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 Converse
Duct repair and sealing in Converse typically runs $340-$780 for a whole-home system, with most jobs completed in a single scheduled visit. Our crews dispatch from the San Antonio office and serve Converse neighborhoods directly, including the subdivisions off FM 78, Toepperwein Road, and Woodlake Parkway. We’ve worked enough Converse attics to know what the 140°F summer heat does to flex-duct liners installed during the 2002-2010 build-out. Call (830) 549-6847 and we’ll put a written price in front of you before any panel comes off.
Converse homeowners and the out-of-town landlords who own much of this city’s rental stock face a specific problem: flex-duct systems that have spent 15-20 years in brutal attic conditions without a single documented cleaning. That neglect shows up as collapsed liners, separated collars, and conditioned air dumping straight into the attic instead of the bedrooms below. Our Duct Repair & Sealing team documents every finding with before-and-after photos of the actual duct runs inside your home, not stock images from a brochure.
Why CleanRun Air Duct Cleaning New Braunfels Is Converse’s Preferred Duct Repair & Sealing Company
We’ve served the northeast San Antonio metro since 2013, and Converse represents a significant share of our duct repair volume. The reason is straightforward: this city’s housing stock and occupancy patterns create predictable failure modes we know how to fix, document, and guarantee.
Our reputation in Converse is built on what we can show, not what we claim. Every job delivers a written price before work starts (Haven Standard Clause 1), a Documented Photo Record of every duct run, and the 365-Day Done Right Promise backed in writing. Customers in Converse can verify our license number on the page, review our equipment roster (Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, Guardsman), and check that every technician is background-checked and uniformed under Haven Standard Clause 3: Verified Crews.
Scheduling is coordinated from our San Antonio office, with crews running dedicated routes through Converse, Universal City, and Schertz. We’re familiar with the specific tract-home layouts common here: slab-on-grade construction, 1,400-2,200 sq ft, flex ductwork routed through unconditioned attics with single central returns. That familiarity means faster diagnosis and no exploratory billing.
We also offer a Free Second Opinion on any written estimate from a competitor. Bring us another company’s quote and we’ll put our number next to it, line-itemed and in writing, at no cost.
Our Duct Repair & Sealing Services in Converse
Flex Duct Repair
Flex ductwork is the standard in Converse’s 2002-2010 tract homes, and it’s failing predictably. The inner liner degrades in attics that regularly exceed 140°F, the insulation compresses where runs sag over time, and collars separate at the plenum or register boot. In a 2006-built rental off Toepperwein Road, our crew camera-inspected a flex run and found the inner liner collapsed and separated at the collar behind a bedroom register, feeding conditioned air straight into the 145°F attic. We re-secured the run, mastic-sealed the collar and plenum joints, and confirmed airflow at the registers matched the return side after the repair. A typical flex duct repair in Converse runs $280-$520 depending on how many runs need re-securing or replacement.
Mastic Sealant Application
Foil tape fails. In Converse’s heat, it fails fast. We apply water-based mastic sealant (a thick, fiber-reinforced paste) to all plenum joints, collar connections, and register boots. It remains flexible through thousands of thermal cycles and is the only sealant method recognized by ACCA Manual D for permanent duct sealing. Mastic sealing as a standalone service in Converse typically costs $340-$580 for a whole-home system. We photograph every sealed joint before the mastic cures so you can verify coverage.
Air Leak Repair
Leaky ducts pull unconditioned attic air into the system and dump conditioned air where it does no good. In Converse, that means the blower motor works harder during the six-month cooling season, pulling fine particulate from the Blackland Prairie through every gap. We pressure-test the system, locate leaks with smoke pencils and thermal imaging, then repair with mechanical fastening plus mastic. Air leak repair in Converse runs $320-$640 depending on system size and leak severity.
Metal Duct Repair
Some older Converse homes and custom builds use galvanized steel ductwork. We repair separated seams, replace rusted sections, and seal with mastic or specialized metal duct sealant. Metal duct repair typically costs $380-$720 in this market.
Duct Insulation
Where flex duct insulation has compressed or degraded in Converse attics, we replace or supplement with formaldehyde-free fiberglass wrap or pre-insulated flex replacement. Proper insulation keeps delivered air closer to setpoint temperature and reduces condensation that can breed microbial growth. Duct insulation work in Converse runs $420-$780.
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 Converse
Our equipment roster includes Nikro negative-pressure extraction systems, Honeywell media air cleaners, and Aprilaire whole-home dehumidifiers. We stock common flex-duct diameters, collar sizes, and mastic compounds for Converse jobs so we’re not ordering parts while your attic stays open. For repairs requiring specialized components, our San Antonio office maintains same-day or next-day supply relationships with regional HVAC distributors. You can verify every brand we name independently; we don’t use equipment we can’t document.
Common Duct Repair & Sealing Problems We See in Converse Homes
- Flex duct runs disconnected or sagging at the collar in 140°F+ attics. Conditioned air dumps into the attic instead of reaching the register, and the liner degrades faster than in milder climates. We find this in virtually every Converse rental built between 2004 and 2008 that hasn’t had prior service.
- Decades of construction debris still sitting in supply and return ducts. Drywall dust, joint compound, fiberglass strands - left from original construction because no tenant in multiple PCS cycles ever scheduled a cleaning. Blackland Prairie clay particulate binds this debris to the liner, accelerating deterioration.
- Cheap foil-tape patches over old tears that fail within a cooling season. The blower motor pulls 140°F attic air through every leak instead of through the return, spiking energy use and pulling particulate into living spaces. We remove failed tape and apply mastic for permanent sealing.
- Original construction debris in homes framed in 2004 or 2006. Technicians working Converse rental subdivisions near JBSA-Randolph frequently pull out sawdust, joint-compound dust, and fiberglass strands that have sat undisturbed since the home was built, because no tenant in three ownership cycles ever scheduled a cleaning.
Pricing for Duct Repair & Sealing in Converse, TX
We quote one flat price per system, agreed in writing before work starts. No per-vent pricing. No add-ons once the van is on your driveway.
| Service | Typical Range in Converse |
|---|---|
| Flex duct repair (1-2 runs) | $280-$520 |
| Mastic sealant (whole system) | $340-$580 |
| Air leak repair and pressure testing | $320-$640 |
| Metal duct repair | $380-$720 |
| Duct insulation replacement | $420-$780 |
| Combined repair + sealing package | $580-$1,100 |
What moves the price: how many duct runs need attention, whether we can access the attic via standard hatch or need to pull decking, and whether the air handler itself needs re-sealing at the plenum. We photograph everything we find, explain it, and give you the written price before any repair begins. Estimates are free. Call (830) 549-6847.
We Also Serve Cities Near Converse
Our crews run regular routes through Converse, Universal City, Schertz, Cibolo, and northeast San Antonio. The same written-price guarantee, Documented Photo Record, and 365-Day Done Right Promise apply in every city we serve.
Serving Converse, TX - Our Local Coverage Area
We’re based in the Converse 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 Converse
Most Converse homes built during the 2002-2010 boom need duct inspection every 10-15 years, with repair or sealing typically required once in that cycle. The combination of 140°F+ attic heat, continuous cooling-season runtime, and neglected maintenance in rental properties means flex-duct systems here age faster than national averages. If your home has never had duct service and you’re experiencing uneven cooling, high summer bills, or visible dust at registers, it’s worth scheduling a camera inspection. Call (830) 549-6847 for a free estimate.
We charge one flat price per system, not per vent. Haven Standard Clause 1 requires a written, line-itemed price before any work starts, and that price covers the entire duct network served by your air handler. Per-vent pricing is a common bait-and-switch tactic in this market; we don’t use it. You’ll know the full cost before we remove the first attic panel.
Converse’s 2002-2010 tract homes were built with entry-level flex ductwork routed through unconditioned attics that regularly exceed 140°F. That heat degrades the inner liner, compresses insulation, and weakens collar adhesives. Meanwhile, most of these homes are investor-owned rentals serving JBSA-Randolph military families on 2-3-year PCS cycles, so the duct systems have cycled through multiple tenants with virtually no maintenance. Neglect is the baseline here, not the exception. Call (830) 549-6847 and we’ll show you exactly what your attic contains.
We start with a camera inspection of every accessible duct run, photographing the interior condition. We then present a written scope and flat price. Once approved, we repair or replace damaged flex runs, mechanically secure all collars, apply mastic sealant to every joint, pressure-test the system, and photograph the completed work. You receive the full photo record as a standard deliverable. No work begins without your written approval of the price.
Duct sealing can reduce cooling costs in Converse, but the honest range is 10-20% for homes with significant leakage, not the 30% figures some competitors advertise. The bigger benefit here is comfort: sealed ducts deliver consistent airflow to every room instead of dumping conditioned air into a 145°F attic. We measure actual leakage before and after with a pressure test, so you can see the documented improvement rather than taking our word for it. Call (830) 549-6847 for an inspection and written estimate.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Converse since 2013.