Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Fast, Reliable Air Duct Repair Across San Antonio
Air duct repair in San Antonio typically costs between $275 and $850 depending on what’s actually wrong, and most repairs take one visit to complete. If you’re noticing weak airflow from certain vents, a musty smell that gets stronger when the AC kicks on, or dust settling on furniture within a day or two of cleaning, the problem is usually in the ductwork itself, not the air handler. Our crews work in San Antonio neighborhoods every week, from Monte Vista to Stone Oak to Alamo Ranch, so we know exactly what this city’s heat and caliche dust do to duct systems. Call (430) 233-7681 for a free estimate and we’ll send a background-checked technician with a written price before any work begins.
Why Linden Air Duct San Antonio Is San Antonio’s Preferred Air Duct Repair Company
We’ve been repairing ducts in San Antonio long enough to know that no two homes here fail the same way. A 1980s slab-on-grade house in Thousand Oaks has different problems than a 1930s pier-and-beam in King William, and a 2000s build near SeaWorld has different problems than either. Our technicians are background-checked, identity-verified, and show up in a marked uniform with a photo ID badge at the door. You get the tech’s name and photo before the visit, so you know who’s pulling into the driveway. Written pricing comes before any work starts, every repair carries a written 365-day guarantee, and if a covered repair doesn’t hold, we come back free. Marcus Veale runs our San Antonio operation, and he holds every job to the Threshold Standard, the verification protocol our crews have followed since 2004.
Styles & brands we work with
Air Duct Replacement in San Antonio
Air Duct Replacement in San Antonio most often means replacing flexible duct runs that have been cooked beyond repair in attics that hit 130°F and hotter during July and August. The inner liner splits, the outer jacket tears away from the collars, and the duct starts leaking conditioned air straight into the attic while pulling in fiberglass insulation and caliche dust. Replacing a typical branch run in San Antonio costs $180 – $320 per run, and a full-system replacement in a 2,000-square-foot home usually lands between $1,200 and $2,800 depending on run length, accessibility, and whether the plenum connections need rework. We cut and fit the new duct, seal collars with mastic, and re-insulate everything to code.
When Replacement Beats Repair
If the duct is over 20 years old and already brittle, patching one split usually means chasing the next one six months later. In San Antonio’s heat, old flex duct doesn’t heal, it just keeps cracking. We’ll tell you straight if a repair will hold or if replacement is the honest option.
What Replacement Includes
Every replacement job includes new R-8 rated flex duct, sealed collars at both ends, and a pressure check to confirm the run is tight before we climb down from the attic. We remove the old duct from the property and leave the attic cleaner than we found it.
Ductwork Repair in San Antonio
Ductwork Repair in San Antonio usually means re-securing connections that have pulled apart, sealing return leaks that pull crawlspace or attic air into the system, and repairing crushed runs. In slab-on-grade homes built from the 1970s through the 2000s, undersized returns create negative pressure that literally sucks return ducts apart at the seams. In pier-and-beam homes like those in Monte Vista, original metal ducts corrode at the joints and open gaps that let crawlspace air bypass the filter entirely. A typical ductwork repair in San Antonio runs $275 – $650, depending on what’s loose, what’s split, and what’s leaking. The price is written down before we touch anything.
Sealing Joints and Rerouting Runs
Most of the ductwork repairs we do in San Antonio are sealing jobs: pulling apart loose collars, re-securing them with screws, and sealing the joint with mastic so it can’t leak again. When a run is crushed beyond use, we reroute it around the obstruction with proper hangers.
Return-Side Problems
A surprising number of San Antonio homes have return ducts that were undersized from the day they were built. Negative pressure collapses the duct or pulls connections apart, and that’s when you start smelling attic air through the vents. Fixing the return side is often the difference between a system that works and one that keeps breaking.
Trusted Brands We Service in San Antonio
We service and repair ductwork from every major manufacturer, and our San Antonio trucks carry fittings, collars, and mastic for brands including Rotobrush and Nikro systems, plus filtration products from Abatement Technologies and Guardsman. That means most repairs don’t wait on a parts order. Our crews coordinate scheduling from the San Antonio office, so when you call, you’re talking to someone who can get a crew to your neighborhood without a runaround.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Repair Problems We See in San Antonio Homes
- Split flexible ducts in hot attics. San Antonio attics routinely exceed 130°F in summer, and that heat embrittles the inner liner of flex duct until it splits. The system leaks conditioned air into the attic and pulls in insulation fibers and caliche dust through the gap.
- Disconnected metal ducts in pier-and-beam homes. In neighborhoods like Monte Vista and King William, original metal supply ducts from the 1950s and 60s corrode and separate at the seams. Crawlspace air laden with limestone powder and mold spores bypasses the filter and coats every register.
- Collapsed return ducts from negative pressure. Slab-on-grade homes built between the 1970s and 2000s often have returns too small for the system. The vacuum effect pulls return ducts apart at connections, and the system starts inhaling attic air instead of house air.
- Crushed runs from attic storage. We regularly find flex duct flattened under boxes, holiday decorations, and old furniture in San Antonio attics. A crushed duct restricts airflow to entire rooms and the added pressure can separate joints elsewhere.
Pricing for Air Duct Repair in San Antonio, TX
Here’s honesty about what duct repair costs in San Antonio. Simple resealing and re-securing of one or two joints runs $275 – $450. Replacing a single flex run runs $180 – $320. A more involved repair, like rerouting a crushed run or fixing a disconnected trunk line, lands between $450 and $850. Full-system replacement in an average San Antonio home runs $1,200 – $2,800. The price is one flat number per system, agreed before the work starts, and it doesn’t change when the technician finds a stubborn connection or a tight corner. Call (430) 233-7681 and we’ll give you a written quote before any work is scheduled.
We Also Serve Cities Near San Antonio
Beyond San Antonio proper, our crews handle Air Duct Repair work in San Antonio and the surrounding communities including Converse and Universal City. If you’re a few miles outside the city limits, call and we’ll confirm coverage for your neighborhood.
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
That white powder is caliche dust, a fine limestone particulate common in San Antonio’s soil. Spring thunderstorms and construction activity kick it into the air, and it gets pulled into your duct system through soffit vents, slab penetrations, or leaks in the return side. The fix is sealing those leak points and, in homes with crawlspaces, sealing the return plenum. Call (430) 233-7681 and we’ll locate the leak and seal it, same visit in most cases.
Most original metal ducts can be repaired rather than replaced. We clean the corroded joint, re-secure the connection, and seal it with mastic. Replacement only becomes necessary when the metal itself has rusted through in multiple places or the duct has been crushed. We’ll show you the damage before recommending either path, and the price is written either way.
Attic temperatures in San Antonio regularly pass 130°F in July and August, and that heat breaks down the plasticized inner liner of flex duct. The liner becomes brittle, splits, and separates from the wire coil. The outer jacket then tears away from the duct collars, and the whole run starts leaking. This is the single most common repair we do in San Antonio between June and September.
The most common post-cleaning repair is sealing leaks that were exposed during the cleaning. When our team runs agitation tools through San Antonio ducts, they often uncover loose collars, separated joints, and crushed runs that were hiding under years of debris. We flag these findings with photos, quote the repair separately, and never pressure you into adding the work.
Yes. We remove whatever is crushing the duct, assess the damage, and either re-shape the run if the coil is intact or replace the section if the inner liner has been compromised. In many San Antonio homes, this means adding proper duct hangers so the run stays off the attic floor and can’t be crushed again. Call (430) 233-7681 for a free estimate on any crushed duct repair.
Written by Marcus Veale, Owner at Linden Air Duct San Antonio, serving San Antonio homeowners since 2004.