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 | Kindling Chimney San Antonio
We provide independent DuraFlex chimney cleaning and liner service across San Antonio, from central historic districts to the sprawling suburbs north of Loop 1604. The short version: we offer Chimney Sweep in San Antonio services, plus inspect and repair DuraFlex liners weekly here, and what sets our work apart is that we treat every liner as if it protects a family sleeping upstairs, because it does. Danny Cortes and our crew know how San Antonio’s mineral-heavy humidity and freeze-thaw winters wear on stainless flues, and we’ll show you exactly what we find before any brush touches your chimney. Call (361) 491-3153 for a free estimate.
Why San Antonio Residents Choose Us for DuraFlex Service
DuraFlex liners behave differently in San Antonio than they do in Dallas or Phoenix. Our heat lingers, our humidity carries minerals that pit stainless over time, and our January freezes split masonry flues that hold liners in place. Danny grew up in Los Angeles and picked up his trade fundamentals at Los Angeles Trade-Technical College before spending the better part of two decades working chimneys up and down the Southwest. He and the crew have served San Antonio families for years, from quiet ranch-style homes in Alamo Heights to older properties near the Pearl district. Danny keeps a small notebook on every job, sketching out flue conditions so customers can see what he sees rather than just take his word for it.
We’re an independent DuraFlex service provider, not manufacturer-affiliated or authorized. That independence means we tell you plainly when a liner can be patched and when a full replacement costs less in the long run. We stock genuine DuraFlex stainless components for common San Antonio liner sizes, so most repairs don’t wait on a parts shipment. Every visit includes the Cedarwell Care Promise: shoe covers and drop cloths down before work starts, a written price in your hand before anything is touched, and a photo of the clean-up before the crew leaves. And the 365-Day Done Right Promise backs the whole job. If it’s not done right, we make it right.
Styles & brands we work with
Common DuraFlex Chimney Cleaning Problems We Solve in San Antonio
Here’s what we actually find when we pull a brush and a camera through DuraFlex liners in San Antonio homes:
- Creosote buildup in wood-burning flues. San Antonio’s many chilly winter nights mean real fires, and real fires mean creosote. In older central neighborhoods like Monte Vista and King William, we regularly find stage-two creosote that’s hardened into a glaze. That’s exactly what our creosote removal process addresses, and we’ll show you before-and-after camera shots.
- Pitting and corrosion from mineral-heavy humidity. This one’s uniquely San Antonio. Our summers push humid air through flues that run hot and cold, and the mineral content in that moisture slowly eats at liner walls. DuraFlex 316L handles it better than most, but after 15-plus years we see pitting that a visual inspection alone won’t catch. That’s why we camera every liner we clean.
- Tears near the flue collar after freezes. Our January freezes hit hard, and when a masonry chimney contracts around a rigid liner connection, something has to give. Our tech pulled a 20-foot DuraFlex 316L liner from a 1920s bungalow in Monte Vista and found a 4-inch tear near the flue collar, likely caused by that exact freeze. We replaced it with a new Pro liner, upgraded the rain cap, and confirmed proper fit with a Level 2 camera inspection.
- Rust on dampers and caps from high humidity. The same air that pits liners rusts the steel components at the top and bottom. We check caps, dampers, and flue collars on every DuraFlex service call in San Antonio, not just the liner itself.
- Failed Level 2 inspections on older DuraFlex installations. Many DuraFlex liners installed in the 1990s are now hitting the end of their service life. We’ll get into the code requirement below, but the short version: if a property transaction in San Antonio triggers a Level 2 inspection and the liner is pitted or torn, the sale stalls until it’s resolved. We handle that resolution regularly.
DuraFlex Service in San Antonio: What Local Conditions Mean for Your Equipment
Here’s a fact that matters if you own a home in San Antonio with an older DuraFlex liner. Municipal code requires a Level 2 inspection any time a property changes hands. Many of the older homes in districts like King William have original DuraFlex liners installed in the 1990s, and a meaningful number now fail that Chimney Inspection in San Antonio due to pitting from our mineral-heavy humidity. That’s not a scare tactic, it’s a transaction reality. If you’re buying or selling a home with a wood-burning fireplace in San Antonio, the liner either passes camera inspection or it doesn’t, and the cost of replacement lands somewhere in the negotiation. We do those inspections with a camera that records everything, and we walk you through the footage frame by frame. Danny will sketch the flue condition in his notebook so you can see exactly what the camera sees. If the liner passes, you’ve got documentation. If it doesn’t, we’ll give you a straight price for the fix and tell you honestly whether a partial patch makes any sense or whether full replacement is the cheaper path. For liners over 15 years old, full replacement usually wins that math.
DuraFlex Models & Products We Service in San Antonio
We work on the full DuraFlex line: the DuraFlex 316L flexible liner for wood-burning and gas applications, the DuraFlex 304 alloy liner for milder gas-only setups, the DuraFlex Pro liner with its heavier gauge construction, and the DuraFlex Smooth Wall liner where airflow and easy cleaning matter, like longer flue runs in two-story Hill Country homes. When a repair is needed, we recommend genuine DuraFlex stainless steel components. Aftermarket parts exist, and we’ve pulled plenty of them out, but a liner is a safety component. This isn’t where you save thirty dollars. For common San Antonio applications we keep genuine DuraFlex components on hand locally, which means most standard resizing and collar work happens same-visit, not after a week of waiting on freight.
See the difference
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AfterDuraFlex Service Pricing in San Antonio
Most standard chimney sweeps in San Antonio run between $190 and $290, and that includes the camera inspection of your DuraFlex liner if you’ve got one. If we’re doing a Level 2 inspection as part of a property sale, that typically falls between $275 and $450, depending on access and the condition of the existing liner. A full DuraFlex 316L liner replacement in San Antonio usually lands between $1,800 and $3,400, and the two biggest cost drivers are flue height and whether the old liner comes out cleanly or fights us on the way. Every estimate is written and in your hand before any work starts. No on-the-spot pressure, no mystery line items. Call (361) 491-3153 and we’ll give you an exact number for your chimney.
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 most cases. A Level 2 camera inspection that finds a tear, perforation, or structural weakening in a DuraFlex liner means the liner can no longer safely contain combustion gases, and San Antonio’s property transfer code won’t let the sale proceed until it’s corrected. The exception is minor pitting that hasn’t compromised wall thickness, which we’ll document and clear if it’s genuinely safe. If yours failed, call (361) 491-3153 and we’ll give you a straight replacement price.
Once per year, minimum. San Antonio’s winter burning season and our humid summers create a cycle where creosote builds during the cold months and then hardens in the damp heat, making it harder to remove the longer it sits. Homes that burn more than three cords a season, common in older central neighborhoods with drafty masonry chimneys, often need a mid-season sweep too. Call (361) 491-3153 for a free estimate and we’ll set the right schedule for your burn rate.
Sometimes. Spalling bricks don’t automatically disqualify a chimney for a new DuraFlex liner, but the structure around the liner has to be sound enough to support it and sealed against water intrusion. If the spalling is localized and the crown and cap are intact, we can often proceed. If the masonry is failing across large sections or the flue is collapsing, masonry repair comes first. We’ll tell you which situation you’re in before we sell you anything. Call (361) 491-3153 for a camera assessment.
Most gas fireplace inserts in the Hill Country north of Loop 1604 need a 3-inch or 4-inch DuraFlex 316L liner, depending on the insert’s BTU rating and the existing flue dimensions. Stone chimneys built with local limestone often have irregular flue openings, which makes exact measurement critical before ordering a liner. We measure on site, always, and we verify fit with a camera after installation. Call (361) 491-3153 and we’ll measure yours for free.
Yes, but it must be the right alloy and the right size. For a gas conversion we specify DuraFlex 316L rather than 304, because San Antonio’s mineral-heavy humidity accelerates corrosion and 316L holds up better to years of exposure. The liner also has to be sized for the gas appliance’s exhaust volume, and the old wood-burning creosote must be fully removed before conversion. We handle the whole conversion, including the creosote removal and liner sizing, and we’ll show you the camera footage when it’s done. Call (361) 491-3153 for a free conversion estimate.
Service Areas Near San Antonio
We serve San Antonio and the surrounding communities, including New Braunfels, Converse, Live Oak, Helotes, and Fair Oaks Ranch. For more on our broader coverage, see our San Antonio service area page. And if you’re north of the city, we also provide DuraFlex service in New Braunfels and DuraFlex service in Converse for the same independent, camera-verified approach.
Book Your DuraFlex Service in San Antonio Today
A clean flue is the quietest safety feature in your home, let’s make sure yours is doing its job. Call (361) 491-3153 and we’ll get your DuraFlex chimney cleaned, camera-inspected, and documented. Written price before we start, floors protected, photo of the clean-up before we leave. Backed by the 365-Day Done Right Promise.
Written by Danny Cortes, Owner at Kindling Chimney San Antonio, serving San Antonio since 2003.
For details on DuraFlex products and our service approach, see our DuraFlex sales & service page.