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 Wells Branch
Most duct repair in Wells Branch runs $280-$680 for a typical single-family home, with full-system flex duct replacement reaching $1,800-$3,400 depending on attic accessibility and the number of runs involved. We dispatch crews to Wells Branch from our Austin office daily, and we know the neighborhood’s duct systems intimately - not from a map, but from twelve years of opening the same builder-era attics between Wells Branch Parkway and Shoreline Drive.
Call (737) 252-1285 for a written estimate before any work starts. Estimates are free, and we bring a camera.
Why CleanRun Air Duct Cleaning Leander Is Wells Branch’s Preferred Duct Repair & Sealing Company
We’ve been in Wells Branch attics since 2013. The neighborhood’s master-planned construction - almost entirely built between 1984 and the mid-1990s - means we’ve seen the same duct failure patterns repeat on the same streets, in the same floor plans, with the same original flex duct runs. That predictability works in our customers’ favor. We know where to look before we pull the attic ladder down.
Our Duct Repair & Sealing team carries a documented photo record on every visit, delivered to the customer as part of the standard job record. The 365-Day Done Right Promise is backed in writing on every job, not just stated in marketing copy. Haven Standard Clause 1 requires a written price before any work starts - no exceptions, no “call for a quote.”
Technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. Tomas Reyes established CleanRun in 2013, and every one of the 52,000+ homes we’ve served received a written price before work started and a documented photo record when the crew left.
We also offer a Free Second Opinion on any written estimate from a competitor. Bring the quote; we put our number next to it in writing.
Our Duct Repair & Sealing Services in Wells Branch

Flex Duct Repair
Wells Branch’s original flex duct runs - installed in a compressed window from 1984 to the mid-1990s - have now endured four decades of central Texas attic heat exceeding 130°F. The insulation degrades, the inner liner collapses, and the joints fail. We replace collapsed runs with new insulated flex duct, re-secure plenum collars with mechanical clamps and mastic sealant, and camera-inspect the trunk line to confirm no upstream separations. On a street off Wells Branch Parkway, our tech opened a late-1980s two-story and found the return-side flex duct above the master bedroom had pulled completely off the plenum collar - a builder-era joint that had been leaking attic air into the supply for years. We re-secured the collar with mastic and a mechanical clamp, replaced the collapsed run with insulated flex, and camera-inspected the trunk to confirm no other separations upstream. The homeowner said the second floor finally stopped running hot in the afternoon.

Mastic Sealant Application
Builder-era duct tape dries and fails in Wells Branch attics. We seal joints, plenum collars, and register boots with mastic sealant - a water-based compound that remains flexible at temperature extremes and carries a 10-year performance expectation in residential applications. Every sealed joint is photographed before and after. The mastic goes on thick enough to cover the joint completely, not just painted across the surface. This matters particularly at the air handler plenum, where vibration from the blower motor works joints loose over decades of operation.

Duct Insulation Replacement
Original R-4 or R-6 flex duct insulation in Wells Branch attics has broken down past the point of salvage in many homes. We remove degraded insulation, replace it with new R-8 insulated flex duct where the run itself is intact, or replace the entire run where the inner liner has collapsed. The photo record shows the condition of the original insulation and the completed repair. Customers receive these images as part of the standard job documentation.

Metal Duct Repair
Some Wells Branch homes - particularly those with later-phase construction near McNeil Road - have galvanized steel trunk lines with flex duct branches. We repair separated trunk seams, replace rusted sections, and seal transitions between metal and flex components. Metal ductwork requires different sealing compounds and mechanical fasteners than flex systems; our crews carry both.

Air Leak Detection and Repair
We pressurize the duct system and use smoke pencils and thermal imaging to locate leaks without tearing out attic insulation. In Wells Branch’s predictable floor plans, we often know the failure point before testing - the sagging flex segment above the master bedroom, the separated collar at the hallway return - but we verify every leak and photograph every repair.

What happens when you call
- 1
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.
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AfterTrusted Brands We Service in Wells Branch
CleanRun crews carry professional-grade equipment from Nikro, Honeywell, and Aprilaire - brands customers can look up independently before agreeing to a price. Our negative-pressure extraction systems and camera inspection tools are manufactured by Nikro and Abatement Technologies. We stock common flex duct diameters, mechanical collars, and mastic compounds locally, so Wells Branch repairs don’t wait on parts orders. Equipment is maintained on a documented schedule under the H.A.V.E.N. Standard; technicians log tool condition before every job.
Common Duct Repair & Sealing Problems We See in Wells Branch Homes

- The master bedroom flex duct pulls off the plenum collar. This is the signature failure in Wells Branch. Because multiple streets share near-identical builder floor plans, technicians find the same sagging, disconnected flex duct segment above the master bedroom or hallway repeated house after house on the same block. The original strap spacing was too wide, and four decades of attic heat degraded the duct tape.
- Original flex duct insulation has collapsed at the air handler. The first three feet of flex duct off the air handler plenum endure the worst temperature cycling. In Wells Branch’s 130°F attics, the R-4 or R-6 insulation breaks down completely, and the inner liner chokes airflow. We replace this section with R-8 insulated flex and a proper support system.
- Drywall dust and construction debris from the 1980s-90s build cycles through the system. The original builders did not source-remove construction debris. Thirty-five years later, Wells Branch homeowners still pull that material through supply and return ducts. We find it packed at elbows and behind registers during camera inspection.
- Cedar pollen loads accelerate duct degradation during heating season. The Austin metro’s mountain cedar (Ashe juniper) pollen season - December through February - is among the most intense in the country. Wells Branch residents running heat during “cedar fever” season pull heavy pollen through aging, leaky flex duct, coating the interior and increasing resistance. Combined with summer attic temperatures that routinely exceed 130°F, the climate creates year-round pressure on duct integrity.
Pricing for Duct Repair & Sealing in Wells Branch, TX
A typical single duct run repair in Wells Branch - re-securing a plenum collar, replacing a collapsed flex segment, sealing with mastic - runs $280-$450. Multiple run repairs on the same visit range $580-$680. Full-system flex duct replacement for a 1,500-2,200 square foot Wells Branch home runs $1,800-$3,400, depending on attic accessibility and the number of supply and return runs.
What moves the price: the number of duct runs, whether the attic has decking or requires balancing on joists, the condition of the original plenum and trunk line, and whether register boots need re-sealing. We deliver a written price before any work starts, every time, under Haven Standard Clause 1. No per-vent pricing. No coupon that balloons once the van is in the driveway.
Call (737) 252-1285 for a written estimate. Estimates are free.
We Also Serve Cities Near Wells Branch

CleanRun crews work across the north Austin metro daily, including Wells Branch, Leander, Cedar Park, Brushy Creek, and Jollyville. Scheduling is coordinated from our Austin office; dispatch routes are built to minimize drive time and keep appointments on time.
Serving Wells Branch, TX - Our Local Coverage Area
We’re based in the Wells Branch 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 Wells Branch

The HVAC running and the duct system delivering conditioned air to the rooms are two different things. In Wells Branch’s builder-era homes, the flex duct above the master bedroom or hallway has often been leaking attic air into the supply for years. The HVAC unit works harder, the rooms stay uncomfortable, and the homeowner pays for cooling that never arrives. We camera-inspect the system and show you the separation before quoting repair. Call (737) 252-1285 for a written estimate - estimates are free.
For Wells Branch’s 1980s-90s construction, “cleaned before move-in” typically meant a shop vacuum at the registers, not source removal of drywall dust and construction debris. The original builders did not perform negative-pressure extraction or camera verification. Thirty-five years later, we still find construction debris packed at elbows and behind registers. A camera inspection reveals what the builder’s cleanup missed. Call (737) 252-1285 to schedule one.
Because your floor plan is shared by half the block. The original strap spacing was too wide for the span, the duct tape has dried and failed after four decades of 130°F attic heat, and the same joint was built the same way on nearly every house on your street. We replace the failed connection with a mechanical clamp and mastic sealant, add proper support straps, and camera-verify the repair. This is the most predictable duct failure pattern in Wells Branch. Call (737) 252-1285 for a written estimate.
Yes, in a specific way. December through February, mountain cedar pollen is among the most intense in the country. If your flex duct has separated at a plenum collar or the insulation has collapsed, you’re pulling unfiltered attic air - and pollen - directly into your supply system. Sealing those leaks before cedar season reduces the load on your indoor air and your HVAC filter. We repair ducts year-round; the timing depends on your comfort and your system’s condition. Call (737) 252-1285 to discuss.
We pressurize the duct system and use smoke pencils and thermal imaging to locate leaks. In Wells Branch’s predictable floor plans, we often know the failure point before testing - the sagging flex segment above the master bedroom, the separated collar at the hallway return - but we verify every leak and photograph every repair. The camera goes into every run before and after. You see what we found, not just what we say we found. Call (737) 252-1285 for a written estimate.
Ready to see what’s actually happening in your ducts? Call (737) 252-1285 for a free written estimate. Every CleanRun job starts with a documented photo record, ends with a documented photo record, and is backed by the 365-Day Done Right Promise in writing. Haven Standard Clause 1: written price before any work starts. No exceptions.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Wells Branch since 2013.




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