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 Cibolo
Duct repair and sealing in Cibolo typically costs $280-$650 for most residential jobs, with flex duct replacement running $180-$340 per run and full-system mastic sealing averaging $400-$800 depending on accessibility. Our Duct Repair & Sealing crews coordinate dispatch from our San Antonio office and carry the full equipment roster - Rotobrush agitation systems, Nikro negative-pressure extractors, and professional-grade mastic and insulation stock - so we can complete most Cibolo jobs in a single visit without waiting on parts.
We know the area. From the newer subdivisions stretching along John E Peterson Boulevard to the established homes near Comal Community, we’ve worked in Cibolo’s post-2000 builder-grade tract houses long enough to recognize what the builders left behind. If your home was built between 2000 and 2025, there’s a strong chance your ductwork still contains construction debris that should have been cleared before you moved in. That’s not a guess - it’s what our cameras show on nearly every first visit to a Cibolo home. Call (830) 402-5110 and we’ll put a written price in your hand before any work starts.
Why CleanRun Air Duct Cleaning Schertz Is Cibolo’s Preferred Duct Repair & Sealing Company
We’ve served Cibolo since the growth boom accelerated in the 2010s, and our reputation here is built on documentation, not slogans. Every job concludes with a photo record of every duct run, delivered to the customer as a standard deliverable - not an upsell. Our 365-Day Done Right Promise is backed in writing on every job, not just stated in marketing copy. If the work isn’t right, we make it right. Haven Standard Clause 1.
Our crews are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. Scheduling is coordinated from our San Antonio office, and we carry local inventory so we’re not ordering parts while your system sits open. The equipment on every truck includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - brands you can look up independently before you agree to any price.
We also offer a Free Second Opinion on any written estimate. Bring a competitor’s quote; we’ll put our number next to it in writing, no charge.
Our Duct Repair & Sealing Services in Cibolo
Duct Sealing
Cibolo’s quickly built tract homes are the main reason this service exists. Flex duct joints in these houses are often taped or zip-tied during construction but never mastic-sealed, which means your conditioned air leaks into the attic and your system pulls in caliche dust, attic insulation fibers, and whatever pollen is circulating outside. We seal every accessible joint with professional-grade mastic - not tape, which degrades - and photograph each sealed joint for the job record. A typical duct sealing job in Cibolo runs $400-$800 for a full system, with partial sealing starting at $280.
Flex Duct Repair
The flexible ducting common in Cibolo’s post-2000 homes can collapse, develop pinholes, or crush near the air handler where turns are tight. Unlike older San Antonio neighborhoods with rigid metal ductwork, flex ducts in these newer builds are vulnerable to damage during attic work and can pull in insulation fibers through small tears. We replace damaged sections with new flex duct, properly support it to prevent sagging, and seal all connections with mastic. Flex duct repair in Cibolo typically runs $180-$340 per run, depending on length and attic accessibility.
Metal Duct Repair
While most Cibolo homes use flex duct, some custom builds and older properties near Schertz have galvanized metal ductwork that can rust at seams or separate at joints. We repair metal ducts with proper sheet-metal patches and sealant, then pressure-test the repair to confirm no leakage. Metal duct repair in Cibolo generally runs $250-$500 per section.
Duct Insulation
Attic temperatures in Cibolo exceed 130°F in summer, and uninsulated or degraded duct insulation costs you efficiency every time the system runs. We replace crushed or moisture-damaged insulation with proper R-value material, sealed at all seams. Duct insulation work in Cibolo typically ranges from $320-$680 depending on the linear footage involved.
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 Cibolo
Our trucks carry professional-grade equipment from Nikro, Honeywell, and Aprilaire - brands recognized in the HVAC trade for reliability and performance you can verify independently. We stock mastic sealant, flex duct, and insulation materials locally, so most Cibolo repairs don’t require a return visit. The equipment roster also includes Abatement Technologies and Guardsman systems for specialized applications. Everything we use is named in your written scope before work begins. No generic descriptions, no mystery tools.
Common Duct Repair & Sealing Problems We See in Cibolo Homes
- Construction debris circulating since move-in. In Cibolo’s 2000s-2020s tract homes, drywall dust, caliche limestone particulate, and spray-foam particles often remain trapped in ductwork from the original build. Our cameras regularly show this material coating blower motors and clogging registers in houses under five years old.
- Unsealed flex duct joints pulling in attic air. Builder-grade installation in Cibolo’s boom-era subdivisions frequently relies on tape or zip ties rather than mastic sealant. The result: your system draws 130°F attic air and fiberglass insulation fibers into your living space every summer.
- Cedar pollen buildup combining with existing dust. Cibolo sits in the Ashe juniper belt, and from late November through February the area experiences one of the heaviest cedar pollen seasons in North America. Pollen that penetrates return vents coats duct interiors and creates a thick, sticky layer that standard vacuuming without agitation cannot remove.
- Crushed or kinked flex duct near air handlers. Tight attic spaces and quick installation in Cibolo’s high-volume construction phases often leave flex ducts with sharp bends or compression points that restrict airflow and force the system to run longer cycles - especially costly during 100°F summer stretches.
Pricing for Duct Repair & Sealing in Cibolo, TX
We publish actual ranges because Haven Standard Clause 1 requires a written price before any work starts. Here’s what duct repair and sealing costs in Cibolo’s market:
| Service | Typical Range in Cibolo |
|---|---|
| Full-system mastic duct sealing | $400 - $800 |
| Partial duct sealing (up to 6 joints) | $280 - $450 |
| Flex duct repair / replacement (per run) | $180 - $340 |
| Metal duct repair (per section) | $250 - $500 |
| Duct insulation replacement | $320 - $680 |
| Air leak detection and repair | $220 - $480 |
Factors that affect your specific price: attic accessibility (crawl space vs. walk-in), the number of duct runs involved, whether construction debris removal is required before sealing can begin, and the condition of existing insulation. Every estimate is free, delivered in writing, and valid for 30 days. No per-vent pricing, no coupon bait. Call (830) 402-5110 for an exact quote on your system.
We Also Serve Cities Near Cibolo
Our crews work throughout the corridor - Cibolo, Schertz, Universal City, Converse, and New Braunfels - with the same equipment roster, the same written-price requirement, and the same documented photo record on every job. Scheduling is coordinated from our San Antonio office, and we carry inventory to serve all five cities without delays.
Serving Cibolo, TX - Our Local Coverage Area
We’re based in the Cibolo 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 Cibolo
Because construction debris was likely never removed before you moved in. In a home off Roy Richard Drive, our tech pulled a supply register and found the flex duct lined with a fine, chalky caliche dust and chunks of drywall that had been circulating since the home was built in 2018. We used negative pressure and agitation tools to remove the debris, then sealed every accessible joint with mastic and re-insulated a crushed section near the air handler. The homeowner said their allergy symptoms eased within days and their system no longer cycled as often. New does not mean clean in Cibolo’s boom-era construction market. Call (830) 402-5110 for a camera inspection and written estimate.
Cedar pollen from November through February penetrates return vents and coats duct interiors, compounding respiratory complaints for the season. In Cibolo’s flex-duct homes, this pollen combines with existing construction dust to form a sticky layer that restricts airflow and circulates back into living spaces. Sealed ducts and regular cleaning reduce this load significantly. We document the before-and-after condition with photos on every job. Call (830) 402-5110 to schedule before peak season.
Flex duct is lighter and faster to install, which made it the default choice during Cibolo’s rapid 2000s-2020s growth. But it crushes more easily, degrades faster in hot attics, and its inner liner can tear and pull in insulation fibers. Metal ductwork, common in older San Antonio neighborhoods, lasts longer but costs more to install. Most Cibolo repairs we perform involve flex duct damage that could have been prevented with proper support and sealing during construction. Call (830) 402-5110 for a flex duct inspection and written repair scope.
Builders should have performed a thorough duct cleaning after construction and before final HVAC startup, sealed all joints with mastic rather than tape, and protected open duct ends during drywall installation and flooring work. In Cibolo’s high-volume construction environment, these steps were frequently skipped to meet closing deadlines. The debris you breathe now is the result. We remove it, seal properly what the builder didn’t, and give you a photo record proving the difference. Call (830) 402-5110 for a written quote.
Every three to five years, or sooner if you notice uneven temperatures, rising energy bills, or increased allergy symptoms. Cibolo’s combination of caliche dust, cedar pollen, and 100°F summer runtime puts more stress on flex duct systems than moderate climates. Our inspections include a written condition report with photos, and we never recommend work that doesn’t show documented need. Call (830) 402-5110 to schedule - estimates are free.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Cibolo since 2013.