Most San Antonio chimney calls trace back to the place itself: clay soil heaving the chimney a fraction at a time, rain driving in through a cracked crown, or wasps nesting in a flue that sat unused all summer. We show you what we found and fix it properly.
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From the first cold-front sweep to storm-season cap repair, these are the six chimney services San Antonio homeowners book with us. This page covers chimney in San Antonio, TX end to end — the services, the local picture and the ZIP codes served.
Sweep & Cleaning
Chimney Sweep
The full professional sweep: rotary brushes scrub the flue from top to bottom while a HEPA vacuum keeps every speck of soot sealed in — the visit that keeps a chimney safe to burn in. Around San Antonio, we check mortar joints that shifting clay soil may have opened. Chimney Sweep in San Antonio, TX is one call away, every day of the week.
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Sweep & Cleaning
Chimney Cleaning
Short, smoky evening fires around San Antonio leave glazed creosote clinging to the flue walls. Creosote, soot and ash removed from the flue, smoke shelf and firebox — the deep clean that kills the campfire smell and the fire risk with it. The crews behind chimney cleaning in San Antonio, TX are the same ones who cover the ZIP codes listed below.
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Repair
Chimney Repair
Any chimney, any problem — leaks, cracks, crumbling brick, bad draw. Around Bexar County, a leaning stack often needs joint repair before it worsens. Diagnosed on camera first, then repaired properly with the right materials. Chimney Repair in San Antonio, TX starts with a real look at the problem — never a guess over the phone.
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Inspection & Care
Chimney Inspection
A full inspection of flue, liner, cap, crown, flashing and firebox — camera inside the flue, with a plain-language report of what is safe, what is not, and what can wait. In San Antonio, the camera traces the full flue for tiles cracked as clay soil shifted the stack, plus mortar gaps and creosote from short, smoky evening fires. Chimney Inspection in San Antonio, TX runs on one standard: done properly, checked, and shown to you before we leave.
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Install & Replace
Chimney Cap Installation
A quality stainless cap keeps rain, birds and sparks where they belong. Fitted to your flue, secured properly, and screened against animals. Around San Antonio, the screen is the point in summer - wasps, mud daubers and birds look for an open flue, and a fitted cap closes that door. Chimney Cap Installation in San Antonio, TX is one call away, every day of the week.
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Repair
Chimney Liner Repair
Cracked tiles, gaps at the joints, a liner that is shifting — liner faults found on camera and repaired so hot gases stay inside the San Antonio flue where they belong. A sound liner matters most on the coldest nights, when the flue finally works hard. The crews behind chimney liner repair in San Antonio, TX are the same ones who cover the ZIP codes listed below.
Get a free estimateNeed something else — a damper, a blower, a smoke problem, a bird in the flue? We cover all 27 fireplace specialties. Call (888) 258-0797 and describe it.
A chimney in San Antonio is not fighting a long winter - it is fighting clay soil that shifts under the masonry, heavy rain looking for a way in, storm damage up top, and long idle months in between. This is what we actually find, and what we check on every visit.
Storm season in San Antonio throws hail, driving wind and falling limbs at the chimney top. Caps dent, crack or tear loose, flashing lifts, and a single storm can open a flue to rain and animals overnight. After a hard storm is the right time to check the top, not the next fire.
A flue that sits unused for months in San Antonio is prime shelter: wasps and mud daubers build in the warm, protected chimney, and birds nest on the smoke shelf. Nesting blocks the draft, and lighting a fire under it pushes smoke and carbon monoxide into the room. A screened cap ends the cycle.
Short burning seasons here encourage short, cool fires - an evening fire lit and let to smolder - and that pattern lays down glazed creosote faster than hot, steady fires do. Even a mild Bexar County winter can coat a flue. Sweeping is fire prevention here too, not just housekeeping for heavy burners.
Where a chimney passes through the roof, flashing is the seal - and shifting masonry and storm wind both work it loose in Texas. Failed flashing is one of the most common leak sources we find, showing up as ceiling stains near the fireplace. We check the flashing line on every leak call.
San Antonio sits in Bexar County, and the ZIP list at the bottom of this page covers 65 serviceable ZIP codes — 78201 through 78285. The closest served neighbors are Balcones Heights, Olmos Park, Alamo Heights, and every one of them is covered by the same crews, the same day, under the same number: (888) 258-0797.
Same-day service, free estimates, licensed & insured — and a flue you can see on camera, clean from top to bottom.
Yes - it is one of the main masonry problems we see in San Antonio. Clay soil swells when wet and shrinks when dry, moving the footing a fraction at a time. Masonry cannot flex with it, so mortar joints open, crowns crack, and chimneys can lean. Caught early, joint repair holds; ignored, it becomes structural work.
At least once a year if you burn at all regularly. Short, cool evening fires lay down glazed creosote faster than hot fires do, and an idle flue collects nests and debris all summer. The annual sweep clears the buildup and blockages, and checks the cap, crown and liner as well.
Do not light a fire, and do not spray into the flue yourself. Wasps and mud daubers nest in idle San Antonio flues, and the nesting blocks the draft, so a fire would push smoke and carbon monoxide into the room. We clear the flue safely, check the liner for damage, and fit a screened cap so it cannot happen again.
Most often a damaged or missing cap, a cracked crown, or failed flashing where the chimney meets the roof. Heavy Texas rain tests all three at once, and heat-cracked crowns give it an easy path. We trace the entry point from the top down and repair the actual source, not just the stain inside.
Get it inspected promptly. A lean usually means the soil under one side moved more than the other, and the same movement is cracking mortar and opening the joint where the chimney meets the house. Early movement can often be stabilized with joint and flashing repair; a lean left for years becomes a rebuild.
No — and be wary of anyone who does. Every chimney fails differently, so a phone price is a guess that changes at your door. Our estimates are free: a tech looks at the actual problem, then gives you one clear price before any work starts.
Chimney Service Co is a national company with local technicians serving San Antonio street addresses across the ZIP codes below — same-day service and free estimates, every day 8 AM – 8 PM. More of Texas is covered from our Texas page. The San Antonio list below covers 65 ZIP codes, 78201 through 78285.
Don't see your ZIP? San Antonio also uses P.O. Box and single-organization ZIP codes that have no street addresses — call (888) 258-0797 and we will confirm coverage for your street address on the call.
Also serving nearby: Balcones Heights, TX · Olmos Park, TX · Alamo Heights, TX · Terrell Hills, TX · Castle Hills, TX · Leon Valley, TX.
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