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 Bulverde
Duct repair and sealing in Bulverde typically runs $280-$680 for most residential jobs, with flex-duct replacement and full-system mastic sealing at the higher end. We dispatch crews to Bulverde from our Dallas-Fort Worth scheduling office, and most appointments are booked within a few business days. Call (726) 600-7155 for a written estimate before any work starts.
We’re familiar with the master-planned communities that define Bulverde’s housing landscape, from Johnson Ranch to Copper Canyon to the newer builds off FM 1863 and Hwy 46. These aren’t aging systems with decades of wear. They’re new homes with a specific problem: construction debris sealed inside ductwork at handover, then cooking in 140°F attics until the liner fails. Our Duct Repair & Sealing team has handled this exact scenario in dozens of Bulverde homes.
Why CleanRun Air Duct Cleaning San Antonio Is Bulverde’s Preferred Duct Repair & Sealing Company
CleanRun has worked in Bulverde since the 2010s build-out accelerated, and we’ve documented the same finding repeatedly in homes across the city: flex-duct runs installed during rapid construction carry construction-phase contamination that builders never removed. Our photo records from jobs in Johnson Ranch and Copper Canyon are consistent enough that we can usually predict what the camera will show before we open the first panel.
Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. Every job begins with a written price delivered before any panel comes off, and concludes with a Documented Photo Record of every duct run, included as standard. The 365-Day Done Right Promise applies in writing, not as a verbal assurance.
Scheduling is coordinated from our Dallas-Fort Worth office, with crews serving Bulverde locally. Calls are answered by a live person, 24/7.
Our Duct Repair & Sealing Services in Bulverde
Duct Sealing
Unsealed collars, plenums, and boots are endemic in Bulverde’s rapidly built subdivisions. We mastic-seal every joint and penetration with a brush-applied, fiber-reinforced sealant rated for the temperature swings of Hill Country attics. A typical duct sealing job in Bulverde runs $280-$450 for a single-zone system, $520-$680 for multi-zone homes common in Copper Canyon and Johnson Ranch. The written price includes all accessible runs; no per-vent add-ons.
Flex Duct Repair
Bulverde’s attic temperatures, routinely 140-160°F in July and August, degrade flex-duct inner liner faster than in flatland markets like Schertz or Universal City. We replace delaminated flex runs with new R-6 or R-8 insulated duct, secured with mechanical fasteners and mastic, not tape. Typical flex-duct repair in Bulverde: $180-$340 per run, depending on attic access and length. We photograph the degraded material before removal and the new installation after.
Metal Duct Repair
Where Bulverde homes have galvanized trunk lines, we repair separated seams, corroded sections, and failed dampers. Metal work is priced per linear foot after inspection, typically $220-$480 for residential repairs. We use professional-grade sealants compatible with metal substrates, applied under the H.A.V.E.N. Standard scope documentation.
Duct Insulation & Mastic Sealant
Re-insulation of heat-degraded flex runs is common in Bulverde two-story homes with attic duct routing. We apply closed-cell insulation or replace the run entirely, depending on liner condition. Mastic sealant work is included in our sealing scope or priced separately for targeted repairs, $150-$280 for localized collar and boot sealing.
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 Bulverde
Our equipment roster includes Rotobrush agitation systems, Nikro negative-pressure extractors, and Honeywell air-quality monitoring tools. We stock mastic sealant, flex-duct, and mechanical fasteners sized for the multi-zone systems typical in Bulverde’s newer homes. Parts availability means most repairs are completed in a single visit, with no return trip for materials.
Common Duct Repair & Sealing Problems We See in Bulverde Homes
- Construction debris sealed at handover. Drywall dust, sawdust, and limestone/caliche grit from unpaved lots enter open duct ends during framing and finishing, then get sealed inside when the system is closed up. This load sheds into the airstream for years, often mistaken for normal household dust.
- Attic heat stress degrading flex-duct liner. Bulverde’s Hill Country attics cook flex-duct inner insulation until it delaminates and sheds particulates. The failure shows up faster here than in flatland suburbs, sometimes within 5-7 years of installation.
- Unsealed collars pulling attic air and cedar pollen past the filter. Poorly mastic-sealed connections at the air handler and plenum leak unfiltered air into supply and return ducts, re-contaminating cleaned systems and overworking the blower motor.
- Two-zone and three-zone systems with unbalanced airflow. Large homes in master-planned subdivisions often have dampers set incorrectly at build, with some rooms over-pressurized and others starved. We diagnose and correct with airflow measurement and targeted sealing.
Pricing for Duct Repair & Sealing in Bulverde, TX
We publish ranges because Haven Standard Clause 1 requires a written price before work starts, every time. These figures reflect what we actually quote for Bulverde homes:
| Service | Typical Range in Bulverde |
|---|---|
| Duct sealing (single-zone) | $280-$450 |
| Duct sealing (multi-zone, 2-3 systems) | $520-$680 |
| Flex-duct repair/replacement (per run) | $180-$340 |
| Metal duct repair (residential trunk) | $220-$480 |
| Localized mastic sealing (collars, boots) | $150-$280 |
| Re-insulation of heat-degraded runs | $200-$380 per run |
Factors that move the price: attic accessibility, number of zones, extent of liner degradation, and whether construction debris requires source removal before sealing can be effective. We deliver the exact written price after inspection, not before. Estimates are free. Call (726) 600-7155.
We Also Serve Cities Near Bulverde
Our crews work throughout the northern San Antonio metro, including Schertz, Universal City, Cibolo, and Converse. Each city gets the same written-price-first protocol and Documented Photo Record. Scheduling is coordinated from our Dallas-Fort Worth office for all locations.
Serving Bulverde, TX - Our Local Coverage Area
We’re based in the Bulverde 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 Bulverde
Because construction debris gets sealed inside during rapid build-outs. In Bulverde’s master-planned subdivisions, open duct ends during framing and drywall finishing allow sawdust, drywall dust, and limestone/caliche grit to enter; the system is closed up without cleaning, and that load sheds into your airstream for years. We regularly find this in homes less than two years old in Johnson Ranch and Copper Canyon. Call (726) 600-7155 for an inspection and written estimate - estimates are free.
It’s most likely limestone and caliche dust from unpaved construction lots, combined with degraded flex-duct liner material from attic heat stress. The pale color is the tell - household dust is darker and fiber-rich. In Copper Canyon, we traced identical dust to unsealed collars at the air handler pulling attic air through degraded flex runs. A camera inspection confirms the source. Call (726) 600-7155 and we’ll show you what the camera sees, with a written price for correction.
Yes, and more aggressively than in most Texas markets. Bulverde sits in the Ashe Juniper belt, and December-through-February pollen loads are among the highest in North America. If your ducts have unsealed collars or plenum gaps, the return side pulls that pollen past your filter and distributes it through every room. Proper mastic sealing stops this infiltration. We document the leakage points with photos and seal them under the written scope. Call (726) 600-7155 for an estimate.
We run a camera inspection and look for three signs: delaminated inner liner with exposed insulation fibers, brittle or cracked outer vapor barrier, and collapsed or sagging runs where wire support has failed. In Bulverde’s 140-160°F attics, we see liner degradation in systems as young as five years. The photo record shows you exactly what we found and where. Written price for repair follows the inspection. Call (726) 600-7155.
After cleaning, always. Sealing first traps construction debris and pollen load inside the system; cleaning first removes the contamination, then sealing prevents re-infiltration. In Bulverde homes with heavy construction debris, we perform source removal under negative-pressure extraction with HEPA filtration, then mastic-seal all accessible joints. The 365-Day Done Right Promise covers the combined scope. Call (726) 600-7155 for a written estimate on the full sequence.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Bulverde since 2013.