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 flex duct replacement reaching $850-$1,400 when original 1970s runs have collapsed or separated. We’re usually on-site in Live Oak within 24-48 hours of your call, scheduling coordinated from our San Antonio office with crews who know the specific attic layouts and duct configurations common to this city’s Randolph AFB-era housing stock. Call (830) 402-5110 and we’ll put a written price in your hand before any panel comes off.
Our Duct Repair & Sealing team has worked the attic spaces of Live Oak’s slab-on-grade ranch homes since 2013. We know the low-pitch rooflines, the tight joist bays, and the original fiberglass flex duct that builders installed between 1960 and 1985. That familiarity matters. A technician who expects modern ductwork wastes your time guessing. Ours arrive prepared for what Live Oak actually contains.
Why CleanRun Air Duct Cleaning Schertz Is Live Oak’s Preferred Duct Repair & Sealing Company
We’ve served Live Oak homeowners since our first year in business, and the pattern is consistent: this city’s housing stock rewards preparation and punishes assumptions. Our crews don’t guess at duct conditions. They test them.
Live Oak customers rate us highly for documented results they can verify themselves. Every job concludes with a photo record of every duct run, delivered as a standard deliverable, not an upsell. The 365-Day Done Right Promise applies in writing on every Live Oak job, backed by Haven Standard Clause 1: written price before work starts, every time, no exceptions.
Dispatch and scheduling run from our San Antonio office, but the crews serving Live Oak are the same technicians who’ve worked Bexar County’s northeastern suburbs for years. They know the difference between a 1972 ranch off Pat Booker Road and a 1984 build near the Universal City line, and they pack accordingly. Background-checked, uniformed, identified by name before arrival, Haven Standard Clause 3: Verified Crews.
Our Free Second Opinion applies to any written estimate a Live Oak homeowner brings us. We put our number next to it, in writing, so you can compare documented scope against documented scope.
Our Duct Repair & Sealing Services in Live Oak
Duct Sealing
Live Oak’s original 1970s cloth-backed duct tape has failed in attic after attic. It looks intact from the access panel. It isn’t. We run a duct integrity test as standard practice here, pressurizing the system to locate leaks the eye can’t see. Then we seal with mastic compound, not tape, at every joint and connection. Mastic remains flexible, withstands temperature cycling, and carries a 20-year performance expectation. For Live Oak homes running AC from April through October, that durability matters.
Flex Duct Repair
The fiberglass flex duct in Live Oak’s older ranches sags between joists, kinks at bends, and crushes where decades of attic traffic have compressed it. Our Rotobrush equipment can be configured for tight, low-clearance runs, but sometimes the duct itself is the problem. We repair severed or crushed sections with proper support strapping, re-insulate with R-6 or R-8 wrap where original insulation has degraded, and verify airflow at each register before closing the access panel. In homes near the Randolph AFB corridor, we’ve replaced entire runs that had never been touched since original construction.
Metal Duct Repair
Some Live Oak homes, particularly earlier 1960s builds, used galvanized sheet metal trunk lines with flex duct branches. The metal itself lasts, but the seams and takeoff connections corrode or separate. We re-seal metal trunks with mastic and fiberglass mesh, repair or replace damaged takeoffs, and insulate where condensation has rusted through. Metal work costs more than flex repair but typically outlasts it by decades.
Duct Insulation
Live Oak sits in the San Antonio metro’s heat corridor. Attic temperatures exceed 140°F in July and August. Uninsulated or degraded ductwork loses 20-30% of conditioned air before it reaches your living room. We re-insulate with professional-grade materials, sealing the thermal envelope so your HVAC doesn’t work overtime. The equipment we use includes Guardsman and Honeywell components where specifications call for them.
Mastic Sealant Application
Mastic is the standard we apply on every Live Oak sealing job. Brush-applied, it flows into gaps that tape can’t reach, cures to a flexible seal, and carries no adhesive failure mode. For homes with active cedar pollen infiltration through failed joints, mastic is the difference between filtering your air and distributing allergens.
Air Leak Repair
Disconnected runs, split plenum seams, and corroded collar connections: we find them with smoke pencils and pressure testing, then repair with documented before-and-after photography. No guesswork. No “trust us, it’s better now.” The photo record shows you exactly what failed and exactly what was done.
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 air quality components. We don’t buy tools you can’t look up. Every brand we name is documented on manufacturer websites with specifications you can verify independently. For Live Oak’s older ductwork, we stock common flex duct diameters, mastic compounds, and insulation wraps to avoid supply delays that stretch a one-day job into two. Parts availability matters when you’re working in attics that hit 120°F by 10 a.m.
Common Duct Repair & Sealing Problems We See in Live Oak Homes
- Original cloth-backed duct tape has failed completely. Installed in the 1970s and 1980s, this tape dries out, loses adhesion, and drops away from joints. From the access panel, the duct looks fine. Pressure testing reveals 15-30% air loss straight into the attic. We find this in Live Oak homes several times per week.
- Flex duct sags and kinks in low-clearance joist bays. Slab-on-grade construction leaves little room between ceiling drywall and roof deck. Decades of gravity and attic heat compress the duct into tight angles that trap debris and restrict airflow. Standard brushing equipment won’t reach these spots without specific configuration.
- No documented service history across multiple owners. Live Oak’s high military-family turnover means systems pass through three, four, five owners with no record of prior cleaning or repair. Crushed runs, disconnected branches, and rodent damage go unnoticed until a first professional inspection reveals them.
- Cedar and Ashe juniper pollen loads accelerate contamination at failed joints. Live Oak’s winter pollen season, peaking December through February, pushes biological material into ductwork exactly when heating systems kick on. Failing tape joints become entry points, not just exit points. The contamination cycle repeats annually until sealing is addressed.
Pricing for Duct Repair & Sealing in Live Oak, TX
Here is what duct repair and sealing costs in Live Oak’s market:
| Service | Typical Range |
|---|---|
| Duct integrity test with written report | $85-$125 |
| Mastic sealing of accessible joints (per system) | $280-$450 |
| Flex duct repair (per run, including support and insulation) | $180-$340 |
| Flex duct replacement (per run) | $320-$580 |
| Metal trunk repair/re-seaming | $450-$680 |
| Duct insulation replacement (per system) | $680-$1,100 |
| Full system evaluation with photo documentation | Included on every job |
What moves you within these ranges: accessibility of the attic space, extent of original material failure, and whether we’re repairing three joints or fifteen. We deliver one flat price per system, agreed in writing before work starts, under Haven Standard Clause 1. No per-vent pricing. No add-ons after the truck arrives. Call (830) 402-5110 for a written estimate at no charge.
We Also Serve Cities Near Live Oak
Our crews work Live Oak regularly and also serve Schertz, Cibolo, Universal City, and Selma from the same dispatch base. The same written pricing, same documented photo record, same 365-Day Done Right Promise applies in every zip code we cover.
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
Because the original flex duct and tape in Live Oak’s 1960s-1980s ranch homes has reached end of functional life. Our technicians open access panels expecting to clean and instead find disconnected runs, failed tape, or collapsed sections that make cleaning pointless until repair is done. We photograph what we find, explain the condition in plain language, and provide a written repair price before proceeding. Call (830) 402-5110 and we’ll assess your system with no obligation.
We pressurize the duct system and measure pressure loss at the air handler, then use smoke pencils to locate exact leak points. The test quantifies how much conditioned air is escaping into the attic versus reaching your rooms. In Live Oak, we typically find 20-35% leakage in homes with original tape, sometimes higher. The result is a written number, not a guess, and it determines whether sealing alone will suffice or if section replacement is needed.
Partial repair is often possible. If the duct material itself is intact but sagged, crushed, or disconnected, we can re-support, reconnect, and re-insulate. Replacement becomes necessary when the fiberglass core has degraded, when rodent damage is extensive, or when repeated crushing has destroyed the wire helix structure. We make this determination with camera inspection, not assumption, and we show you the footage before quoting either approach.
It makes a bad situation worse. December through February, Ashe juniper releases pollen that your heating system draws in through return air pathways. Failed tape joints at the plenum or trunk connections become intake points for attic air loaded with pollen and dust. The system distributes it through every register. Sealing with mastic closes these entry points and is the only way to break the annual cycle. We schedule this work heavily in October and November, before peak season hits.
Yes. Negative-pressure extraction, which pulls debris downstream toward a contained collection point rather than blowing it into your home, is standard on every job. HEPA filtration captures particles down to 0.3 microns. This matters especially in Live Oak, where decades of accumulated debris in kinked low-spots would otherwise release into living spaces during agitation. The equipment includes Nikro negative-pressure systems with verified HEPA certification. We document filter condition in your photo record.
What to Expect When You Call
A live person answers. We don’t do phone trees. You’ll speak with someone who can schedule a technician, explain our pricing structure, and email you a confirmation with the technician’s name and photo. Haven Standard Clause 3: Verified Crews.
The technician arrives on time, in uniform, with a printed scope and price for your approval. No work begins until you sign. The photo record is delivered electronically within 24 hours of job completion. The 365-Day Done Right Promise is in writing, not spoken and forgotten.
We’ve held this standard since 2013, across 52,000 homes, every one with a written price before work started and a documented photo record when we left. Live Oak’s older housing stock demands this level of rigor. We deliver it.
Call (830) 402-5110 for a free written estimate on duct repair and sealing in Live Oak. We’ll put a number in your hand you can compare against any competitor’s quote, and our Free Second Opinion applies if you already have one.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Live Oak and the San Antonio metro since 2013.
Duct Repair & Sealing in Nearby Areas
