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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Repair & Sealing Across Lakeway
Duct repair and sealing in Lakeway, TX typically runs $280-$680 per system depending on accessibility and the extent of joint separation or flex damage, with most multi-zone homes falling in the $720-$1,850 range for complete sealing across all air handlers. Our Duct Repair & Sealing crews coordinate dispatch from our Austin office and carry mastic, metal tape, and replacement flex in standard diameters so we can seal what can be sealed and replace what cannot, usually in a single visit. Call (737) 252-1285 and we’ll put a written price in front of you before any panel comes off.
We’ve been working the Lakeway market since 2013, and the homes here are different from what we see in Leander or Cedar Park. The typical call comes from a 3,500 sq ft house off The Hills Drive or a custom build near Rough Hollow with two or three zones and flex runs that snake through attics for 40 or 50 feet. Those long runs sag. The joints loosen. And after every cedar season, the inside of that ductwork is coated with pollen grains smaller than the mesh in a standard filter.
Why CleanRun Air Duct Cleaning Leander Is Lakeway’s Preferred Duct Repair & Sealing Company
Tomas Reyes built this company on the idea that homeowners should see what they’re paying for before they pay for it. That matters especially in Lakeway, where the median home sale price has hovered well above the Austin metro average and buyers from 2015 to 2025 paid premium prices for square footage that included HVAC systems now showing their age. Our 52,000-plus documented jobs include hundreds in the 78734 and 78738 ZIP codes, and the photo records we deliver show the actual condition of duct interiors - not marketing language about “cleaner air.”
Our crews know the difference between a 1990s Trane system in a Steiner Ranch adjacency and a 2017 multi-zone Carrier in a new Rough Hollow build. That local system knowledge means we don’t waste time identifying components or ordering parts we should already carry. Haven Standard Clause 3 - Verified Crews - means the technician who arrives has been background-checked, is uniformed, and is identified by name before the truck turns onto your street.
Response to Lakeway is same-week for non-urgent sealing and repair, with scheduling coordinated specifically around the Hill Country traffic patterns that can turn a 30-minute drive into 90 minutes during lake-event weekends. We plan for that.
Our Duct Repair & Sealing Services in Lakeway
Duct Sealing
Sealing in Lakeway is usually a post-cedar-season job, scheduled March through May after the Ashe juniper release has coated duct interiors with pollen that mastic and tape need to adhere to clean metal. We seal plenum connections - the box where multiple duct runs meet the air handler - and every accessible joint with mastic sealant or foil-backed tape rated for duct application. A typical single-system seal in a 3,000 sq ft Lakeway home runs $280-$450; multi-zone homes with three air handlers typically see $720-$1,100 for complete joint sealing across all systems. Every sealed joint is photographed before and after, and airflow is measured at the registers with a digital manometer so you have numbers, not guesses.
Flex Duct Repair
Lakeway’s dominant housing stock - large custom and semi-custom homes built from the mid-1990s through the 2010s - relies on long flex-duct runs that sag between joists and trap debris in the low points. On a 4,800 sq ft multi-zone home off Lakeway Drive, our tech found a 1970s-era flex run on the second system that had partially collapsed and was pooling decades of cedar pollen, limestone dust, and debris; camera inspection showed the kink before we even hooked up negative pressure. We repaired the sagging flex, sealed the joints with mastic, and verified airflow at the air handler and registers - the homeowner finally had balanced supply and return ducts after years of guessing. Flex repair in Lakeway typically runs $180-$340 per damaged run, with replacement at $340-$580 for longer spans.
Metal Duct Repair
The original planned-resort core near Lakeway Drive contains homes from the late 1960s and 1970s with galvanized metal ductwork that has rusted at seams or separated at collars after 40-plus years of thermal cycling. We repair separations with drive cleats and seal with mastic, or section-replace corroded plenums with new galvanized or insulated snap-lock duct. Metal work runs higher - $420-$780 per section - because it requires cutting, fitting, and sometimes custom fabrication. We photograph every seam before sealing so you can see the gap that was costing you conditioned air.
Duct Insulation
Unconditioned attic space in Lakeway homes, especially the larger builds with complex rooflines, exposes flex and metal ducts to attic temperatures that routinely exceed 130°F in July and August. We install or replace exterior duct insulation with R-6 or R-8 fiberglass wrap, sealed with vapor-barrier tape, to reduce thermal loss on long runs. Insulation work is typically $4.50-$7.20 per linear foot, and we scope it with a thermal camera so you can see the temperature differential before and after.
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.
BeforeAfterTrusted Brands We Service in Lakeway
Our trucks stock fittings, collars, and sealants compatible with systems using Honeywell zone dampers, Aprilaire media filters, and Nikro negative-pressure extraction equipment. We don’t guess at part compatibility. If your Lakeway home has a multi-zone Honeywell panel or an Aprilaire whole-house dehumidifier tied into the duct system, our technicians have the documentation to seal around those components without disrupting calibration. Parts availability means most Lakeway jobs finish in one visit rather than two.
Common Duct Repair & Sealing Problems We See in Lakeway Homes
- Long flex-duct runs sag between joists, trapping cedar pollen and debris that a filter swap never removes and creating hidden pressure loss across zones. We find these with a borescope camera before quoting any work.
- Multi-zone systems get quoted as one price, so homeowners with three air handlers discover too late that only one zone was actually cleaned or sealed. Our written scope names every system and every duct run - Haven Standard Clause 1.
- In the original Lakeway Drive core, 40-plus-year-old flexible duct has collapsed or kinked, and standard visual filter checks completely miss trapped limestone construction dust and bat or bird debris. Camera inspection reveals what the grille cannot.
- Cedar pollen coats mastic and tape adhesion surfaces, making spring sealing jobs fail if the duct interior wasn’t properly cleaned first. We clean before we seal, and we photograph the clean surface before applying mastic.
Pricing for Duct Repair & Sealing in Lakeway, TX
| Service | Typical Range in Lakeway |
|---|---|
| Single-system duct sealing (joints & plenum) | $280 - $450 |
| Multi-zone sealing (2-3 systems) | $720 - $1,100 |
| Flex duct repair per run | $180 - $340 |
| Flex duct replacement per run | $340 - $580 |
| Metal duct section repair/replace | $420 - $780 |
| Duct insulation (per linear foot) | $4.50 - $7.20 |
These ranges reflect Lakeway’s market - larger homes, longer runs, multi-zone systems - and assume standard attic access. Steep-pitched roofs, limited crawl space, or buried ductwork add labor time and move the quote toward the upper end. We deliver the written price before work starts, every time, with no per-vent add-ons or post-inspection upsells. Bring a competitor’s written estimate and we’ll provide a Free Second Opinion in writing.
We Also Serve Cities Near Lakeway
Our crews regularly work Duct Repair & Sealing in Lakeway and the surrounding communities of Leander, Cedar Park, Brushy Creek, and Jollyville. Scheduling is coordinated from our Austin office with routing optimized for Hill Country traffic patterns.
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 sits inside the densest Ashe juniper belt in the country, the December-February pollen release coats duct interiors with ultra-fine grains that prevent mastic and foil tape from bonding properly to metal surfaces. We schedule sealing March through May so the duct interior can be cleaned of cedar residue first, then sealed while the weather is still mild enough for attic work. Call (737) 252-1285 to book post-cedar-season sealing - estimates are free.
The price is per system, because each air handler, plenum, and duct network is a separate scope of work. A single-system seal in Lakeway runs $280-$450; three systems typically total $720-$1,100 depending on accessibility and run length. Our written quote names every system and every duct run so you know exactly what is included - no surprises when the invoice arrives.
We deliver a Documented Photo Record of every duct run, before and after, as a standard deliverable on every job - not an upgrade, not upon request. You will see the separated joint, the collapsed flex, or the corroded metal before work starts, and the sealed, repaired, or replaced condition after. Haven Standard Clause 2: Documented Evidence.
Yes. The 3,000-5,500 sq ft homes that dominate Lakeway’s stock rely on flex runs of 30 to 50 feet or more, and flex duct sags under its own weight when not properly supported every 4 to 6 feet. The sag creates a low point where debris pools and airflow is restricted. We inspect with a borescope camera and repair or replace sagging runs with proper support straps.
Cedar pollen itself does not corrode metal or degrade flex, but the sheer volume in Lakeway - tens of thousands of grains per cubic meter during peak release - accelerates debris buildup that traps moisture and supports microbial growth on organic dust. That buildup increases static pressure, strains blower motors, and can push conditioned air out through loose joints. Sealing clean ducts prevents the pressure loss; leaving them unsealed wastes energy and wears equipment faster.
Ready to see what’s actually inside your ducts? Call (737) 252-1285 for a free written estimate. We’ll put a price in front of you before any work starts, back it with the 365-Day Done Right Promise, and leave you with a photo record of every run we touched.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Lakeway since 2013.