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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Repair & Sealing Across Cibolo
Duct repair and sealing in Cibolo typically runs $280-$650 for most homes, with flex-duct repairs starting around $180 and whole-system mastic sealing reaching the upper end for larger tract homes. We’re the Duct Repair & Sealing crew at CleanRun, and we dispatch to Cibolo from our San Antonio coordination office - crews are usually on-site within a scheduled window that respects your time, not some vague “sometime today” promise. Call (830) 549-6847 and we’ll put a written price in your hand before a single panel comes off.
Cibolo’s different from the suburbs around it. Most of your neighbors live in homes built between 2005 and 2020, and that matters for ductwork. The production build-out moved fast here, and fast build-outs mean flex-duct connections that were taped in a hurry, return boots that never got vacuumed, and plenums still carrying drywall dust from the original certificate-of-occupancy inspection. We know the subdivisions - the DR Horton and Lennar phases off Cibolo Valley Drive, the newer builds creeping toward FM 1103, the packed developments near Green Valley Road - because we’ve pulled debris out of their ducts that dates to the Bush administration.
Why CleanRun Air Duct Cleaning New Braunfels Is Cibolo’s Preferred Duct Repair & Sealing Company
We’ve served Cibolo since the brand’s founding in 2013, and the pattern we see here is consistent: homeowners who paid a premium for a “new” house in 2015 or 2018 are shocked by what the camera shows inside their return boots. Our 52,000+ home record includes hundreds of Cibolo properties, and every one left with a documented photo record of what we found, what we did, and what it looked like after.
Our technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. The 365-Day Done Right Promise applies in Cibolo exactly as it does everywhere else: if the work isn’t right, we make it right, backed in writing on every job. No manager approval required. No runaround.
We’re not the fastest to answer the phone because we cut corners; we’re fast because all calls are answered by a live person, 24/7, and because Cibolo is a core service area for our crews. Scheduling is coordinated from our San Antonio office, but the van that rolls up your driveway knows Cibolo’s caliche dust, its slab-foundation builds, and the way Gulf humidity hits those flex-duct runs six months a year.
Bring us any competitor’s written estimate - we’ll deliver a free second opinion, our number next to theirs, both in writing. That’s Haven Standard Clause 1, and it’s how we work.
Our Duct Repair & Sealing Services in Cibolo
Duct Sealing
Most Cibolo homes we enter have duct leakage rates well above the 10-15% that starts costing real money on your CPS Energy bill. The problem isn’t usually a gaping hole - it’s dozens of micro-gaps at collar connections, plenum seams, and register boots where builder-grade tape has dried and curled since 2010. We seal with mastic sealant rated for the temperature swings your attic sees, then verify with pressure testing where appropriate. On a typical 2,400-square-foot Cibolo tract home, full duct sealing runs $380-$620 depending on accessibility and the condition of existing flex-duct runs.
Flex Duct Repair
Flex duct is the default in Cibolo’s production-built homes, and it’s where we find the most preventable energy loss. The stuff kinks at tight attic turns, sags between supports, and separates at collar connections when original tape gives up. We replace damaged sections with new insulated flex, support it properly to prevent future sag, and seal with mastic - not duct tape, which is a temporary label, not a permanent solution. Flex duct repair in Cibolo typically starts at $180 for a single run replacement and runs to $340 for multiple sections in hard-to-access attic spaces.
Metal Duct Repair
Some Cibolo homes, particularly custom builds in the older sections near FM 78, use galvanized metal trunk lines with flex-duct drops. Metal corrodes at seams, especially where condensation pools during our humid summers, and rust-through at the plenum connection is common on 15-year-old systems. We patch or replace metal sections, re-seal with mastic, and insulate where the original wrap has degraded. Metal duct repair in Cibolo ranges $260-$480 depending on the extent of corrosion and whether the plenum itself needs attention.
Duct Insulation
Uninsulated or degraded duct insulation in a Cibolo attic is like running your air conditioner with the windows open. Attic temperatures here hit 140°F in July, and every square foot of exposed metal or thin flex-duct wall bleeds cooled air into the void. We install fresh insulation wrap or replace insulated flex-duct runs entirely, sizing for the R-value your system needs to handle our extended cooling season. Duct insulation work in Cibolo typically runs $320-$580 for partial replacement and $680-$940 for full attic re-insulation on larger homes.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Cibolo
Our equipment roster includes professional-grade tools from Honeywell, Aprilaire, and Abatement Technologies - brands you can look up independently before you agree to any work. We stock common repair components for Cibolo’s most prevalent system types, so most flex-duct repairs and sealing jobs finish in a single visit without waiting on parts. For specialized components, our San Antonio coordination office maintains next-day relationships with regional distributors. You won’t see us improvising with hardware-store tape or shop-vac attachments. Every tool we name, we own, and we use it per manufacturer specification.
Common Duct Repair & Sealing Problems We See in Cibolo Homes
- Leaky collar connections at the air handler. The original tape on your flex-duct collars was applied in a hurry during Cibolo’s boom-era build-out, and it’s been feeding humid Gulf air and caliche dust straight into your system for a decade. We remove the old tape, clean the connection, and seal with mastic that won’t degrade in attic heat.
- Construction debris in first-floor return boots. On a slab-foundation DR Horton build off Cibolo Valley Drive, our tech pulled a first-floor return boot packed with drywall mud overspray and blown-in insulation fragments left behind when the crew hit certificate-of-occupancy - debris that had cycled through the return-air system for eleven years without a professional cleaning. We ran negative pressure with HEPA filtration, worked the boot and nearby flex-duct runs with agitation tools, then sealed the hastily-connected collar with mastic sealant and re-taped a gap that had been feeding caliche dust straight into the air handler. The homeowner said the whole-house dust she’d blamed on the new subdivision phase finally settled down.
- Sagging flex-duct runs in attic spaces. Cibolo’s attic heat accelerates the breakdown of flex-duct support straps, and unsupported duct sags, kinks, and restricts airflow to the far reaches of your home. We re-support with proper hangers and replace sections where the inner liner has collapsed.
- Caliche dust infiltration through degraded seals. The fine calcium-carbonate dust from Cibolo’s constantly disturbed caliche soils - adjacent subdivision phases, road work, landscaping - finds every gap in your return-air system. A repair that isn’t paired with proper source removal just traps that abrasive grit behind fresh mastic, where it continues to degrade your air handler and blower motor.
Pricing for Duct Repair & Sealing in Cibolo, TX
Here’s what duct repair and sealing actually costs in Cibolo’s market, based on jobs we’ve completed here:
| Service | Typical Range |
|---|---|
| Single flex-duct run repair/replacement | $180 - $340 |
| Mastic sealing of accessible ductwork (partial system) | $280 - $480 |
| Full system mastic sealing with pressure verification | $380 - $620 |
| Metal duct repair/patch (single section) | $260 - $480 |
| Duct insulation replacement (partial) | $320 - $580 |
| Duct insulation replacement (full attic) | $680 - $940 |
What moves you within these ranges? Attic accessibility, the extent of original construction debris requiring removal before sealing, whether we’re working with original builder-grade flex-duct or a prior homeowner’s patch jobs, and how many return boots need attention. Every job starts with a written price before work begins - Haven Standard Clause 1 - and includes the documented photo record of every duct run, before and after. No per-vent pricing, no teaser coupon that balloons once the truck arrives. Call (830) 549-6847 for an exact quote; estimates are free.
We Also Serve Cities Near Cibolo
Our crews work Cibolo regularly and also serve Schertz, Universal City, Converse, and New Braunfels. Each market has its own housing stock patterns and ductwork quirks - Schertz’s older 1990s builds present different challenges than Cibolo’s boom-era tract homes - but our pricing structure and documentation standards stay consistent across every city we serve.
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
Yes, and nine years is actually a common inflection point in Cibolo. The original flex-duct tape has typically dried and curled by year 8-10, collar connections loosen, and construction debris left at build-out has had nearly a decade to abrade and redistribute. We regularly find homes this age with leakage rates above 20% and return boots still packed with drywall mud. Call (830) 549-6847 and we’ll show you exactly what the camera sees.
Adjacent construction on caliche-heavy soil generates fine alkaline dust that your return-air system pulls in through every gap and degraded seal. In Cibolo’s fast-growth environment, this isn’t occasional - it’s continuous as subdivisions expand. Sealing without cleaning traps that dust inside; we remove the source first, then seal so new infiltration can’t enter. The combination is what actually solves the problem.
We won’t, and you shouldn’t let anyone else do it either. Sealing over drywall mud overspray and blown-in insulation fragments traps abrasive debris against your air handler and blower motor, accelerates component wear, and creates a humid pocket where microbial growth finds purchase. Our process removes first, seals second, documents both. That’s the standard on every job.
Verify it. The rapid resale cycle in Cibolo’s fast-growth market means sellers disclose little and buyers assume “new enough” means “clean.” We’ve opened return boots in twice-sold homes where the only “cleaning” was a shop-vac at the register face, leaving eleven years of construction debris untouched in the boot and first flex-duct run. Our camera inspection shows you what’s actually in there; the photo record becomes part of your home’s maintenance file.
Cibolo’s HVAC systems run nearly continuously from April through October, six-plus months of thermal expansion and contraction at every duct seam. Mastic sealant we apply is rated for this cycle, but it must be applied to clean, prepared surfaces - not over dust and degraded tape. The extended season also means any remaining leak pulls humid outdoor air into your system for more hours annually than in cooler climates, making proper sealing more consequential here than in markets with milder summers. Call (830) 549-6847 for an assessment of your system’s current seal integrity.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Cibolo since 2013.