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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AfterFast, Reliable Duct Repair & Sealing Across Round Rock
Duct repair and sealing in Round Rock typically costs $280-$650 for most residential jobs, with flex duct replacement running $180-$340 per run and whole-system mastic sealing averaging $450-$890 depending on access and duct count. We’re CleanRun Air Duct Cleaning Round Rock, and our crews work the Dell-boom subdivisions from Forest Creek to Teravista every week. Dispatch is coordinated from our Austin office, but the trucks that roll to Round Rock carry Rotobrush and Nikro equipment, background-checked technicians in uniform, and the written price sheet you’ll sign before any panel comes off. Call (737) 259-5752 - estimates are free, and every quote is binding under Haven Standard Clause 1.
Why CleanRun Air Duct Cleaning Round Rock Is Round Rock’s Preferred Duct Repair & Sealing Company
We’ve been documenting the inside of Round Rock ductwork since 2013. That’s 52,000+ homes, every one with a written price before work started and a photo record when the crew left. The 365-Day Done Right Promise applies here exactly as it does everywhere we operate - if the work isn’t right, we make it right, backed in writing, not subject to manager approval.
Round Rock homeowners research before they call. We built our process for that. Haven Standard Clause 3, Verified Crews, means you’ll know your technician’s name before arrival, and every crew member is background-checked. The license number is published on this page, not buried in a footer. Our equipment roster - Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, Guardsman - is named so you can verify what shows up at your door.
We don’t do urgency theatre. Duct repair is scheduled work, and we answer calls with a live person 24/7 because that’s how scheduling should work, not because your attic is an emergency room. What we do promise: a written scope, a written price, and a documented photo record of every run before we leave.
Our Duct Repair & Sealing Services in Round Rock
Flex Duct Repair
Round Rock’s Dell-boom subdivisions east and northeast of I-35 are packed with 1995-2015 builder-grade flex duct that has spent 15-25 years thermal-cycling in attics that routinely spike past 140°F. We find sagging runs, pulled boot connections, and collapsed flex at rates that Georgetown and Pflugerville - built in different eras and sited differently on the Balcones Escarpment - simply don’t match. On a call in the Forest Creek subdivision off Red Bud Lane, our tech found a 2003-vintage flex supply run that had pulled entirely off its boot at a bedroom register - attic heat had baked the inner liner until it sagged, and a camera inspection showed the run packed with cedar pollen and drywall dust. After source removal under negative pressure with HEPA filtration, we re-seated the boot, re-insulated the run, and sealed the plenum and collar joints with mastic; the blower motor amp draw dropped and the homeowner reported the back bedrooms finally holding temperature.
Mastic Sealant Application
Mastic and foil-tape seals dry out and fail on Round Rock’s slab-on-grade tract homes after two decades of near-continuous May-September runtime. Reopening leaks in supply and return ducts won’t be fixed by a MERV rating bump alone. We apply professional-grade mastic to collar joints, plenum connections, and register boots, then photograph every sealed joint for the job record. The result is a documented seal, not a guess.
Air Leak Repair
Leak detection in Round Rock starts with a pressure test of the duct system, followed by smoke pencil or infrared verification at suspected failure points. The most common finds: disconnected boots at the drywall plane, cracked plenum seams on upflow furnaces in closet installations, and penetrations where electrical or plumbing trades cut through duct walls during original construction. Each repair is photographed before and after, with the written scope updated in real time.
Metal Duct Repair
Older Round Rock homes and outbuilding systems sometimes use galvanized metal trunk lines. We repair rusted sections, reseal longitudinal seams, and replace damaged dampers. Metal work costs more than flex repair - typically $320-$580 per section - but lasts longer in high-heat attic environments where flex would fail again.
Duct Insulation
When Round Rock attic temperatures exceed 140°F, under-insulated flex duct acts like a radiator in reverse, dumping cooled air into the attic before it reaches the register. We replace degraded insulation with specified R-8 flex or wrap existing metal with formaldehyde-free fiberglass, depending on what the camera shows.
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.
BeforeAfterTrusted Brands We Service in Round Rock
Our Round Rock crews carry Honeywell media air cleaners and Aprilaire whole-home humidifiers for integration with repaired duct systems, plus Nikro HEPA-filtered negative-air machines for source removal before sealing work begins. We don’t invent performance claims beyond manufacturer specifications. What we do: name the equipment so you can look it up, photograph it in your attic, and verify the model number against the written scope you signed. Parts for common Round Rock installations are stocked locally, so most repairs don’t wait on shipping.
Common Duct Repair & Sealing Problems We See in Round Rock Homes
- Builder-grade flex duct from the 1998-2008 Dell-boom wave sagging and collapsing in 140°F+ attics, detaching at boot connections and trapping debris that a register-level cleaning can’t reach. The camera usually shows a 2-4 inch debris build-up at the first elbow downstream of the disconnect.
- Mastic and foil-tape seals drying out and failing on slab-on-grade tract homes after two decades of near-continuous May-September runtime, reopening leaks in supply and return ducts that a MERV rating bump alone won’t fix. We pressure-test these systems at 25 Pascals to quantify the leakage before quoting repair scope.
- Cedar fever season (Dec-Feb) driving biological loading into already-compromised flex runs on rural-edge properties near unpaved roads, where dust drawn through the air handler accelerates the lint pathway and clogs the blower motor. These properties need more frequent inspection intervals than interior Round Rock subdivisions.
- Thermal cycling fatigue at plenum connections on two-story homes in Teravista and Walsh Ranch, where temperature swings between 140°F summer attic peaks and 40°F winter lows crack fiberglass duct board and loosen mechanical fasteners over 15-20 years of service.
Pricing for Duct Repair & Sealing in Round Rock, TX
| Service | Typical Range in Round Rock |
|---|---|
| Single flex duct run repair/replacement | $180-$340 |
| Mastic sealant, whole system (up to 10 runs) | $450-$890 |
| Air leak detection and targeted repair | $280-$520 |
| Metal duct section repair | $320-$580 |
| Duct insulation replacement (per run) | $140-$260 |
| Outbuilding/system extension repair | $380-$720 |
These are whole-system prices, not per-vent teasers. What moves the number: attic access difficulty, duct material (flex vs. metal vs. duct board), whether the plenum itself needs resealing, and how many boot connections have failed. Every quote is written and signed before work starts - Haven Standard Clause 1, no exceptions. Rural properties on unpaved roads may carry a modest travel adjustment, quoted upfront. Call (737) 259-5752 for an exact number; estimates are free and include the camera inspection.
We Also Serve Cities Near Round Rock
Our Duct Repair & Sealing crews work Pflugerville, Hutto, Georgetown, and Cedar Park regularly, but Round Rock is where we see the specific Dell-boom flex-duct failure pattern most concentrated. Each city’s housing stock and terrain position produce different duct problems; we adjust scope and pricing accordingly, always in writing before work begins.
Serving Round Rock, TX - Our Local Coverage Area
We’re based in the Round Rock 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 Round Rock
Every 2-3 years for rural Round Rock properties with unpaved road frontage and supplemental wood heat, versus 4-5 years for interior subdivisions with paved streets and gas-only heating. The dust loading from unpaved roads and the particulate output from wood stoves or inserts accelerate debris accumulation and blower motor strain. Cedar fever season adds biological loading December through February. We document the actual interior condition with camera inspection and give you a written recommendation based on what we found, not a calendar guess. Call (737) 259-5752 to schedule - estimates are free.
Thermal cycling in 140°F+ attics degrades the inner liner and adhesive bond of builder-grade flex duct installed during the 1998-2008 construction wave. The duct sags, pulls tension from the boot connection, and eventually separates entirely - a failure mode we see almost routinely in Dell-boom subdivisions like Forest Creek and Teravista. Re-seating the boot without addressing the sag just repeats the cycle. We re-support the run, re-insulate, and seal with mastic for a permanent repair. Call (737) 259-5752 for a camera inspection and written quote.
Yes - Round Rock sits in the nation’s densest Ashe juniper pollen corridor, and December-February concentrations can exceed 20,000 grains per cubic meter. When flex duct is compromised by sagging or disconnected boots, that biological load bypasses the filter and deposits directly in the duct runs, where moisture from summer attic humidity supports microbial growth. Sealed, intact ductwork with proper filtration handles cedar season; compromised ductwork amplifies it. The camera shows the difference. Call (737) 259-5752 for inspection and written scope.
A written price before work starts; camera inspection of every accessible run; pressure testing if leak repair is indicated; repair or replacement of failed components with documented before-and-after photography; mastic sealing of all accessible joints; and a final photo record delivered as part of the job documentation. The 365-Day Done Right Promise applies in writing. No per-vent pricing, no post-work invoice surprises. Call (737) 259-5752 to book - estimates are free.
Yes, we repair and seal ducted systems in workshops, guest houses, and barn conversions throughout the Round Rock rural fringe. These systems often use flex duct in unconditioned spaces with even more extreme temperature swings than residential attics, and they frequently lack proper filtration. Scope and pricing are quoted in writing after camera inspection, same as main house systems. Call (737) 259-5752 - we’ll coordinate access and give you a binding estimate.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Round Rock, serving Round Rock since 2013.