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 runs $280 – $650 for most jobs, depending on whether we’re resealing a separated boot collar or replacing a full flex run. We work across Bexar County every day, from Alamo Ranch west of Loop 1604 to the Randolph AFB corridor near Converse. When a duct separates in your attic, it’s not just wasting conditioned air – it’s pulling 140-degree attic air into your home. Call us at (980) 447-2498 and we’ll send a technician who knows exactly what San Antonio attics do to ductwork.
If you’re reading this because a room won’t cool or your energy bill jumped, skip ahead to the pricing section. If you want to understand what’s actually failing in your attic, keep reading. Either way, you’ll get a written price before any work begins.
Why Linden Air Duct Cleaning Is San Antonio’s Preferred Air Duct Repair Company
Marcus Veale leads our San Antonio crew, and he’s spent years crawling through the kind of attics most people never see: 1970s ranch homes off Bandera Road with original flex runs, 1980s builder-grade systems near Universal City, and new construction along the US-281 corridor where post-drywall dust coats everything. That experience matters because a duct system in a 1990s slab-on-grade home fails differently than one in a 2015 master-planned community, and the repair approach differs too.
We’ve built our reputation in San Antonio on one thing: telling you the truth about what’s in your ducts before we touch anything. The camera inspection comes first. You see what we see. Then you get a written price for the Air Duct Repair work – not after we’ve opened your walls, but before we start. Every repair we do carries the 365-Day Done Right Promise in writing. If a covered repair doesn’t hold, we come back at no charge.
And yes, a real person answers the phone, any hour. You won’t wait through a callback queue when your AC is running but one bedroom feels like a sauna.
HVAC Duct Installation in San Antonio
HVAC Duct Installation in San Antonio means running properly sized, properly sealed ductwork from the plenum to the register boots – often through attics that hit 140°F by June. When your existing system has collapsed flex runs, separated connections, or trunks rusted through from decades of humidity cycling, the honest answer is sometimes replacement rather than patching. A full HVAC duct installation in a San Antonio home typically runs $2,800 – $5,000 depending on square footage, number of runs, and attic access.
The number one mistake we see in new duct installations across the city is undersized flex with too many bends. Air doesn’t turn corners well at the volumes a San Antonio AC system pushes from April through November. We size every run based on your system’s actual CFM output, not a generic chart.
Flex runs routed and sealed
We replace old, degraded flex with code-rated R-6 or R-8 duct, support it properly every four feet, and seal every connection with mastic and a mechanical fastener. Zip ties and duct tape are not how you hold a critical connection together in a 140-degree attic.
Post-drywall dust removal
On newer San Antonio builds – particularly in the far northwest and along the 281 growth corridor – we regularly find construction dust packed into brand-new duct systems. If you’re moving into a new house and every surface gets dusty days after you wipe it, ask us to camera-inspect the ducts before we install anything else.
Air Duct Replacement in San Antonio
Air Duct Replacement in San Antonio is the job nobody wants until they see the camera footage. When a flex run has collapsed, a metal trunk has rusted through, or the previous installer did work we can’t safely repair, replacement is the only fix that actually lasts. A partial air duct replacement – a few runs on one side of the house – runs $900 – $1,800 in the San Antonio market. A full replacement with all new boots and a complete reseal typically lands between $2,600 and $4,800.
San Antonio’s eight-month cooling season is brutal on ductwork. Systems here cycle air far more hours per year than anything in Dallas or Houston, which means connections fail sooner and debris loads build faster. If the house was built in the 1970s or 1980s, the odds are good you’re still running at least some original duct.
Boot collar resealing and reconnection
A separated boot collar is the most common fix we do, but it’s also the most commonly botched. We pull the run, clean the collar surface, reconnect with mastic and a mechanical draw band, then test under system pressure. Half our repair calls involving a “failed previous repair” come down to someone gluing a dusty surface and calling it done.
Metal trunk sections on older homes
Older San Antonio ranch homes built with sheet-metal trunks often develop rust-through where condensation has dripped for decades. We can replace individual trunk sections and keep the rest of the system intact, which saves a full replacement when only part of the metal is compromised.
Trusted Brands We Service in San Antonio
We run professional-grade equipment from Nikro for negative-pressure extraction and HEPA-filtered debris containment, and we work with Aprilaire and Honeywell filtration products when a home’s air quality calls for something more than the standard one-inch filter. We stock common flex duct sizes, boot configurations, and sealing materials locally, so most San Antonio repair jobs don’t wait on parts. If you’ve got an Abatement Technologies filter housing or an Aprilaire media cabinet that needs work, our crew handles those systems regularly. Parts arrive from our local inventory or a distributor we can reach same-week, not next month.
Common Air Duct Repair Problems We See in San Antonio Homes
- Separated boot collars on 1980s flex runs. The flex branch pulls away from the metal boot at the register, usually from heat degradation and gravity working together over 30 years. Every supply cycle dumps conditioned air into the attic instead of the room.
- Caliche dust crusting inside return trunks. That fine mineral grit from unpaved roads and construction areas gets pulled into the return side and bakes onto the duct walls over the cooling season. It takes agitation tools and a full negative-pressure pass to actually remove it.
- Collapsed or sagging flex runs. Plastic flex gets brittle in 140-degree attics, and when it’s not supported every four feet, it sags, kinks, and eventually chokes airflow entirely. The room at the end of that run never cools right.
- Post-drywall construction dust in new builds. Those tens of thousands of new homes going up around Alamo Ranch and the Helotes corridor almost always have drywall dust packed into the ductwork. The systems were never cleaned after construction, and the dust sets hard in attic heat.
Pricing for Air Duct Repair in San Antonio, TX
A typical air duct repair in San Antonio runs $280 – $650 for a single boot collar reseal or a short flex-run replacement. A partial replacement job – say, three or four runs on the south side of the house – lands between $900 and $1,800. Full duct replacement in a standard 2,000-square-foot San Antonio home usually comes in between $2,600 and $4,800, depending on attic access, system configuration, and how much of the old metal or flex has to come out. Those are honest whole-system ranges, not per-vent teaser prices. Every job gets a written price before work begins, and every repair carries the 365-Day Done Right Promise. Call (980) 447-2498 for a free estimate and we’ll tell you exactly what the camera sees.
We Also Serve Cities Near San Antonio
Our service area covers the full San Antonio metro, and we work routinely in Converse, Universal City, Schertz, and Helotes. If you’re on a ranch road off Culebra west of the loop or in a subdivision near Randolph AFB, you’re in our territory. Same crew, same written pricing, same guarantee.
Serving San Antonio, TX - 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
Every 2 to 3 years is realistic for a rural San Antonio property on caliche or gravel roads, compared to every 3 to 5 for a paved subdivision home. The mineral dust load is simply higher, and it bakes onto duct walls over the cooling season. If you burn wood, pull it to every 2 years, because ash and fine road dust together form a crust that brush-only cleaning can’t break up. Call (980) 447-2498 and we’ll camera-inspect before recommending any cleaning schedule.
Yes, and it’s not subtle. December through February, mountain cedar pollen blankets the region, and systems pull enormous quantities of it through the return side. On rural properties, that ultra-fine pollen adheres to the caliche dust already coating the duct walls. We find a sediment-pollen crust every spring that city homes simply don’t accumulate at the same rate. Our repair crew gets a surge of calls every January and February from homeowners whose allergies spiked and whose ducts hadn’t been looked at in years. We inspect with a camera first, then recommend repair or cleaning based on what we actually see.
Because 30 to 40 years of attic heat has cooked the flex into a brittle shell at the point where it connects to the metal register boot. The connection fails mechanically – the flex shrinks, the tape or zip tie degrades, and gravity finishes the job. On rural ranches, the problem compounds because dust loads add weight to the flex walls, increasing sag and pull at the connection. The fix is a proper reseal with mastic and a mechanical draw band, not more tape. If the flex has degraded too far, we replace the run entirely.
Yes, and we do it regularly. Detached shop and outbuilding systems tend to be undersized with long, unsupported flex runs, and the boot collars separate at the trunk in places a standard visual inspection never shows. We camera every system we repair, including outbuildings. If the system is tied to a separate air handler, we inspect that unit too – the blower wheel is often packed with the same dust that’s choking the duct. Call (980) 447-2498 and tell us about the outbuilding. We’ll schedule a full inspection.
MERV 11 to 13 is the right range for most rural San Antonio homes. MERV 8 catches some dust but lets too much fine particulate through. MERV 13 catches cedar pollen and the sub-micron mineral grit from caliche roads, but you need to confirm your system can handle the pressure drop – especially on older air handlers. We check static pressure before recommending a filter upgrade, because the wrong filter on a marginal system can reduce airflow enough to freeze a coil. Honeywell and Aprilaire both make media cabinets we install and service.
Call Linden Air Duct Cleaning for Air Duct Repair in San Antonio
You’ll get a technician whose name and photo are sent before the visit, who shows a photo ID at the door, and who gives you a written price before any work starts. That’s the Threshold Standard, and it’s been our operating procedure since 2004. No surprise invoices, no per-vent games. Just an honest answer about what’s in your ducts and what it costs to fix. Call (980) 447-2498 today for a free estimate.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving San Antonio and the surrounding Bexar County area.