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 Air Duct Repair Across San Antonio
Air duct repair in San Antonio typically costs $290 – $780 for a targeted fix like resealing a separated flex run or patching a corroded sheet-metal trunk. Whole-system duct replacement in San Antonio usually lands between $2,400 and $6,200 depending on home size and attic access. Most repairs take one visit and are covered by our written 365-Day Done Right Promise. If you’re seeing dust blow from your registers, hearing air hiss from the attic, or paying to cool cedar pollen instead of your living room, call Linden Air Duct Cleaning at (980) 447-2498 and we’ll put a price in writing before any work starts.
We know San Antonio’s homes because we’ve crawled through their attics. The 1970s ranches south of Loop 1604. The early-1980s builder-grade systems near Randolph AFB. The new-construction flex duct out toward Alamo Ranch. Each neighborhood has its own failure patterns, and matching the right repair to the right house is exactly what Air Duct Repair work demands here.
Why Linden Air Duct Cleaning Is San Antonio’s Preferred Air Duct Repair Company
San Antonio homeowners tell us the same thing again and again: they want to know who’s coming to the door before they unlock it. So we send every customer the technician’s name and photo before the visit, and the tech shows a photo ID badge at the door. That’s the Threshold Standard we’ve run on since 2004, and we don’t make exceptions for anyone.
Our San Antonio customers also get a written price before any work begins. Not an estimate range. Not a verbal ballpark. A written number for the full repair, agreed to before our hands touch a single duct. If the repair fails within 365 days, we come back at no charge under the Done Right Promise. That’s what keeps our San Antonio reviews strong and our referral base growing through neighborhoods like Converse, Schertz, and the Stone Oak area.
When you call (980) 447-2498, a live person answers. Not a voicemail loop, not an automated menu. Day or night, you get a human who can schedule your San Antonio repair and answer questions about what the job will cost.
Air Duct Replacement in San Antonio
Air Duct Replacement in San Antonio means removing failed ductwork and installing new material sized correctly for your HVAC system and your home’s layout. We most often recommend it when attic flex duct has degraded past patching, when sheet-metal trunks have rusted through in multiple spots, or when post-drywall construction dust in a new home was never source-removed before move-in and has hardened onto duct walls. For San Antonio homes, expect $2,400 – $6,200 for a full-system replacement, with smaller partial replacements starting near $900.
Attic Flex-Run Replacement
The older ranch homes across the north side of San Antonio, including neighborhoods off Wetmore Road and Thousand Oaks, often hold original flex duct that has spent 30 to 40 summers baking at 140°F. The outer jacket cracks, the inner liner separates, and conditioned air leaks into the attic while attic dust gets pulled in. We replace those runs with properly sealed, insulated flex and strap them so they don’t sag and trap debris.
Sheet-Metal Trunk Replacement
When a metal trunk under the attic insulation has corroded to the point where patching won’t hold, replacement is the honest fix. We see this most often in the early-1980s systems around Universal City and Converse, where builder-grade trunks have spent four decades cycling between hot, humid summers and cooler winters. We’ll quote the replacement in writing so you know the cost before any cutting starts.
Ductwork Repair in San Antonio
Ductwork Repair in San Antonio covers the targeted fixes: resealing a separated flex-duct connection at the boot collar, patching a corroded sheet-metal section, replacing a crushed return, or closing off a disconnected branch that’s been pulling attic air into your supply side. Most San Antonio ductwork repairs run $290 – $780. The job usually takes two to four hours in the attic, and we finish with a pressure check to confirm the system holds air the way it should.
Boot Collar Resealing
When a flex-duct branch partially separates from the boot collar at the register, your system quietly pulls attic air, insulation fibers, and cedar pollen into the airflow. We see this all winter along the northeast-side corridor near Randolph AFB. We remove the old tape and mastic, clean the connection, reseal it with proper mastic and mechanical fasteners, then photograph the finished joint so you can see exactly what was done.
Crushed or Disconnected Return Repair
Return ducts in San Antonio attics get pinched by stored boxes, trampled by roofers, or simply sag loose after decades of heat cycling. A crushed return starves the air handler and forces it to pull air from wherever it can, which is usually the attic. We rebuild or rehang the return, seal every joint, and restore proper airflow to the system.
Trusted Brands We Service in San Antonio
The equipment your ducts carry matters. We stock the parts and materials San Antonio’s systems actually use, and we service ductwork tied to every major HVAC brand installed across the metro area. Our techs run professional-grade agitation and negative-pressure extraction equipment from Nikro, and we work with air-quality products from Honeywell, Aprilaire, and Abatement Technologies. When a repair includes filter upgrades or whole-home air purification, we’ll show you exactly what fits your system and what it costs before you commit to anything.
Common Air Duct Repair Problems We See in San Antonio Homes
- Separated flex-duct boot collars in early-1980s systems near Randolph AFB. The builder-grade metal trunks in this northeast-side corridor corrode, and the flex branches pull loose at the boot collars. Standard brushing passes right over the debris trap created at the gap, so we reseal first, then clean.
- Mountain cedar pollen packing into ductwork every December through February. San Antonio sits at ground zero for Ashe juniper pollen season, and those ultra-fine grains infiltrate every gap and seam in a duct system. After January, we’re pulling pollen mats out of returns across the city.
- Caliche dust accumulation in south and northwest fringe developments. The limestone soils around Alamo Ranch and developing areas south of the city create fine mineral sediment that gets drawn into return intakes on windy days. That inorganic layer compounds the allergen load and restricts airflow faster than most homeowners realize.
- Post-construction dust hardening inside new-construction flex duct. Master-planned communities along the US-281 growth corridor and the Helotes corridor have thousands of homes where drywall dust was left inside the ductwork before move-in. Once it hardens onto the duct walls, it reduces airflow and requires source-removal cleaning during the repair process.
Pricing for Air Duct Repair in San Antonio, FL
Here’s what San Antonio homeowners should expect to pay. Targeted ductwork repairs like resealing a boot collar or patching a small trunk section run $290 – $780. Replacing a single damaged flex run typically lands between $450 and $1,100. Full-system duct replacement across a 1,800-square-foot ranch runs $2,400 – $6,200 depending on access, duct length, and whether the system was damaged by moisture or just age. Every job gets a written price before work starts, and every repair carries the 365-Day Done Right Promise. Call (980) 447-2498 for a free estimate on your San Antonio repair; estimates are free, and nobody will pressure you into work you don’t need.
We Also Serve Cities Near San Antonio
Our crews serve San Antonio and the surrounding communities, including Wesley Chapel, Dade City, Zephyrhills, and Brooksville. If you’re in one of those areas and need air duct repair, the same written pricing and Threshold Standard apply. Reach us at (980) 447-2498 and we’ll get you scheduled. You can also see our full service area on the Air Duct Repair in San Antonio page.
Serving San Antonio, FL - Our Local Coverage Area
We’re based in the San Antonio 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 About Air Duct Repair in San Antonio
San Antonio sits at ground zero for mountain cedar season, which runs December through February and produces some of the highest airborne allergen counts in North America. The ultra-fine Ashe juniper pollen infiltrates residential ductwork through every gap, seam, and separated boot collar during those months. By late January, our techs are pulling pollen mats out of return ducts across the city, and homeowners are calling about dust blowing from registers. The repair demand after January is directly tied to pollen intrusion points that need sealing. Call (980) 447-2498 if your registers are blowing cedar dust this season; we’ll inspect and quote the fix in writing.
Homes built in the early 1980s around the northeast-side belt near Randolph AFB, including Universal City, Converse, and Schertz, often have builder-grade sheet-metal trunks that have corroded after four decades of heat and humidity cycling. The flex-duct branches connected to those trunks commonly separate at the boot collars, which lets attic insulation and pollen into the airflow. We were called to one Universal City ranch where a completely separated flex run was dumping attic debris into the supply side every time the air handler kicked on. We resealed the joint, replaced the damaged run, and pulled the trapped material out under negative pressure; the dust complaints stopped immediately. If your home is in this corridor, a camera inspection is the fastest way to find what’s failing.
San Antonio’s cooling season runs roughly eight months, and attics here routinely exceed 140°F in summer. That heat degrades flex-duct jackets, dries out mastic sealant, and causes metal trunks to expand and contract at joints until connections fail. The sustained heat is the primary reason so many San Antonio homes have duct connections that were sealed decades ago and are now leaking. We repair the failed connections and re-insulate where the original material has broken down.
We do. Apartment and condo buildings in San Antonio have two common problems: shared dryer vent stacks where lint accumulates far beyond the trap, and restricted attic or chase access that makes the full duct run difficult to reach without disassembling the stack. Our techs work with property managers and condo boards to schedule access, and we leave written documentation of every repair showing exactly what was done. The same written price and 365-Day Done Right Promise apply to multi-family buildings as to single-family homes in San Antonio.
Source removal means pulling contaminants out of the ductwork at the point where they’re trapped, rather than loosening debris and leaving it to blow through the system. It matters in San Antonio because our ducts accumulate a layered mix of cedar pollen, caliche dust, construction debris, and insulation fibers, and standard brushing alone often misses what’s caked at the boot collars and trunk joints. We use agitation tools under negative pressure to extract material while the system holds air, then seal every connection we open. It’s the difference between a repair that hides the problem and one that removes it.
Need air duct repair in San Antonio? Call Linden Air Duct Cleaning at (980) 447-2498 for a free estimate. A live person answers, your price comes in writing before work starts, and your repair is covered by the 365-Day Done Right Promise. Led by Marcus Veale, our team has been serving homeowners since 2004 as part of the Threshold Group family.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving San Antonio since 2004.