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 Kirby
Air duct repair in Kirby typically runs $280 – $650 for sealing and reconnecting existing ductwork, and $1,200 – $3,400 for full or partial duct replacement. Most jobs are completed in one visit. If your home off Ackerman Road or near Kirby Middle School has rooms that never quite cool, a musty smell when the AC kicks on, or dust settling on furniture two days after you wipe it down, the problem is usually in the ducts themselves, not the unit. We’ve worked on enough 1960s brick veneer homes east of Loop 410 to know exactly what hides in those attic runs. Call (430) 233-7681 and tell us what you’re seeing. We’ll give you a straight answer and a written price before any work starts.

Why Linden Air Duct San Antonio Is Kirby’s Preferred Air Duct Repair Company
Kirby’s housing stock is specific. Post-WWII frame houses. 1970s slab-on-grade ranches. Homes built when ductwork was metal, sealed with mastic, and run through attics that hit 140 degrees in August. Our techs know what those systems look like after 50 or 60 years because they’re in them every week. Marcus Veale has built our Kirby service around one idea: homeowners should know exactly who is opening their front door, what the repair will cost, and what happens if the work doesn’t hold. That’s why every repair comes with a written guarantee, and why we come back at no charge if a covered repair fails. We’ve served homeowners across Kirby since the brand’s 2004 founding as part of the Threshold Group family, and we treat every call from this community as a job we have to earn.
Styles & brands we work with




Ductwork Repair in Kirby
Ductwork Repair in Kirby usually means one of three things: sealing failing metal seams, reconnecting runs that have pulled apart at the joints, or cutting out crushed flexible sections and splicing in new material. In a slab foundation home, this work is especially particular because much of the ductwork is embedded in or runs through the foundation itself. The fix often requires careful camera inspection to locate the failure before any cutting or sealing begins. Expect to pay $280 – $650 for typical ductwork repair in Kirby, depending on how many runs need attention and whether attic access is clear. A written price comes before we touch anything.
Sealing Failing Metal Ducts in Older Kirby Homes
Kirby homes built in the 1950s and 1960s often have their original galvanized metal ducts. The mastic used to seal those seams breaks down over decades. The result is attic air, dust, and insulation fibers pulled into your living space every time the blower runs. We remove the old, cracked mastic, clean the joint, and reseal it with heavy-duty duct sealant rated for the heat load of a Texas attic.
Repairing Disconnected Runs in Slab-Fed Systems
Slab-on-grade homes in Kirby, especially the 1970s-80s ranches south of FM 78, often route supply runs through the foundation. When those connections shift or separate underground, you get warm air blowing from vents in summer. We locate the separation with a camera, confirm where the run enters the slab, and reconnect it without unnecessary demolition.
Duct Replacement in Kirby
Duct Replacement in Kirby becomes the right call when the existing runs are beyond repair: collapsed metal, insulation that has degraded into dust, or flexible ductwork that has been chewed through by rodents or crushed by attic storage. In many Kirby attics, we find original 1960s-era metal ducts with failing mastic seals and fiberglass insulation that should have been replaced 20 years ago. A partial replacement, such as two or three runs, typically runs $1,200 – $2,200. A full system replacement in a single-story Kirby home usually lands between $2,400 and $3,400. The price depends on run length, attic height, and whether the original metal boots at the floor can be reused.
Replacing Crushed Flex Runs in Hot Kirby Attics
Flexible ductwork installed in the 1980s wasn’t built for a 40-year service life in a Kirby attic. We routinely find runs that have been flattened by boxes, HVAC service visits, or simply sagging under their own weight. When a flex run is crushed to less than 60% of its diameter, airflow drops dramatically. We cut it out and run new insulated flex, properly supported and sealed at both ends.
Full System Replacement for Older Metal Ductwork
Some Kirby homes off Seguin Road still have the full original metal duct system. When every seam is failing, every run is leaking, and the insulation wrap is falling away, patching becomes more expensive than replacing. We’ll walk you through the numbers both ways before you decide. No pressure, just the honest math.
Trusted Brands We Service in Kirby
Our Kirby crews service and install all major duct and air-quality systems, and we keep common replacement parts stocked for fast turnaround. We work with professional equipment from Rotobrush for cleaning and inspection, and we install air-quality components from Aprilaire, Abatement Technologies, and Guardsman. When a Kirby homeowner needs a replacement register, a new filter housing, or a section of insulated flex matched to what’s already in the attic, we usually have it on the truck. If it’s a specialty part, our San Antonio office coordinates dispatch so you’re not waiting a week. Linden Air Duct San Antonio covers Kirby and the surrounding area as part of the Threshold Group family of services.

Common Air Duct Repair Problems We See in Kirby Homes
- Failed mastic seals on original metal ducts. In Kirby’s post-WWII frame houses and 1960s brick veneers, the original duct sealant has turned brittle and cracked. Attic air and fiberglass fibers get drawn into the living space, making allergies worse and coating surfaces in fine dust.
- Crushed flexible runs in unconditioned attics. The 1970s-80s slab-on-grade ranch homes across Kirby often have flex ductwork that has been crushed by storage, foot traffic, or simple sagging over decades. Rooms fed by these runs get weak airflow and never reach the thermostat setting.
- Caliche dust clogging blower motors and registers. Kirby sits just east of San Antonio’s industrial corridor, and the fine caliche dust that settles across the area finds its way into duct systems faster than it does in surrounding Hill Country communities. We regularly find blower motors caked with this pale, powdery soil, which shortens motor life significantly.
- Disconnected slab-fed supply runs. In Kirby’s slab foundation homes, supply runs that pass through the foundation can separate at the boot connections. You’ll notice warm air from certain vents in summer, or rooms that stay cold all winter while others roast. It’s a repair we’ve done many times without cutting concrete.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Repair in Kirby, TX
Here are honest ranges for Kirby’s market, based on what we’ve actually charged on jobs here. Ductwork repair, including sealing and reconnecting runs, runs $280 – $650. Replacing one or two crushed flex runs usually lands between $450 and $900. Full duct replacement in a single-story Kirby home typically runs $2,400 – $3,400. Full system replacement with all new boots and supply boxes can reach $4,000+ in larger homes. What changes the price: how many runs need work, attic height and accessibility, whether the original metal boots can be reused, and how much insulation has to be moved. Every Kirby customer gets a written price before any work begins, and every repair carries a written guarantee with a free second visit if it fails. No surprise invoices at the end. Call (430) 233-7681 for an exact quote. Estimates are free.
We Also Serve Cities Near Kirby
Linden Air Duct San Antonio provides Air Duct Repair to homeowners across Kirby and the neighboring communities of San Antonio, Selma, Fair Oaks Ranch, and Alamo Heights. If you’re just outside Kirby’s city limits, call us anyway. Our crews are already in the area, and we’ll tell you straight if we can get to you this week.
Serving Kirby, TX - Our Local Coverage Area
We’re based in the Kirby 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 Kirby
The culprit is almost always failing mastic on original metal duct seams. Cleaning removes the debris inside the ducts, but it doesn’t fix the leaks in the duct walls themselves. Until those seams are resealed, attic air, dust, and insulation fibers will keep entering the system. Our techs check seam integrity during every Kirby service visit. Call (430) 233-7681 for an inspection. Estimates are free.
In most cases, yes. We use a camera to locate the exact point of collapse or disconnection, then access the run from the attic or the supply boot opening. Concrete cutting is almost never needed for the repairs we handle in Kirby’s slab-on-grade homes. If we ever determine cutting is required, you’ll know before any work is authorized.
Homes east of Loop 410 and near the industrial corridor should have their ducts inspected every 2 – 3 years. Kirby’s dry caliche dust accumulates faster than what we see in Hill Country communities, and it coats blower motors and coils quickly. If you’ve never inspected the ducts in a 40+ year old home, schedule it this fall before heating season. Call (430) 233-7681 and we’ll set a time.
We can, and in many Kirby homes it’s the right move. Original metal ducts in 1960s-era houses are often beyond sealing, with rust, separation, and degraded insulation. We replace them with properly sized, code-compliant insulated flex, sealed at every joint. You’ll get better airflow and less attic air infiltration. We’ll show you the comparison before you decide.
If a previous repair left a run collapsed, disconnected, or kinked, the blower motor works against excessive static pressure and can overheat. In some cases, an old motor was already near failure and the added restriction finishes it. We check airflow and static pressure after every repair to catch this before it leaves you without AC. Call (430) 233-7681 and we’ll diagnose it properly.
Contact Linden Air Duct San Antonio for Kirby Air Duct Repair
When you call for air duct repair in Kirby, a live person answers. You’ll get the technician’s name and photo before the visit, and a photo ID badge is shown at the door. The price is in writing before any work starts. The guarantee is in writing for 365 days after the work is done. If a covered repair fails, we come back free. That’s the standard Marcus Veale and the whole Linden team have held since 2004. Call (430) 233-7681 now for a free estimate on Air Duct Repair in Kirby.
Written by Marcus Veale, Owner at Linden Air Duct San Antonio, serving Kirby since 2004.