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 typically runs $280-$650 for most single-family homes, with flex duct replacement and full trunk re-sealing at the higher end. We’re usually on site within 24-48 hours of your call, and every job starts with a written price before a single panel comes off. Call (830) 549-6847 and a live person will pick up, 24/7.
Our crews know Live Oak’s streets well. Dispatch and scheduling run from our San Antonio office, but the technicians serving you are the same crews who’ve worked the 1960s-1980s brick tracts along Pat Booker Road, the rental pockets near JBSA-Randolph, and the original Live Oak Village subdivisions. That matters because the ductwork in these homes fails in predictable ways, and predicting it correctly saves you both time and money.
Why CleanRun Air Duct Cleaning New Braunfels Is Live Oak’s Preferred Duct Repair & Sealing Company
We’ve served the Live Oak market since 2013, and our reputation here is built on one thing: documentation. Every customer receives a written price before work starts, a photo record of every duct run before and after, and the 365-Day Done Right Promise backed in writing on every invoice. That’s Haven Standard Clause 1, and it’s non-negotiable.
Live Oak homeowners specifically mention our photo records in reviews. They like being shown the 3-inch debris buildup at the first elbow, the separated trunk collar behind the air handler, the torn flex insulation that’s been trapping Mountain Cedar pollen since last January. They don’t have to take our word for anything.
Response time to Live Oak averages next-day scheduling, sometimes same-day depending on route density. We’re not going to promise “emergency dispatch” because duct repair isn’t an emergency service, it’s a scheduled job that deserves a scheduled arrival time we actually keep.
Our local knowledge runs deep. We know which Live Oak neighborhoods have original sheet-metal trunks versus first-generation flex duct, which streets have the tight parking that complicates equipment access, and which rental properties near the base see tenants rotate every 18 months with zero maintenance in between. That context changes what we bring to the job and what we expect to find.
Our Duct Repair & Sealing Services in Live Oak
Duct Sealing
Live Oak’s original 1960s-1980s tract homes were built with mastic-sealed sheet-metal supply trunks that have now aged 40-60 years. The mastic dries, cracks, and fails, especially in attics that hit 140°F through summer. We remove the degraded material, clean the joint surfaces, and reseal with fresh mastic and foil-backed tape rated for duct applications. A typical duct sealing job in Live Oak runs $280-$450 for a single-story home with accessible attic space. Every joint we touch is photographed before and after, and the photo record is delivered with your invoice.
Flex Duct Repair
First-generation flex duct in Live Oak homes tears at sharp turns, crushes where it was poorly supported, and degrades at animal entry points. The compromised insulation then traps debris and moisture, which is especially problematic given Live Oak’s position in the Mountain Cedar pollen corridor. We cut out damaged sections, install new flex with proper support spacing, and terminate with mechanical couplings sealed under the H.A.V.E.N. Standard. Flex duct repair in Live Oak typically costs $180-$340 per run, depending on length and attic accessibility.
Metal Duct Repair
Original sheet-metal trunks in Live Oak’s older brick homes separate at collars, rust through at low points where condensation pools, and crack at stress points near the air handler. We repair with metal patches, riveted collars, and fresh mastic sealant, then pressure-test the repair to confirm integrity. Metal duct repair runs $320-$580 in this market, with full trunk replacement at the higher end when the original galvanized steel has thinned beyond patching.
Duct Insulation
Degraded duct insulation in Live Oak attics costs you money every summer when 55°F supply air warms to 70°F before it reaches your register. We install new foil-faced fiberglass insulation with proper vapor barriers, sealed at all seams. Insulation replacement runs $450-$850 for a full system, and we photograph every section to document R-value and installation quality.
Mastic Sealant Application
Mastic is the workhorse of duct sealing, and its application is a skill, not a product purchase. We brush-apply water-based mastic at proper thickness, allow full cure time, and verify with visual inspection and pressure testing. In Live Oak’s climate, mastic selection matters: we use products rated for the temperature swings these attics see. This is standard on every sealing job we perform, not an upsell.
Air Leak Repair
Return air leaks in Live Oak’s older homes pull attic air directly into your system, pressurizing your living space with everything the attic contains: fiberglass particles, rodent debris, and during Mountain Cedar season, concentrated pollen loads. We locate leaks with smoke testing and camera inspection, then repair with mechanical methods and sealant. The result is measured: we target less than 10% leakage on return systems, verified with a manometer.
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 agitation systems, Nikro negative-pressure extractors, and Honeywell and Aprilaire air quality components. We stock common repair couplings, flex duct diameters, and mastic products for Live Oak jobs, which means most repairs don’t wait on parts orders. When we do need to source specialty items, our San Antonio office maintains next-day relationships with regional distributors. You can verify any of these brands independently, and we encourage it.
Common Duct Repair & Sealing Problems We See in Live Oak Homes
- Separated trunk collars behind the air handler. Original 1970s sheet-metal supply trunks in Live Oak’s brick tracts lose mastic and separate at the air handler collar, dumping conditioned air directly into the attic. We find this in roughly half the homes we inspect over 40 years old, and it’s invisible from the living space until your electric bill spikes.
- Torn flex duct at sharp turns and animal entry points. First-generation flex duct in these homes tears where it bends around framing or where rodents have accessed the attic. The tear pulls unfiltered attic air into the system, and in Live Oak, that air carries a heavy Mountain Cedar pollen load through winter.
- Disconnected returns in rental properties near JBSA-Randolph. Military PCS turnover every 1-3 years means property managers almost never schedule duct maintenance. We regularly find flex returns that have separated at the plenum for 5-10 years, with tenants simply adjusting the thermostat to compensate.
- Crushed flex insulation from improper original installation. Early flex duct in Live Oak homes was often laid directly on attic insulation without proper support, causing the inner liner to sag and the insulation to compress. The result is reduced airflow, thermal loss, and debris accumulation in the low points.
Pricing for Duct Repair & Sealing in Live Oak, TX
Here’s what duct repair and sealing actually costs in the Live Oak market, based on jobs we’ve completed in 2024-2025:
| Service | Typical Range in Live Oak |
|---|---|
| Duct sealing (single-story, accessible attic) | $280-$450 |
| Flex duct repair/replacement (per run) | $180-$340 |
| Metal duct repair (patch and reseal) | $320-$580 |
| Full trunk replacement (sheet metal) | $650-$1,200 |
| Duct insulation replacement (full system) | $450-$850 |
| Air leak detection and repair | $220-$420 |
What moves you within these ranges: attic accessibility (tight truss spacing adds labor), number of damaged runs, and whether we need to coordinate with your HVAC contractor for air handler access. One thing that never changes: the written price you receive before work starts is the price on the final invoice. Haven Standard Clause 1. No per-vent pricing, no “while we’re here” additions, no coupon bait-and-switch. Call (830) 549-6847 for a free estimate, and we’ll put our number next to any competitor’s written quote with our Free Second Opinion.
We Also Serve Cities Near Live Oak
Our crews work daily in Live Oak and the surrounding communities: New Braunfels, Cibolo, Seguin, and Schertz. If you’re searching for Duct Repair & Sealing service in any of these areas, the same crews, equipment, and pricing structure apply.
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
Live Oak’s housing stock is overwhelmingly 1960s-1980s construction originally built for Randolph AFB families, with ductwork now 40-60 years old. The original sheet-metal trunks and first-generation flex duct have exceeded their design lifespan, while newer suburbs like Cibolo and Schertz have systems half that age with modern materials. If your Live Oak home has never had ductwork replaced, repair and re-sealing is almost certainly needed. Call (830) 549-6847 for an inspection and written estimate.
Live Oak sits in the epicenter of San Antonio’s Mountain Cedar pollen corridor, where December-February Ashe juniper pollen counts rank among the highest in the United States. Every leak, tear, or separated joint in your duct system pulls this concentrated pollen load into your living space when the system runs in recirculation mode. Proper sealing before cedar season starts in December reduces indoor pollen exposure measurably. We recommend inspection in October-November for homes with known duct issues.
Yes, with coordination. Live Oak has several multi-family developments with shared HVAC infrastructure, and we’ve worked with property management companies to access common mechanical rooms and coordinate shutdown windows. The key constraint is scheduling around other units, not the repair itself. We document all work with photos and provide written scope for property manager records. Call (830) 549-6847 to discuss access protocols for your specific building.
Most rental properties near the base haven’t had duct maintenance between tenants, so we typically find accumulated debris, disconnected returns, and failed flex runs that have gone unreported. Our process: camera inspection of every run, source removal under negative pressure with HEPA filtration, repair or replacement of damaged components, and full sealing with mastic. The photo record goes to both tenant and property manager. Pricing follows the same ranges as owner-occupied homes, with written scope provided to both parties.
Many Live Oak neighborhoods have narrow streets and limited driveway access originally designed for 1960s vehicle widths. Our crews use compact Nikro extractors and Rotobrush systems that fit standard pickup beds, and we coordinate arrival times to avoid blocking through traffic on streets like Pat Booker Road. If your home has specific access constraints, mention them when you call and we’ll plan equipment accordingly. Call (830) 549-6847 to schedule.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Live Oak and the greater San Antonio area since 2013.