changes at the door. For repairs over $250, ask about our $50 discount. Seniors and veterans save 5% on every job. Call (866) 347-2063 for your free estimate - we’ll be there when we say.
We Also Serve Cities Near Brushy Creek
Our crews run the full corridor from Anderson Mill and Jollyville down through Brushy Creek to Cedar Park and Wells Branch. Same trucks, same equipment, same upfront pricing. If you’re in a neighboring community and found this page, we cover your area too.
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
The combination of flexible ductwork and unconditioned attics that exceed 150°F causes the inner liner to separate from its outer wrap over 20 to 30 years. This failure mode is far more prevalent in Brushy Creek’s master-planned subdivisions than in newer Leander builds or older Round Rock neighborhoods with rigid metal systems. We inspect for this on every job. Call (866) 347-2063 for a free estimate.
Yes. Our camera inspection covers every accessible run, and we photograph what we find. On a job in the Brushy Creek neighborhood off Great Oaks Drive, our crew found flex-duct collapsed at a mid-span run in the attic, packed with a dense mat of dust and Ashe juniper pollen. We replaced the run with R-8 insulated flex-duct and sealed all connections with mastic, restoring airflow and eliminating the debris trap. You’ll see the footage before we quote. Call (866) 347-2063 to schedule.
Yes. We upgrade failed R-4 or R-6 flex-duct to R-8 insulated flex-duct with proper support spacing. This solves both the structural collapse problem and the energy loss that drives up summer bills in Brushy Creek’s 150°F attics. Pricing for a single run replacement runs $280-$450. Call (866) 347-2063 for an exact quote - estimates are free.
Nearly always. The same thermal cycling that degrades flex-duct also loosens connections at registers and plenums. Sealing with mastic during repair prevents the new duct from pulling unfiltered attic air. We bundle sealing with most Brushy Creek repair jobs and price it upfront. Call (866) 347-2063 for details.
Central Texas’s Ashe juniper pollen season, December through February, produces some of the highest airborne pollen concentrations in North America. Northwest winds push this directly into the Brushy Creek area. Unsealed duct systems pull the ultra-fine pollen into the air handler, where it accumulates on coil surfaces and in duct interiors, reducing efficiency and aggravating allergies. Proper sealing and filtration are the fix. Call (866) 347-2063 for a free inspection.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Brushy Creek since 1984.