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 Duct Repair & Sealing Across Windcrest
Duct repair and sealing in Windcrest typically runs $380-$1,200 depending on whether we’re sealing accessible joints or replacing failed fiberglass duct board runs, and most jobs are scheduled within 2-3 business days with a written price delivered before any panel comes off. We’re familiar with Windcrest’s mid-century ranch stock - the 1955-1975 slab homes off Crestline, Midcrown, and around Windcrest Park - because our crews serve this enclave regularly from our San Antonio office, not as an afterthought. Call (726) 600-7155 for a free written estimate.
Why CleanRun Air Duct Cleaning San Antonio Is Windcrest’s Preferred Duct Repair & Sealing Company
We’ve worked in enough Windcrest attics to know what the camera will show before we climb the ladder. The planned community’s uniform build era means our technicians recognize the original fiberglass duct board, the crushed flex runs pinched at slab penetrations, and the dried mastic from 1990s retrofits that has separated in decades of 150°F summer heat. Our Duct Repair & Sealing in Windcrest reputation is built on documenting what we find, not describing it.
Windcrest homeowners receive the same deliverables as every CleanRun customer: a written price before work starts (Haven Standard Clause 1), background-checked uniformed crews identified by name before arrival, and a Documented Photo Record of every duct run before and after. The 365-Day Done Right Promise applies here exactly as it does anywhere else - in writing, not subject to manager approval. If you have a competitor’s written estimate, we’ll put our number next to it for a Free Second Opinion at no cost.
Our Duct Repair & Sealing Services in Windcrest
Duct Sealing
Most Windcrest homes we enter have measurable leakage at the plenum, boot seams, and register connections - often 25-35% of conditioned air never reaches the rooms. We seal with mastic sealant and foil-backed tape rated for unconditioned attic use, then pressure-test to verify. A typical duct sealing job in Windcrest runs $380-$650 for a single system.
Flex Duct Repair
Slab ranch attics in Windcrest bury flex runs in insulation or pinch them at boot penetrations. On a 1968 ranch off Crestline, our tech put the system under negative pressure for source removal and ran a camera inspection through the supply and return ducts - the return chase behind the air handler showed a crushed flex run pinched against the slab and boot seams shedding fiberglass dust into the airstream. We reconnected the run, sealed the boot and plenum joints with mastic sealant, and wrapped the exposed duct in the attic with foil-faced insulation so the liner stopped baking at 150°F. The homeowner’s complaint of grit on the registers disappeared after the repair rather than the cleaning alone. Flex duct repair in Windcrest typically costs $280-$520 per run.
Metal Duct Repair
Some Windcrest ranches have galvanized trunk lines with later flex branch additions. We repair separated collars, rusted sections, and failed dampers using sheet metal fabrication and mechanical fasteners, then seal with mastic. Metal repair runs $450-$780 in this market.
Duct Insulation
Original attic ducts in Windcrest lack adequate insulation by modern standards. We wrap repaired runs with foil-faced fiberglass insulation to reduce thermal loss and protect new flex from the attic heat that degraded the original materials. Insulation work is typically $320-$580 as an add-on to sealing or repair.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Windcrest
Our equipment roster includes Rotobrush agitation systems for duct interior inspection, Abatement Technologies negative-pressure extractors, and Aprilaire media filters we install when the duct repair reveals the original return grille is undersized for modern airflow. We stock mastic sealant, foil tape, and flex duct in common diameters so Windcrest jobs aren’t delayed waiting on parts. Every tool and material is named on your written scope before work begins - no generic descriptions.
Common Duct Repair & Sealing Problems We See in Windcrest Homes
- Brittle fiberglass duct board shedding into the airstream. Original fiberglass duct board interiors in 1955-1975 Windcrest attics have gone brittle from decades of 150°F+ summer thermal cycling, so cleaning agitation tools dislodge flaking liner instead of removing it. The real fix is often duct board replacement or lining repair, not another cleaning.
- Crushed or disconnected runs hidden in attic insulation. Slab-ranch supply and return runs are often buried in the attic floor or pinched at boot penetrations, creating disconnected runs that still pass a casual register check but leak heavily at the air handler plenum. Camera inspection finds what a hand at the register cannot.
- Failed retrofits from previous decades. Mastic and foil tape applied during earlier retrofits have dried and separated in unconditioned attic heat, reopening seams that let mountain cedar pollen from December-February pull straight into the return. Windcrest’s pollen load is among the heaviest in the country; failed seals make it an indoor problem.
- Undersized returns choking modern HVAC equipment. Original 1960s return chases were designed for 3-ton systems, not the 4-5 ton replacements common in Windcrest renovations. We document restricted airflow and recommend return modification when the equipment is fighting the ductwork.
Pricing for Duct Repair & Sealing in Windcrest, TX
Windcrest’s uniform housing stock lets us be specific. A typical duct sealing job - mastic at plenum, boots, and register connections, with pressure verification - runs $380-$650. Flex duct repair or replacement, including reconnection and insulation wrap, is $280-$520 per run. Metal trunk repair with fabrication starts at $450 and ranges to $780 for multi-section work. Full duct board replacement in a Windcrest ranch attic, when the original fiberglass has degraded beyond sealing, runs $1,100-$1,800 per system.
What moves the number: accessibility (buried in blown insulation versus exposed), the extent of original material degradation, and whether the job follows a camera inspection that has already identified the failure. Every price is written and agreed before work starts. No per-vent pricing. No coupon that balloons once the van is in your drive. Call (726) 600-7155 for an exact quote - estimates are free.
We Also Serve Cities Near Windcrest
Our crews work throughout the San Antonio metro, including Duct Repair & Sealing calls in Alamo Heights, Castle Hills, and Terrell Hills. Dispatch and scheduling are coordinated from our San Antonio office; crews serve Windcrest locally with the same documented standards.
Serving Windcrest, TX - Our Local Coverage Area
We’re based in the Windcrest 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 - Duct Repair & Sealing in Windcrest
Because the original fiberglass duct board in your 1955-1975 ranch has likely reached end of life. Cleaning agitation dislodges flaking liner rather than removing it, so the camera shows friable debris that sealing or replacement must address. Call (726) 600-7155 and we’ll put the scope in writing before any work starts.
We seal the plenum-to-furnace connection, all trunk-to-branch joints, boot penetrations through the slab or drywall, and register connections - every point where pressure testing shows leakage above 10% of system airflow. Mastic sealant is applied, cured, and verified. A typical Windcrest sealing scope covers 12-18 joints per system.
Yes. The San Antonio region, including Windcrest, receives some of the highest mountain cedar (Ashe juniper) pollen counts in the United States each December through February. Failed duct seams pull that pollen directly into the return system and distribute it through the house. Sealed ducts reduce the allergen load whether the HVAC is heating or cooling. Call (726) 600-7155 for an exact quote - estimates are free.
Camera inspection. We run a lighted scope through every supply and return before recommending any service. If the liner is intact, we document that and quote cleaning. If it’s flaking, crushed, or separated at the seams, we show you the image and quote repair or replacement. The photo record is yours either way.
Sealing alone won’t stop friable liner from entering the airstream. When the fiberglass duct board has degraded to shedding particles, we recommend duct board replacement or application of an internal lining product rated for HVAC use, followed by sealing of the new material. We document the condition and quote both options in writing. Call (726) 600-7155 for an exact quote - estimates are free.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Windcrest since 2013.