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 Austin
Duct repair and sealing in Austin typically runs $280-$750 for most residential jobs, with flex-duct repairs on the lower end and full-system resealing with insulation replacement on the higher end. Our Austin office dispatches crews daily to homes on acreage west of the city, in Circle C Ranch, Steiner Ranch, and the growing rural communities along Fitzhugh Road and Hamilton Pool Road. Call (737) 259-5752 for a written estimate before any work starts.
We’ve been driving these roads since 2013. Our technicians know which rural spreads have 2000s builder-grade flex duct that’s been cooking in 150°F attics for twenty summers, and which 1980s ranch houses off paved county roads still run original galvanized metal duct with hand-folded seams leaking conditioned air into the crawlspace. That local knowledge changes what we find, what we quote, and what we fix.
Why CleanRun Air Duct Cleaning Round Rock Is Austin’s Preferred Duct Repair & Sealing Company
CleanRun is independently owned and operated under the Haven Standard, established in 2013, and has served more than 52,000 homes with a written price before every job and a documented photo record when the crew leaves. Our Austin customers receive the same accountability: Haven Standard Clause 1 requires a written, itemized price before a single panel comes off your system. No “call for a quote.” No per-vent bait-and-switch. The price you sign is the price you pay.
Our crews are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. We publish our license number on every page, not buried in a footer. Our equipment roster includes Rotobrush and Nikro systems for mechanical agitation, plus Honeywell and Aprilaire components for sealing and filtration upgrades. Customers can verify each brand independently before agreeing to any scope of work.
The 365-Day Done Right Promise backs every Austin job in writing: if the work is not right, we make it right. Not a policy subject to manager approval. A written guarantee, delivered with the final invoice.
We also offer a Free Second Opinion on any written estimate from another company. Bring their quote; we’ll put our number next to it, itemized and in writing, at no cost.
Our Duct Repair & Sealing Services in Austin
Duct Sealing
Austin’s slab-on-grade homes push all ductwork through attics that hit 140-160°F in July and August. That thermal cycling loosens tape adhesive, cracks mastic, and pulls collar joints apart at the plenum - the main distribution box where your air handler connects to the duct network. Our duct sealing service uses professional-grade mastic sealant and mechanical fasteners, not hardware-store tape, to close leaks at joints, seams, and register boots. On rural properties west of Austin, we often find supply and return leaks pulling cedar pollen and road dust directly from the attic into living spaces; sealing these leaks can drop indoor particle counts before any cleaning begins.
Flex Duct Repair
The 1990s-2000s suburban buildout across Circle C Ranch, Steiner Ranch, and the Slaughter Lane corridor installed millions of linear feet of insulated flex duct. The inner plastic liner degrades from years of Austin attic heat; the outer jacket can look intact while the inner tube has cracked, dumping fiberglass insulation into your airflow. Our flex duct repair replaces damaged sections with new R-8 insulated flex, properly supported and sealed, rather than patching with tape that fails in the next heat wave.
Metal Duct Repair
Older central Austin neighborhoods - Hyde Park, Crestview, Travis Heights - still run 1950s-1960s galvanized sheet metal with hand-locked seams and no sealing at all. These systems leak 20-30% of conditioned air into walls and crawlspaces by default. Our metal duct repair reseams damaged sections, applies mastic to original joints, and adds mechanical reinforcement where rust or physical damage has compromised the duct wall.
Duct Insulation
When Austin attic temperatures exceed 140°F, uninsulated or degraded duct insulation turns your supply lines into radiators that heat your cooled air before it reaches the register. We replace degraded insulation on attic runs with proper R-8 or higher wraps, sealed at all seams, so the 55°F air leaving your coil arrives at roughly the same temperature in your living room.
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 Austin
Our equipment includes Rotobrush mechanical agitation systems for debris removal, Nikro negative-pressure extractors, Honeywell media air cleaners and electronic air cleaners, and Aprilaire whole-home filtration and humidification components. We stock common duct repair materials - flex duct, mastic, collars, dampers, and insulation wraps - so most Austin jobs are completed in a single visit without waiting on parts. Every brand we name can be verified independently; we don’t use equipment we can’t document.
Common Duct Repair & Sealing Problems We See in Austin Homes
- Cedar pollen reservoirs in rural duct systems. Austin’s December-through-February cedar fever season dumps airborne pollen counts above 20,000 grains per cubic meter. On acreage with unpaved roads and open land, that pollen combines with road dust and stays suspended year-round. Ducts become reservoirs that recirculate allergens for weeks after outdoor counts drop.
- Cracked flex-duct inner liners from thermal cycling. The attic temperature swing in a typical Austin year - from near-freezing winter nights to 150°F summer afternoons - degrades the plastic inner liner of 1990s-2000s flex duct. The outer jacket looks fine. The inner tube is shedding fibers into your air.
- Outbuilding duct runs as separate contamination sources. Detached shops and wood-heated outbuildings on rural Austin properties often have their own supply or return branches. These longer runs get skipped on routine service visits, accumulate creosote ash and sawdust, and back-feed into the main house through return leaks.
- Original metal duct with zero sealing in pre-1970s homes. The 1950s-1960s stock in Crestview, Hyde Park, and North Loop was built with hand-folded seams and no mastic. These systems leak conditioned air continuously and pull attic dust, pollen, and occasional rodent debris into the airflow.
Pricing for Duct Repair & Sealing in Austin, TX
A typical flex-duct repair or section replacement in Austin runs $280-$450. Full-system mastic sealing for a 2,000-square-foot home with attic ductwork runs $450-$650. Metal duct repair with seam rebuilding and partial section replacement runs $400-$750 depending on accessibility. Duct insulation replacement on attic runs adds $200-$400 for most residential systems.
Rural properties on acreage often need combined services: source removal, leak sealing, and insulation replacement on outbuilding branches. These jobs typically fall in the $600-$950 range. We deliver a written, itemized price before any work starts - Haven Standard Clause 1 - and include the documented photo record as standard.
Call (737) 259-5752 for an exact quote. Estimates are free.
We Also Serve Cities Near Austin
Our Austin office dispatches crews to Austin homes daily, and we regularly serve properties in Pflugerville, Cedar Park, Manor, and Round Rock. Rural routes west and south of the city - along Fitzhugh Road, Hamilton Pool Road, and the Dripping Springs corridor - are scheduled with realistic drive-time estimates so you’re not waiting on a crew that’s stuck in city traffic. Our Duct Repair & Sealing team carries the full equipment roster for same-visit completion on most jobs.
Serving Austin, TX - Our Local Coverage Area
We’re based in the Austin 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 Austin
Every 2-3 years, not the generic 3-5 year recommendation. Unpaved road dust and Austin’s extreme cedar pollen loads fill rural ducts faster than subdivision homes. Wood-heated outbuildings add creosote and ash that migrates through return leaks. Call (737) 259-5752 and we’ll inspect your system and put a realistic interval in writing based on what the camera shows.
Return air leaks are pulling combustion byproducts and particulate from the outbuilding into your main house duct system. Detached shop duct runs often have cracked collars, failed tape, or missing end caps that create negative-pressure pathways. We seal the leaks at the source and document the before-and-after with camera footage.
Cracked inner liner on flex duct, almost always. The outer silver jacket looks intact, but the plastic inner tube has degraded from years of attic heat cycling - worse in Austin’s 140°F-plus summers and compounded by wood-stove temperature swings. The fiberglass insulation between inner and outer layers escapes into your airflow. We replace the damaged sections with new R-8 flex, properly supported and sealed.
Yes, if it shares ductwork with your main house. These longer runs are often skipped in routine service, become separate dust and ash reservoirs, and back-feed contamination through return leaks. We schedule rural properties with realistic drive-time estimates and inspect outbuilding branches as part of the standard scope.
Yes, particularly for return leak sealing. Unsealed return pathways pull wood smoke, ash, and shop dust directly into your main house airflow. Mastic sealing at the plenum, collar joints, and register boots closes these pathways and reduces the particulate load even before cleaning begins. The improvement is measurable and documented in the photo record.
Ready for a written estimate? Call CleanRun at (737) 259-5752. We’ll answer with a live person, schedule a technician identified by name, and deliver an itemized price before any work starts. Every job includes a documented photo record and the 365-Day Done Right Promise in writing.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Round Rock, serving Austin since 2013.