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.
Fast, Reliable Air Duct Repair Across Seguin
Most Seguin homes need Air Duct Repair work after years of the city’s pecan pollen in spring and mountain cedar in winter have worked their way through every seam of the duct system. We find crushed flex runs, disconnected joints, and separated plenums on a weekly basis across downtown, the I-10 corridor, and the older subdivisions along FM 78 and FM 725. Our crews fix these systems right, show you photos before and after, and stand behind the work for a full year. Call (980) 447-2498 to schedule an inspection with the Seguin team.
Why Linden Air Duct Cleaning Is Seguin’s Preferred Air Duct Repair Company
We answer the phone with a live human every time. That matters in Seguin because duct problems don’t announce themselves politely: a crushed return in July means a hot house by noon, and a disconnected supply run means one bedroom never cools below 85. When you call, you get a straight answer about what a repair visit involves and what it should cost before a truck ever rolls.
Every technician who arrives at your door in Seguin has been background-checked, identity-verified, and photo-badged. You get their name and photo before the visit, and they show you a photo ID badge at the door. This is the Threshold Standard, and it has been our operating rule since 2004. Marcus Veale, who leads our repair operations, insists on it for every single job.
We have worked on late-1800s homes near downtown Seguin where original sheet-metal duct runs at odd angles through chases that were never designed for forced air. We have worked on 1990s tract homes off Kingsbury Street where builder-grade flex has simply given up. We know what those systems look like when we open them, and we know what it costs to put them right.
Scheduling and dispatch are coordinated from our San Antonio office, and crews serve Seguin locally throughout the week.
Ductwork Repair in Seguin
Ductwork Repair in Seguin is the catch-all term for making existing runs work the way they were supposed to: re-connecting separated joints, replacing crushed flexible sections, sealing leaks at boots and plenums, and patching corroded sheet metal. A typical repair in Seguin runs $280 to $650 depending on how many runs are involved and how hard they are to reach. Homes along the Guadalupe River often need additional sealing work because river humidity keeps interior moisture high enough that even small leaks draw in damp attic air, which feeds mold growth on the inside of the duct liner.
Crushed and Disconnected Runs
Flexible duct in Seguin’s 1980s and 1990s subdivisions is hitting the end of its service life. The inner liner delaminates, kinks form at joist penetrations, and eventually the run collapses or pulls free from its collar. When that happens, conditioned air spills into the attic and the bedroom at the end of that run never reaches temperature. Replacing a single crushed flex run typically costs $120 to $220 in Seguin.
Sealing and Plenum Repair
Older Seguin homes often have air handlers sitting on return plenums that were never sealed correctly, so the system pulls attic air through gaps around the filter slot. That means whatever is in the attic – insulation fibers, pecan pollen, dust – enters the air stream continuously. Correcting this involves removing the plenum, stripping old mastic, re-setting it on a sealed base, and locking it down. Expect $200 to $400 for plenum work on a standard Seguin system.
Duct Replacement in Seguin
Duct Replacement in Seguin is the bigger job: removing failed runs entirely and installing new, properly sized and sealed duct. A partial replacement covering three to five runs typically costs $900 to $1,800 in Seguin. A full-system replacement in a larger 2,500-square-foot home runs $4,000 to $7,500 depending on attic access, run lengths, and whether the old system used flex or rigid pipe. In Seguin’s historic downtown, replacement is often the right move: the original sheet-metal trunk may still be sound, but the 30-year-old flex branches that were spliced onto it decades ago are beyond saving.
When Replacement Is the Smarter Call
If we find more than half of the runs are crushed, disconnected, or mold-contaminated on the inside, patching them one at a time costs more than a clean replacement job. We will show you camera photos of what we found so you are making the decision with real evidence, not a sales pitch.
Materials and Sizing
We use sealed hard pipe where access allows because it holds up decades longer than flex in hot Seguin attics. Where flex is the only practical option, we use R-8 or better insulated duct. Sizing matters more than most people realize: many Seguin replacement jobs are corrections of something that was never right from the start.
Trusted Brands We Service in Seguin
We work on and around equipment from the brands Seguin homes actually have, and we stock or can quickly source repair parts and filtration products from Rotobrush, Nikro, Abatement Technologies, and Guardsman for local jobs. If your air handler was built into the 1990s and the flex runs are original, we are matching to that. If it is a newer system near the I-10 growth corridor and you want an Aprilaire filter cabinet installed during the repair, we do that too. Having the right parts close by means fewer delays between diagnosis and a working system.
Common Air Duct Repair Problems We See in Seguin Homes
- Builder-grade flex runs at end of life in 1980s – 2000s subdivisions. The inner liner collapses, joints pull apart, and pressurized conditioned air bleeds into the attic instead of reaching registers. We see this constantly in neighborhoods along FM 78 and FM 725.
- Mold at supply registers in homes within a half-mile of the Guadalupe River. River-driven humidity combines with slab construction and minimal vapor barriers, so dirty duct interiors become mold delivery systems. Technicians find visible mold at boots even in relatively new homes near the river.
- Disconnected return ducts in older downtown Seguin homes. Forced-air systems were added decades after these houses were built, often with non-standard routing through inaccessible chases. Crushed runs and separated returns never seal, so the system pulls attic air and whatever is in it straight into the living space.
- Coated air handlers clogged with pecan pollen and mountain cedar. Filters get changed more often but debris still accumulates because source removal and duct sealing were never done. Pecan season in spring and cedar from December through February create a near year-round load on Seguin systems.
Pricing for Air Duct Repair in Seguin, TX
A single crushed flex run in Seguin typically costs $120 to $220 to replace. Resealing a plenum runs $200 to $400. A multi-run repair job on a typical 1990s house in Seguin is usually $350 to $700. A partial duct replacement for three to five runs runs $900 to $1,800. Full replacements in larger homes start around $4,000. Every job gets a written price before work begins. That price is the price: one flat figure per system, no per-vent add-ons, no surprise invoice after the fact. Call (980) 447-2498 for a free estimate – we walk the system, show you photos, and give you a number in writing.
We Also Serve Cities Near Seguin
Our air duct repair crews work across the wider Guadalupe County and Comal County area. In addition to Seguin, call us for Air Duct Repair service in New Braunfels, Cibolo, Schertz, and Universal City. Same Threshold Standard on every job, wherever the van stops.
Serving Seguin, TX - Our Local Coverage Area
We’re based in the Seguin 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 Seguin
Seguin sits at the center of the Texas pecan belt, so spring pecan pollen loads are heavier here than in neighboring cities, and that pollen works into duct interiors through every small leak. Add the December-through-February mountain cedar season and the Guadalupe River humidity corridor running directly through town, and you get a near year-round double burden that accelerates flex duct breakdown and fills plenums faster. It is the specific combination that makes Seguin a heavier-wear market for duct systems. Call (980) 447-2498 for an inspection if you have not had one in several years.
We use camera inspection through existing register openings and access points. A small camera pushes through the run and shows exactly where it is crushed, disconnected, or separated at the joint. We take photos while we work so you see what we see, and we only open what needs to be opened – usually an attic access, not a wall. The camera also confirms after the repair that everything is connected and sealed.
Cleaning removes what has accumulated inside the ducts and on the air handler surfaces. Repair fixes the structural problems that let particulates and moisture in: crushed runs, separated joints, unsealed plenums, failed flex. In homes near the Guadalupe River, the two go together. You can clean a system with a disconnected return, but within weeks it will pull moist attic air back in and the mold will return. We recommend repair first, then Dryer Vent Cleaning - Seguin with source-removal cleaning using negative pressure and HEPA filtration. Get a real quote at (980) 447-2498.
Yes. We work in the historic downtown district regularly. The original sheet-metal trunks in those late-1800s and early-1900s homes are often still sound, but the retrofitted flex additions and plenum connections typically are not. In one 1920s bungalow near the river, we pulled a supply register and found visible mold on the boot; a camera inspection showed the original trunk had separated from a later flex addition and crushed four runs at a joist. We performed source removal with negative pressure and HEPA filtration, replaced the crushed flex with sealed hard pipe, and verified airflow at the air handler and blower motor after sealing the plenum. That kind of layered repair is the norm for older Seguin systems, not the exception.
We run professional-grade equipment and stock or quickly source parts from Rotobrush, Nikro, Abatement Technologies, and Guardsman for filtration and air-quality upgrades. We also install Aprilaire and Honeywell filter cabinets when a homeowner wants better filtration during a repair. The brand decision depends on what your existing system is and what makes sense for your duct layout, and we will show you options before any work is ordered.
When the ducts in your Seguin home are leaking, crushed, or pushing mold-laced air into a bedroom, the sooner someone opens the system and shows you photos, the sooner you know what it actually needs. Call Linden Air Duct Cleaning at (980) 447-2498 for a free estimate. Written price before work starts, a written 365-Day Done Right Promise on every repair, and a free second visit if a covered repair doesn’t hold. If you prefer, call any time – a live person answers, and we will have a technician to Seguin quickly.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Seguin and the surrounding area since 2004.




Before
After
Before
After
Before
After