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 Live Oak
Duct repair and sealing in Live Oak, TX typically runs $280-$680 for most homes, with full-system sealing on older ranch properties reaching the higher end. We dispatch crews to Live Oak from our San Antonio office, and most repair visits are scheduled within two to three business days. Call (726) 600-7155 for a written estimate before any work starts.
We’ve worked enough homes east of Pat Booker Road to know the pattern: original 1960s sheet-metal trunk lines patched with flex-duct branches that have kinked, sagged, or pulled loose in decades of attic heat. The housing stock here is specific, and the duct problems are too. Our Duct Repair & Sealing team treats every job as a documentation project - written price first, photo record after, no exceptions.
Why CleanRun Air Duct Cleaning San Antonio Is Live Oak’s Preferred Duct Repair & Sealing Company
CleanRun has been independently owned and operated under the Haven Standard since 2013. In that time we’ve documented work in more than 52,000 homes, every one with a written price agreed before the first panel came off and a photo record delivered when the crew left. That practice matters especially in Live Oak, where military PCS turnover means the same 1970s ranch gets re-inspected every few years with none of the history following the house.
Our technicians 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. The equipment we bring includes Rotobrush and Nikro systems, plus Abatement Technologies HEPA filtration rigs that customers can look up independently before agreeing to any price.
The 365-Day Done Right Promise backs every job in writing. If the work is not right, we make it right. Not a policy subject to manager approval. A written guarantee.
We also offer a Free Second Opinion on any written estimate from a competitor. Bring us the quote. We’ll put our number next to it, itemized and in writing, under Haven Standard Clause 1.
Our Duct Repair & Sealing Services in Live Oak
Duct Sealing
Most Live Oak ranch homes were built with sheet-metal trunk lines joined by simple snap-lock seams or tape that has dried to dust by now. Conditioned air leaks into the attic before it ever reaches the registers. We seal metal joints with mastic sealant - a brush-applied, fiber-reinforced compound that remains flexible across temperature swings - and verify with a pressure test after. For the flex-duct retrofits common east of Pat Booker Road, we seal collar connections and repair torn vapor barriers. A typical duct sealing job in Live Oak runs $280-$450 for a single-system home.
Flex Duct Repair
Flex duct installed in Live Oak’s unconditioned attics during the 1990s and 2000s retrofits has often kinked against rafters, collapsed at sag points, or had its insulation jacket tear on attic nails. The camera shows the damage clearly. We re-strap with proper tension, re-route around obstructions, and replace sections where the inner liner is compromised. Flex duct repair in Live Oak typically costs $180-$340 per run, depending on attic accessibility and length.
Metal Duct Repair
Original 1960s and 1970s galvanized steel trunk lines in Live Oak’s slab-on-grade ranches corrode at low points where condensation pools, and separate at seams that were never sealed to modern standards. We cut out damaged sections, fabricate replacement fittings, and seal with mastic. Where rust is extensive enough to compromise structural integrity, we discuss partial replacement with full documentation of what the camera found. Metal duct repair in Live Oak ranges from $220 for spot welding and sealing to $680 for multi-section replacement.
Duct Insulation
Attic ductwork in Live Oak loses efficiency through radiant heat gain six to eight months a year. We install R-6 or R-8 insulation wraps on exposed metal and replace degraded flex-duct jackets. Proper insulation reduces the load on your compressor and keeps supply air closer to design temperature by the time it reaches the register. Duct insulation work in Live Oak runs $320-$580 depending on linear footage and attic configuration.
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 Live Oak
Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation, Nikro negative-pressure extractors for debris removal, and Abatement Technologies HEPA filtration rigs that exhaust filtered air outside the living space. We also install Honeywell and Aprilaire air quality components where duct repairs expose opportunities for upgrade. These are trade-recognized brands, not proprietary systems, so customers in Live Oak can verify specifications independently before we write a price. We stock common flex-duct diameters, mastic compounds, and collar fittings locally, which means most Live Oak repairs don’t wait on parts.
Common Duct Repair & Sealing Problems We See in Live Oak Homes
- Unsealed original metal joints. The sheet-metal trunk lines in Live Oak’s 1960s ranches were assembled with drive cleats and minimal tape. Decades of thermal cycling opened gaps that leak 15-30% of conditioned air into the attic. The camera finds dark debris trails at these joints, proving where air has been escaping for years.
- Kinked flex-duct retrofits. Flex branches added during later HVAC upgrades were often strapped too tight or routed over attic framing. In Live Oak’s extreme attic heat, the material softens and collapses at these stress points. We find bedrooms that never cool properly because the flex has pinched to half its diameter.
- Disconnected runs from occupancy turnover. Military PCS rotations near JBSA-Randolph mean Live Oak rentals change hands frequently. Duct sections get bumped during tenant-installed equipment, filter changes by untrained occupants, or amateur repairs that never get documented. The next owner inherits the problem.
- Cedar pollen loading in winter ducts. Live Oak’s mountain cedar (Ashe juniper) events from December through February drive one of the highest pollen counts in the country. Ducts with even minor leaks pull attic air laden with this allergen, then recirculate it through the house during what residents assume is the off-season for allergies.
Pricing for Duct Repair & Sealing in Live Oak, 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 Live Oak market:
| Service | Typical Range in Live Oak |
|---|---|
| Duct sealing (single system, mastic + pressure test) | $280-$450 |
| Flex duct repair (per run, re-strap/re-route) | $180-$340 |
| Metal duct repair (spot weld + seal) | $220-$420 |
| Metal duct section replacement | $480-$680 |
| Duct insulation (R-6/R-8 wrap) | $320-$580 |
Factors that move a job toward the higher end: multiple attic access points, extensive rust on original metal, or the need to re-route flex around new obstructions. Every estimate is free, itemized, and delivered in writing before we touch a single panel. No per-vent pricing. No coupon bait. One flat price per system, agreed upfront.
Call (726) 600-7155 for your written estimate.
We Also Serve Cities Near Live Oak
Our crews work throughout the San Antonio metro area, including Live Oak, Alamo Heights, Castle Hills, and Terrell Hills. Scheduling and dispatch are coordinated from our San Antonio office, with local routing that keeps Live Oak appointments efficient and predictable.
Serving Live Oak, TX - Our Local Coverage Area
We’re based in the Live Oak 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 Live Oak
These 1960s-1970s ranch homes were built with original sheet-metal trunk lines, then had flex-duct branches retrofitted during later HVAC upgrades without full system replacement. The metal was never sealed to modern standards, and the flex was often strapped poorly in hot attics. Military PCS turnover means each new owner or tenant inherits this mismatch without any documentation of prior work. We see the combination on most calls east of Pat Booker Road. Call (726) 600-7155 for a camera inspection and written estimate.
Sealing works when the metal is structurally sound and the flex branches are intact but poorly connected. We run a camera first. If the inspection shows intact metal with leaking joints and kinked but undamaged flex, sealing and re-strap restores performance at a fraction of replacement cost. If the camera finds rust-through, collapsed liner, or multiple disconnected sections, we document that and quote replacement with full transparency. Most Live Oak homes we see are repairable. Call (726) 600-7155 for the inspection.
Military PCS rotations mean frequent tenant turnover with no continuity of maintenance. Ductwork goes years between professional cleanings across multiple occupancies, and amateur filter changes or tenant-installed equipment often damage runs. The debris load accumulates owner to owner, and disconnected sections are only discovered when a new occupant notices uneven temperatures. We document what we find so the record stays with the property going forward. Call (726) 600-7155 for a move-in or move-out inspection.
Yes. Mountain cedar (Ashe juniper) pollen from December through February is among the most allergenic in North America, and even minor duct leaks pull attic air loaded with this pollen into your supply system. Your HVAC then recirculates it through winter, when most residents keep windows closed and exposure is continuous. Sealing leaks and cleaning accumulated debris reduces this load measurably. Call (726) 600-7155 for a leak inspection before the next pollen event.
We arrive at the scheduled time, identify the technician by name, and begin with a camera inspection of every accessible duct run. You see what the camera sees. We then deliver a written, itemized price under Haven Standard Clause 1. Once approved, we perform source removal under negative pressure with HEPA filtration, seal metal joints with mastic sealant, repair or re-strap flex branches, and pressure-test the system. You receive a Documented Photo Record of every run, before and after, as a standard deliverable. The 365-Day Done Right Promise applies in writing. Call (726) 600-7155 to schedule.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Live Oak since 2013.