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 Alamo Heights
Air duct repair in Alamo Heights typically costs $280 – $650 for most jobs, depending on how much of the ductwork is damaged and where it runs. Homes here tend to have older systems with problems you won’t find in newer subdivisions. Our crews work in Alamo Heights every week, and we know the crawl spaces, the pier-and-beam foundations, and the 1920s-to-1960s ductwork that make this area different from any other part of San Antonio.
If you’re dealing with dust coating your registers after every storm, musty air coming through the vents, or rooms that never quite cool the way they should, call us at (430) 233-7681. We’ll send a tech who knows Alamo Heights ductwork, not just ductwork in general. Marcus Veale leads our team, and every repair gets a written price before any work begins, plus a written 365-day guarantee on the repair itself.
Why Linden Air Duct San Antonio Is Alamo Heights’s Preferred Air Duct Repair Company
We’ve worked inside enough Alamo Heights homes to know what hides behind the register covers. The Spanish Eclectic cottages off Broadway, the Craftsman bungalows near Nacogdoches Road, and the early ranches along Arcadia Place all share something: ductwork that’s been patched, spliced, and adapted for decades. Our Air Duct Repair team has repaired separated galvanized joints under pier-and-beam floors, resealed return ducts pulling clay dust from crawl spaces, and rebuilt supply runs that were never sized right when central air was first retrofitted into these houses.
Homeowners in Alamo Heights consistently tell us the same thing: they want to know who is walking through the door. So before any visit, we send the tech’s name and photo. The tech arrives in a clean, marked uniform with a photo ID badge shown at the door. Every technician is background-checked and identity-verified through the Threshold Standard, which has governed how we operate since 2004 as part of the Threshold Group family.
We don’t leave Alamo Heights guessing on price either. The written estimate you get before work starts is the price you pay. Not an estimate that grows once the van is in your driveway. That’s a standing commitment, not a promotion, and it’s why homeowners here call us back when the next duct problem shows up.
If you call at 2 a.m. on a Tuesday, a live person answers. No phone tree, no voicemail loop. We answer 24 hours a day, every day.
Styles & brands we work with
Duct Replacement in Alamo Heights
Duct replacement in Alamo Heights usually means pulling out corroded galvanized runs or collapsed sections of old flex and installing new, properly sealed ductwork. In these older homes, we’re frequently replacing ducts that have been in the crawl space since the Eisenhower administration. The job costs between $450 and $1,200 per major section for typical Alamo Heights access conditions, with an average whole-branch replacement around $800. The final number depends on how much of the run is accessible and whether we’re working in a crawl space or a tight mechanical closet.
When Replacement Beats Another Patch
Alamo Heights has a lot of original galvanized steel ductwork from the 1940s and 1950s, and once the seams start separating from repeated humidity cycles, patching buys you a year at best. When we camera-inspect a run and find three or more failed joints, or rust that has eaten through the metal, replacement is the honest answer. A new sealed duct section also stops the dust blow-in that keeps coating your registers after spring thunderstorms.
Crawl Space and Pier-and-Beam Replacement
Working under a pier-and-beam home off Arcadia Place or E Mistletoe Ave means navigating clay soil, low clearances, and return ducts that run through unsealed crawl space air. We replace those runs with code-correct materials and seal every joint with mastic, not duct tape. The result is negative pressure restored at the registers, not air pulled from the dirt below your house.
Ductwork Installation in Alamo Heights
Ductwork installation in Alamo Heights means designing and installing an entirely new duct system or adding new branches where the old layout never worked properly. Many of these homes got central air retrofitted decades ago, and the original installer often sized the ducts by guesswork. New ductwork installation here runs $2,800 – $6,500 for a typical single-system home, depending on square footage, number of runs, and crawl space access. The higher end reflects pier-and-beam work in tight mechanical closets, which is common in Alamo Heights.
Replacements Sized for Older Houses
Older Alamo Heights homes weren’t built for modern airflow demands. When we install ductwork in a 1940s bungalow, we account for the home’s actual heat load, the existing equipment, and the realities of tight closet placements. We’re not swapping like for like blindly; we’re fixing the design flaws that made your last system wheeze.
Sealing the Whole System
A new duct system is only as good as its tightest seal. After installing new runs, we apply mastic at every seam, balance airflow at each register, and verify the return side isn’t pulling from the crawl space. For pier-and-beam homes, that last step matters enormously. Unsealed returns are how radon, mold spores, and the smell of red clay get pulled into your living room.
Trusted Brands We Service in Alamo Heights
We work on all major duct and air quality equipment found in Alamo Heights homes, and we keep common replacement parts stocked so repairs don’t stall waiting on a shipment. Our crews use professional-grade Rotobrush equipment for duct cleaning and sealing prep, and we specify Aprilaire and Guardsman products when your repair includes filtration or air quality upgrades. If your system has Abatement Technologies components, we service those too. In a city where ductwork spans eight decades of materials, our techs are trained to adapt to whatever is behind the wall.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Repair Problems We See in Alamo Heights Homes
These are the failures we find again and again in Alamo Heights, and they rarely show up together in other parts of greater San Antonio:
- Corroded galvanized joints separating under pier-and-beam crawl spaces: The clay-heavy soil under these homes holds humidity after every rain, and that moisture attacks the original galvanized ductwork. When joints fail, your system starts pulling in dirt, mold spores, and whatever else lives under the house.
- Unsealed return ducts pulling musty crawl space air: Many older Alamo Heights homes run return air through unsealed crawl spaces. Every time the air handler kicks on, it depressurizes that space and pulls humid, clay-scented air straight into your living room. A freshly cleaned system smells stale again within two weeks.
- Flex duct spliced into old galvanized trunks: We see mismatched repairs everywhere. Some previous contractor connected cheap flex to a galvanized trunk without proper transitions, creating turbulence and filter bypass. Fine dust from unpaved driveways and nearby open land then coats every register.
- Storm-triggered dust blow-in after crawl space flooding: Spring thunderstorms in Alamo Heights can leave standing water in low crawl spaces. As the area dries, the air handler pulls on those wet, moldy conditions. Homeowners report sudden dust and allergy spikes within a day or two of heavy rain.
Pricing for Air Duct Repair in Alamo Heights, TX
Here’s what Alamo Heights homeowners can expect to pay, in plain numbers. A single sealed duct joint repair runs $180 – $320. Replacing a short corroded section in a crawl space runs $350 – $650. Sealing an accessible return duct through the crawl space runs $250 – $500. Full branch replacement, which is common on these older systems, runs $450 – $1,200 per section. New ductwork installation for a typical single-system Alamo Heights home runs $2,800 – $6,500. We put every price in writing before the first tool comes off the truck. Call (430) 233-7681 for a free estimate, and you’ll know the exact number before we start.
We Also Serve Cities Near Alamo Heights
While this page focuses on Air Duct Repair in Alamo Heights, our crews also work regularly in Terrell Hills, Olmos Park, San Antonio, Selma, Fair Oaks Ranch, and Windcrest. If you’re on the edge of the city limits or just outside, call and we’ll let you know exactly when a tech can be out.
Serving Alamo Heights, TX - Our Local Coverage Area
We’re based in the Alamo Heights 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 Alamo Heights
Pier-and-beam crawl spaces in Alamo Heights hold humidity from clay soil and seasonal rains, and that moisture attacks the galvanized ductwork original to these 1920s – 1950s homes. Slab-on-grade homes don’t have that same damp air circulating around the ducts, so their metal doesn’t corrode and separate at the same rate. Here, joints slip apart, returns detach, and the system starts pulling crawl space air into the house. That’s the failure we repair most in this city, and it’s a pattern you won’t see in a Terrell Hills slab home. If your registers get dusty after storms, call (430) 233-7681 for a duct inspection.
Yes. We access the ducts from the crawl space itself. For a 1940s bungalow in Alamo Heights, that usually means working under the floor joists, but we don’t cut into finished floors or walls unless the duct run is inaccessible any other way, which is rare. Our techs are used to working in tight Alamo Heights crawl spaces with low clearances. We camera-inspect first, show you the images, and then quote a flat price to repair or replace the damaged section from below. The written quote is the price you pay.
Wood heat and fireplaces add fine soot and creosote particulates to your indoor air, and that dust gets pulled into the return side of your duct system. In Alamo Heights homes with original galvanized ducts, that means more residue accumulating inside the metal runs, which then clings to damp crawl space air and accelerates corrosion at the joints. If you burn wood regularly, your ducts need cleaning more often, and you should expect repairs to joint seals to be a recurring maintenance item. Call (430) 233-7681 and we’ll assess your system’s condition and give you an honest interval for cleaning and repair.
For homes around Alamo Heights with unpaved drives, open land nearby, or significant tree cover, plan on duct cleaning every 2 to 3 years, and a visual inspection of accessible duct seams annually. The fine red clay dust from unpaved roads gets pulled into the system continuously, and when it mixes with crawl space humidity, it forms a paste that traps moisture against the metal. That shortens the life of older galvanized ductwork and makes joint separation more likely. If you’re on acreage or a long private road, your ducts are working harder than the city average.
Because your system is likely pulling air from an unsealed crawl space, and the storm changed the conditions down there. Alamo Heights sits on clay-heavy soil. After a heavy thunderstorm, that soil holds water, the crawl space humidity rises, and any disconnected or corroded duct joint in the return path starts pulling that damp, particle-laden air straight into your house. If the ducts were cleaned but the underlying leaks weren’t sealed, the dust returns immediately. That’s the core difference between a cleaning-only company and a repair company that fixes the leak. Call (430) 233-7681 and ask for a camera inspection of the return runs under your home.
One more thing worth saying plainly. Our crew serviced a Spanish Eclectic home on Arcadia Place where the homeowner reported sudden dust and allergy spikes after a spring storm. Camera inspection showed two disconnected galvanized duct joints in the crawl space, joints that had corroded and slipped apart in the high humidity. We installed new sealed sections, applied mastic at the remaining seams, and restored proper negative pressure at the registers. The homeowner called back the next day to say the musty odor was gone and the visible dust had stopped. That’s the repair work Alamo Heights homes actually need, and it’s the work we do.
If you’re ready to find out what’s happening in your ducts, call (430) 233-7681 for a free estimate. You’ll speak to a real person, get a written price, and know exactly who is coming to your door.
Written by Marcus Veale, Owner at Linden Air Duct San Antonio, serving Alamo Heights since 2004.