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 Lakeway
Duct repair and sealing in Lakeway typically runs $380-$1,200 per system depending on whether we’re sealing accessible seams with mastic or replacing collapsed flex runs, and most jobs are scheduled within 3-5 business days with a written price delivered before any panel comes off. Our crews serve Lakeway from our Austin coordination office, carrying Rotobrush and Nikro equipment calibrated for the larger multi-zone homes that dominate this market. Call (737) 243-9544 for a free written estimate.
We’ve worked in enough Lakeway homes to know the local pattern: 300-plus linear feet of ductwork spread across two or three zoning trunks, with flex runs that have degraded from cedar pollen loads and Lake Travis humidity pockets most homeowners don’t realize are affecting their system. Our Duct Repair & Sealing team maps static pressure across every trunk before touching a single seam, because in these houses, fixing one run can starve airflow on another.
Why CleanRun Air Duct Cleaning Austin Is Lakeway’s Preferred Duct Repair & Sealing Company
CleanRun has held the same practice since 2013: written price before work starts, documented photo record when the crew leaves, and the 365-Day Done Right Promise backed in writing on every job. In Lakeway specifically, that means we understand how a repair on the second-floor system in a Rough Hollow home can drop static pressure on the main-floor trunk if we don’t pressure-map first.
Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. The equipment roster includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - brands customers can verify independently. Every call is answered by a live person, and we publish our license number on every page, not buried in a footer.
We’ve served 52,000-plus homes since 2013, every one with a written price agreed before work began and a photo record delivered after. Our Free Second Opinion on Any Written Estimate means you can bring a competitor’s Lakeway quote and we’ll put our number next to it in writing, no charge.
Our Duct Repair & Sealing Services in Lakeway

Duct Sealing
Lakeway’s large custom homes lose capacity at trunk takeoffs and plenum seams more dramatically than smaller Austin tract houses because the runs are longer and the static pressure higher. We seal with mastic sealant rated for Texas temperature swings, applied after a camera inspection identifies exactly where conditioned air is escaping into your attic or crawl space. A typical duct sealing job in Lakeway runs $380-$650 per system for accessible work, with written scope before we start.

Flex Duct Repair
Flex duct in Lakeway’s cedar belt takes a beating. Pollen bridges across blower motors, negative pressure collapses runs off the main trunk, and Lake Travis humidity pockets accelerate the degradation of the inner liner. We replace collapsed or torn flex with new insulated runs, reconnect with mechanical collars (not tape), and verify airflow at the register before we leave. Flex duct repair in Lakeway typically costs $180-$420 per run depending on length and accessibility.

Metal Duct Repair
The rigid metal trunks in Lakeway’s 1990s-2010s builds develop seam separation and rust spots where humidity from the lake side meets attic heat. We patch or replace sections, reseal with mastic, and pressure-test the repair against the rest of the system. Metal duct repair in Lakeway runs $280-$580 per section, with full documentation of what was found and what was done.

Air Leak Repair
Air leaks in Lakeway’s multi-zone systems often hide where the homeowner can’t see them: behind drywall at register boots, at poorly sealed return plenums, where construction debris has blown open a seam. We pressurize the system, use smoke testing to locate leaks, and repair with materials appropriate to the location. Air leak repair in Lakeway typically ranges $320-$720 per system depending on leak count and access.

Duct Insulation
When Lakeway’s attic temperatures top 140 degrees in July, uninsulated or degraded duct wrap bleeds cooling capacity before the air reaches your living room. We install new insulation rated for Central Texas extremes, with vapor barrier orientation correct for our humidity profile. Duct insulation in Lakeway runs $2.80-$4.20 per linear foot, measured and written into the scope before work begins.

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.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Lakeway
CleanRun carries professional-grade equipment from Rotobrush, Nikro, Honeywell, and Aprilaire - brands recognized in the HVAC trade for duct repair, sealing, and air quality work. We stock common collars, mastic compounds, and flex duct sizes for Lakeway’s predominant home vintages, which means most repairs don’t wait on parts. Our technicians can tell you exactly which manufacturer’s specification applies to the material going into your system, and why. Equipment details are included in every written scope under Haven Standard Clause 1, so you know what was used and can look it up yourself.
Common Duct Repair & Sealing Problems We See in Lakeway Homes

- Long zoned runs amplify leakage at trunk takeoffs. In Lakeway’s custom homes with 300-plus feet of ductwork, a small gap at a takeoff becomes a major capacity loss by the time air reaches the far bedroom. We pressure-map the full system before sealing anything.
- Cedar pollen bridging degrades flex duct and mastic seals. The Ashe juniper belt dumps microscopic particles that pack into plenum boxes and blower motors, then absorb humidity from Lake Travis air and swell. Hidden leaks develop that only a camera inspection reveals.
- Construction debris blocks registers in multi-zone systems. Lakeway’s ongoing development means sawdust, drywall fragments, and insulation scraps frequently end up in ductwork, creating high-static-pressure conditions that strain blowers and cause premature failure.
- Moisture pockets from lakeside humidity degrade insulation. Homes near the water - particularly in developments with golf course buffers - show faster insulation breakdown than inland Hill Country properties, requiring earlier replacement to prevent condensation inside the duct.
Pricing for Duct Repair & Sealing in Lakeway, TX
| Service | Typical Range in Lakeway |
|---|---|
| Duct sealing (per system, accessible) | $380 - $650 |
| Flex duct repair (per run) | $180 - $420 |
| Metal duct repair (per section) | $280 - $580 |
| Air leak repair (per system) | $320 - $720 |
| Duct insulation (per linear foot) | $2.80 - $4.20 |
These ranges reflect Lakeway’s market: larger homes with more linear footage, multi-zone complexity, and the additional flush pass often needed for cedar pollen loads. What changes the number? Accessibility (crawl space vs. attic), number of zones, extent of pollen or moisture damage, and whether we’re sealing existing material or replacing degraded sections. We deliver one flat price per system, agreed in writing before any work starts - no per-vent add-ons, no surprise charges once the truck is in your driveway. Call (737) 243-9544 for a free written estimate.
We Also Serve Cities Near Lakeway

Our crews work the full corridor from Lakeway through Austin, Lost Creek, Jollyville, and Wells Branch. Scheduling is coordinated from our Austin office, with Lakeway jobs routed for efficient dispatch to homes in Rough Hollow, Lake Travis communities, and the broader 78734 and 78738 areas.
Serving Lakeway, TX - Our Local Coverage Area
We’re based in the Lakeway 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 Lakeway

Because Lakeway’s large custom homes typically run 300-plus linear feet of ductwork across two or three zoning trunks, and a repair that fixes one run can shift static pressure and starve airflow on another if the whole system isn’t pressure-mapped first. Per-system pricing accounts for this interdependence. We map every trunk, deliver a written price per system, and guarantee the work for 365 days. Call (737) 243-9544 for an exact quote - estimates are free.
Every CleanRun job concludes with a Documented Photo Record: inside every duct run, before and after, delivered as part of your standard job record. You also receive the written scope of work, the written price agreement, and the 365-Day Done Right Promise - all dated and signed. Haven Standard Clause 1 requires this documentation on every job, no exceptions.
Yes. Lakeway sits in the epicenter of Texas’s Ashe juniper belt, and the December-February cedar pollen season deposits microscopic particles that infiltrate duct systems at levels unseen in Austin proper or suburbs farther east. Because AC systems are dormant during peak cedar season, pollen settles deep into return ducts and air handlers, then gets re-circulated when heating or spring cooling kicks on. This pollen bridges across blower motors, collapses flex runs under negative pressure, and degrades mastic seals - making post-cedar-season inspection a genuinely Hill Country-specific need. Call (737) 243-9544 to schedule after the season clears.
Proximity to Lake Travis creates localized humidity in Lakeway’s lakeside neighborhoods that runs noticeably higher than surrounding dry Hill Country, accelerating microbial growth inside ductwork and degrading mastic seals and flex duct liners faster than inland properties. Combined with 7-8 months of near-continuous AC operation, dust and moisture accumulate at rates that require more frequent inspection and earlier resealing. Our crews working the lakeside developments factor this into material selection and warranty terms. Call (737) 243-9544 for a lakeside-specific assessment.
No. We assess each system independently, pressure-map the trunk serving it, and deliver a separate written price for each. Many Lakeway homeowners address the most degraded system first, then schedule the others based on the photo documentation we provide. The 365-Day Done Right Promise applies to whatever work you authorize, when you authorize it. Call (737) 243-9544 to start with the system showing the worst performance.
At a Rough Hollow home backing up to the cedar greenbelt, we found the return plenum packed with juniper pollen so thick it had bridged across the blower motor, and two flex runs off the main trunk had collapsed from negative pressure. After a source removal pass and camera inspection, we resealed the plenum with mastic and reconnected the flex with new collars, restoring static pressure across all three systems. The photo record showed the homeowner exactly what had been blocking their airflow.
Ready for a written estimate? Call (737) 243-9544. We’ll deliver a flat price per system, document every run with before-and-after photos, and back the work with our 365-Day Done Right Promise.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Lakeway since 2013.




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