Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
DuraFlex Chimney Cleaning in San Antonio, TX | Hadley Chimney San Antonio
We’re an independent DuraFlex service provider in San Antonio, not a manufacturer-authorized dealer. What makes our DuraFlex work different here comes down to one thing: we understand how San Antonio’s clay-rich soils move chimneys enough to pinch, kink, and crack liners that would hold up fine in cities with solid limestone underneath. Our team provides Chimney Sweep in San Antonio services for DuraFlex 316L and 304 flexible liners, Pro Connect fittings, and rain caps across the city, with written pricing before any brush touches your flue. Call (254) 276-4116 for a free estimate, and Cory Mitchell or one of our DuraFlex-trained technicians will walk you through exactly what your chimney needs.
Why San Antonio Residents Choose Us for DuraFlex Service
Cory Mitchell grew up in Los Angeles and picked up his trade foundations at Los Angeles Trade-Technical College before spending the better part of two decades cleaning, inspecting, and repairing chimneys across the Southwest. He and our crew have served San Antonio homeowners for years, doing everything from routine creosote removal, that’s the tar-like buildup inside your flue that turns into a fire hazard if you ignore it, to full liner and flashing repairs on older homes near the King William Historic District. We work on DuraFlex liners daily, which means we see how unlined chimneys in San Antonio’s shifting clay soils crack and how DuraFlex’s flexible, insulated liner handles those movements. Our hands-on repair data across Monte Vista bungalows and newer Stone Oak builds gives us a practical field perspective on what actually fails and what holds up. For broader DuraFlex sales & service information across all product lines, we keep our field notes updated with current model specs.
Every job includes a written price before work starts, a written guarantee on every repair, and a free second visit if any repair fails within 365 days. That’s our 365-Day Done Right Promise, and it applies to every DuraFlex liner replacement, cap installation, and cleaning we do in San Antonio.
Styles & brands we work with
Common DuraFlex Chimney Cleaning Problems We Solve in San Antonio
- Pinhole leaks along the corrugated seam. San Antonio’s short, mild burn seasons mean people fire up the fireplace three or four times a winter, often with lower-temperature burns. That creates acidic condensate inside a DuraFlex liner, which eats pinholes at the seam over time. We camera-inspect from the roof down to catch these before they become visible rust staining on your fireplace face.
- Crushed or kinked liner sections from foundation movement. Older central neighborhoods like Monte Vista sit on expansive clay that swells and shrinks with every wet-dry cycle. That movement shifts the chimney’s vertical alignment and can pinch a rigid DuraFlex liner at the smoke shelf. We see this constantly in pre-1960 brick chimneys and less often in newer slab-on-grade construction in Stone Oak.
- Loose or corroded top plate and cap connections. Wind-driven rain off the Gulf and high humidity mean your DuraFlex rain cap takes a beating. Loose cap connections let water run down the liner’s exterior, rusting the top plate and staining the fireplace face. We reseal and replace caps with genuine DuraFlex Top Kits when the old hardware is too far gone.
- Tea-staining or leakage at the tee snout and cleanout. San Antonio’s clay-rich backfill holds groundwater against the base of the chimney, and if the liner wasn’t properly drained to the appliance base, that trapped moisture wicks upward and stains the cleanout door. We check the tee snout connection on every cleaning and reseal with high-temp silicone when needed.
- Creosote buildup from occasional low-temperature fires. It sounds backwards, but San Antonio’s “aesthetic” fireplaces, the ones used maybe five times a year for holiday ambiance, often have stickier, harder creosote than daily burners up north. Incomplete combustion at low temperatures deposits tar-like glaze that a standard brush won’t remove. We use rotary whip heads and camera verification to make sure it’s actually gone.
DuraFlex Service in San Antonio: What Local Conditions Mean for Your Equipment
Here’s what nobody tells you in a generic DuraFlex brochure: San Antonio’s clay-rich soils expand and contract with seasonal wet-dry cycles, causing enough foundation movement to shift a chimney’s vertical alignment by a half inch or more. That misalignment can pinch a rigid DuraFlex liner at the smoke shelf, creating crease fractures that don’t exist in cities with limestone bedrock like Austin or the Hill Country proper. This is why we recommend an annual Level 1 camera inspection from the roof down for every DuraFlex-equipped chimney in San Antonio, even if you barely use the fireplace. The half-inch shift doesn’t announce itself. You find it when the liner’s already creased and the repair price just tripled. “See the problem, understand the fix, then decide, that’s how it should work.”
Last fall we pulled a DuraFlex 316L liner from a 1940s brick chimney in Monte Vista where the homeowner burned only a handful of mesquite fires each winter. The clay soil had settled the footing, and the liner developed two crease fractures plus a pinhole at the corrugated seam near the smoke shelf. We upsized to a new insulated DuraFlex liner with a Pro Connect tee, reset the top plate, and sealed the new rain cap with high-temp silicone after a Level 2 camera pass confirmed the flue was now round and gas-tight, completing the San Antonio Chimney Repair. That’s the kind of failure pattern we see in central San Antonio neighborhoods with pre-modern footings and no rebar in the chimney base.
DuraFlex Models & Products We Service in San Antonio
We service the full DuraFlex product family, with hands-on experience across every model line. The DuraFlex 316L Flexible Liner handles most wood-burning applications in San Antonio, and we routinely inspect for the pinhole-at-seam failures that show up after years of acidic condensate from short, cold fires. The DuraFlex 304 Flexible Liner gets used for gas and oil appliances, and we check those for proper termination and clearance. DuraFlex Pro Connect fittings are the standard for tee connections and offsets, and because the corrugation pitch and alloy spec matter for negative pressure and condensation, we install genuine Pro Connect components rather than generic knockoffs. DuraFlex Rain Caps and Top Kits round out our most common parts, and we keep common sizes in our San Antonio van for same-visit replacements. For non-structural brackets and top plates, we may use aftermarket stainless if it matches gauge and profile, but liners and fittings stay genuine DuraFlex.
See the difference
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AfterDuraFlex Service Pricing in San Antonio
Chimney cleaning with a camera inspection in San Antonio typically runs $189 to $349 depending on flue height, access, and creosote stage. DuraFlex liner replacement, when cleaning isn’t enough, runs $1,850 to $4,200 for a full insulated reline including Pro Connect tee, top plate, and rain cap, with multi-story or steep-pitch roofs at the higher end. A standalone cap replacement runs $225 to $495. What drives the cost locally is access, San Antonio’s older central homes often need a 32-foot ladder and rooftop work over clay-tile roofs, plus creosote stage if the previous homeowner never swept. Every estimate includes our camera findings, photos, and a written price before work starts, with no surprise charges at the door. Call (254) 276-4116 for a free estimate and we’ll tell you exactly what your DuraFlex liner needs and what it’ll cost.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio 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 – DuraFlex Chimney Cleaning in San Antonio
Yes. In San Antonio’s clay soil, the issue is lateral and vertical foundation movement that can pinch or crease the liner at the smoke shelf, so our inspections here focus on liner alignment and seam integrity at that transition point. In the Hill Country north of Loop 1604, freeze-thaw cycles in stone chimneys create a different failure pattern: hidden voids behind the stone face that let water reach the liner from outside. For your DuraFlex liner in San Antonio proper, we camera-scan from the roof down and look for crease fractures and shifted alignment, not just creosote. The liner usually stays in place for cleaning; removal is only needed if replacement is on the table.
Yes, and we see it often in San Antonio. Low-temperature, occasional fires produce acidic condensate that attacks the corrugated seam, creating pinhole leaks even with minimal creosote. The liner still looks clean, but water and flue gas are escaping through micro-pinholes. That’s why we recommend annual camera inspection even if you only burn a few mesquite fires each winter. Call (254) 276-4116 for a camera pass and we’ll show you the evidence, or show you there isn’t any.
Yes, particularly on exposed chimneys that catch wind-driven rain from Gulf storm fronts. Pro Connect fittings use a positive mechanical connection at the tee and offset, rather than a slip-fit that can loosen as the chimney shifts through wet-dry cycles. A loose slip-fit lets rainwater run down the liner’s exterior and corrode your top plate from underneath, which we see on San Antonio homes after every spring storm season. For a few extra dollars upfront, Pro Connect gives you a mechanically locked connection that stays gas-tight even when the chimney moves a quarter inch.
Foundation movement damage shows up as crease fractures or flattened sections at the smoke shelf, the offset point, or the tee connection, places where the liner can’t flex the way it was designed to. Old-age damage from acidic condensate shows up as pinholes along the corrugated seam, usually starting low and working upward. Our camera inspection tells the difference in about fifteen minutes, and we’ll text you the footage so you can see it yourself. Call (254) 276-4116 and we’ll schedule the camera pass, the inspection is included with any cleaning.
Yes, but for different reasons than wood-burning chimneys. Gas fireplaces don’t produce creosote, but they do produce acidic condensate that corrodes liners from the inside, plus soot buildup that narrows the flue over time. A DuraFlex 304 liner on a gas fireplace needs inspection for pinholes and seam failure just like a 316L on a wood burner, though the failure happens faster with gas because the appliance runs more often. We recommend a Level 2 camera inspection every two years for gas fireplaces in San Antonio. Call (254) 276-4116 for a free estimate and we’ll bring the camera.
Service Areas Near San Antonio
Our DuraFlex service covers all of San Antonio, from Monte Vista and King William to Stone Oak and Alamo Heights, plus nearby communities like DuraFlex service in Selma, DuraFlex service in Timberwood Park, Kirby, Floresville, and Terrell Hills. For a broader look at our coverage, see our San Antonio service area page. If you’re just outside the city limits, call and we’ll tell you if we can make the drive work on your schedule.
Book Your DuraFlex Service in San Antonio Today
Call (254) 276-4116 and a live person answers, 24/7. We’ll book your DuraFlex cleaning or inspection, send a background-checked technician in a tracked arrival window, and put the written price in your hand before any work begins. You’ll see the photos, know the cost, and decide with evidence, that’s how it works at Hadley Chimney San Antonio.
Written by Cory Mitchell, Owner at Hadley Chimney San Antonio, serving San Antonio since 2003.