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 Pflugerville
Duct repair and sealing in Pflugerville typically runs $280-$680 for most homes, with flex duct replacement and full-system mastic sealing landing toward the higher end. We’re out in Pflugerville regularly - crews dispatch from our Austin office and work the full corridor from Settlers Ridge up through Avalon and Bohls Place - and most repair calls here are scheduled within 48 hours. Call (737) 243-9544 for a written estimate before any work starts.
Our Duct Repair & Sealing team knows Pflugerville’s housing stock. The city built fast between 2000 and 2015, and that wave of volume-builder tract homes is now hitting the exact age where flex duct fails. We see it weekly.
Why CleanRun Air Duct Cleaning Austin Is Pflugerville’s Preferred Duct Repair & Sealing Company
We’ve been serving the Pflugerville area since 2013. In that time we’ve documented the inside of over 52,000 homes, and a growing share of those are right here in Pflugerville neighborhoods where original flex duct is finally giving out.
Our technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. Every job starts with a written price and ends with a Documented Photo Record of every duct run, before and after. The 365-Day Done Right Promise applies in Pflugerville exactly as it does everywhere else: if the work isn’t right, we make it right, in writing.
Scheduling is coordinated from our Austin office, and crews carry Pflugerville-specific parts inventory including flex duct, collars, and mastic sealant so most repairs finish in a single visit.
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 in writing.
Our Duct Repair & Sealing Services in Pflugerville

Flex Duct Repair
Pflugerville’s 2000-2015 volume-builder homes - Avalon, Settlers Ridge, Bohls Place - were ducted almost entirely in flex, and flex run through a superheated unconditioned attic sags, disconnects at the joints, and packs with debris right around the 10-20 year mark those homes are hitting now. Most “cleaning” calls here turn into repair-and-seal calls once we run the camera. Homes backing the undeveloped SH 130/SH 45 expansion zone carry even heavier caliche and drywall dust loads, because active construction keeps feeding the same leaky runs. We replace crushed or torn flex, re-strap sagging runs, and reattach collars that have pulled free.

Duct Sealing
Builder-grade tape dries out in Pflugerville attic heat. We remove failed tape and seal joints with mastic - a thick, permanent compound that remains flexible at temperature extremes. Proper sealing stops conditioned air from escaping into the attic and prevents the return side from drawing in construction dust, pollen, and attic insulation. In Pflugerville’s climate, this matters more than in milder regions because AC systems run eight months straight and every leak costs money the entire season.

Metal Duct Repair
Some Pflugerville homes, particularly earlier builds and custom construction, use galvanized steel ductwork. We repair separated seams, replace rusted sections, and seal with mastic or specialized metal duct sealant. Metal duct in Pflugerville attics expands and contracts dramatically through our temperature swings; seam failure is common after 15+ years.

Duct Insulation
When flex duct insulation degrades in a Pflugerville attic - vapor barrier torn, fiberglass compressed - the duct loses thermal efficiency and condensation forms on the exterior. We replace damaged insulation wraps or install new insulated flex where the original is beyond recovery. This is particularly relevant for homes near SH 130 where dust infiltration has accelerated insulation breakdown.

Mastic Sealant Application
Mastic is the standard we apply on every sealing job in Pflugerville. Unlike tape, it doesn’t dry and peel. We brush or trowel it onto every joint, collar, and penetration, then photograph the sealed connections for the job record. The material we use is rated for the temperature range found in central Texas attics.

Air Leak Repair
Leak detection in Pflugerville homes often reveals the same pattern: supply runs leaking into the attic, return leaks pulling in unfiltered air from construction zones or attic spaces. We pressure-test, locate, and repair. The fix is usually a combination of reattachment, mastic sealing, and strap replacement.

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.
Before
AfterTrusted Brands We Service in Pflugerville
Our equipment roster includes Nikro, Abatement Technologies, and Honeywell - professional-grade tools customers can look up independently. We stock repair parts specifically for the systems common in Pflugerville’s housing stock, including flex duct collars, mastic, and strapping hardware, so most jobs don’t wait on ordered materials. For air quality components tied to sealed duct systems, we also work with Aprilaire filtration and ventilation products.
Common Duct Repair & Sealing Problems We See in Pflugerville Homes

- Flex duct sags and disconnects in superheated attics. Pflugerville’s unconditioned attics reach 140°F regularly. Flex duct installed with inadequate strapping sags between supports, creates debris traps, and pulls free at collar connections. The back bedrooms in Avalon and Settlers Ridge homes are where we find this most often.
- Builder-grade tape fails at joints. Tape dries and separates in attic heat, leaving open leaks that draw in caliche dust from nearby SH 130 construction and Ashe juniper pollen during cedar season. Mastic is the permanent fix.
- Returns choked with biological debris. The December-February mountain cedar season blankets Pflugerville with some of the highest pollen counts in North America. Combined with eight months of continuous AC operation, return ducts accumulate restriction faster than in milder climates.
- Construction dust infiltration near active build zones. Technicians working the Avalon and Bohls Place subdivisions consistently find that homes backing up to undeveloped lots along the SH 130 expansion zone have notably heavier drywall dust and caliche particulate in their ducts - a direct result of Pflugerville’s still-ongoing buildout creating a constant, neighborhood-level dust source that older, established suburbs simply don’t have.
Pricing for Duct Repair & Sealing in Pflugerville, TX
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts. Here is what duct repair and sealing costs in the Pflugerville market:
| Service | Typical Range in Pflugerville |
|---|---|
| Single flex duct run repair/replacement | $180-$340 |
| Mastic sealing of accessible joints (whole system) | $280-$480 |
| Full system flex duct repair + sealing | $480-$680 |
| Duct insulation replacement (per run) | $140-$260 |
| Metal duct seam repair and sealing | $220-$420 |
What moves a job toward the higher end: multiple disconnected runs, collapsed flex requiring full replacement, or restricted access in tight attic spaces. What keeps it lower: localized sealing of accessible joints with intact ductwork. Every estimate is free, written, and delivered before any work begins. Call (737) 243-9544 to schedule.
We Also Serve Cities Near Pflugerville

Our crews work Pflugerville regularly and also handle duct repair and sealing calls in Round Rock, Hutto, Manor, and Austin. Scheduling is coordinated from our Austin office, and we carry inventory appropriate to the housing stock across this entire corridor.
Serving Pflugerville, TX - Our Local Coverage Area
We’re based in the Pflugerville 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 Pflugerville

The supply run to that bedroom has likely slipped off its collar or sagged to the point of kinking. In Avalon and Settlers Ridge, we find this exact failure constantly: flex duct strapped too loosely in 2006, now sagging in a 140-degree attic, with the joint behind the register boot separated and dumping cold air into the attic instead of the room. A camera inspection confirms it in about ten minutes. Call (737) 243-9544 for a free estimate.
Yes, often. Homes backing undeveloped lots along SH 130 and SH 45 show significantly heavier caliche and drywall dust loads, and that dust enters through leaks in the return side. Cleaning alone doesn’t stop recontamination. We typically recommend sealing the return leaks with mastic at the same time, or the same dust load returns within a season. Call (737) 243-9544 and we’ll inspect for leak points.
Ashe juniper pollen from December through February is ultra-fine and enters through any gap in the return ductwork. Restricted returns force the blower motor to work harder, raise energy bills, and distribute pollen throughout the house. Sealing the return plenum and junctions with mastic is the effective fix - filters alone can’t compensate for a leaky return pulling unfiltered attic air. Call (737) 243-9544 to assess your return side integrity.
Most sealing is done from the attic side through the access hatch, with no drywall disturbance. We use extendable applicators for mastic in tight spaces. The only time drywall access is needed is for a register boot repair in a finished ceiling with no attic clearance - rare in Pflugerville’s slab-on-grade tract homes, which typically have full attic access. We’ll tell you before quoting if your layout requires anything beyond standard access. Call (737) 243-9544 for specifics on your home.
Repair and sealing is usually the right economic choice for a 10-20 year home. The HVAC unit itself often has remaining life, and the ductwork failure is localized - disconnected collars, sagging runs, failed tape - not systemic material degradation. We document what we find with photos, quote the repair in writing, and let you compare against replacement cost. If the ductwork is truly end-of-life, we’ll say so. Call (737) 243-9544 for an honest assessment with documentation.
In Avalon, a homeowner called us about a back bedroom that never cooled; our tech ran a camera inspection and found a supply run in the attic had slipped off its collar behind the register boot, dumping cold air straight into 140-degree attic space. We reattached and mastic-sealed the joint, re-strapped two sagging flex runs, and rebalanced the supply and return ducts - the room recovered its airflow the same afternoon.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Pflugerville since 2013.




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