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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.
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AfterHow Much Does Chimney Cleaning Cost in San Antonio?
A standard chimney sweeping in San Antonio typically runs $189 to $349 for a single flue with no major repairs, and $229 to $419 for a standard Level 1 inspection plus sweeping bundled together. Most San Antonio homeowners pay somewhere in the $210 to $280 range when the flue is in reasonable shape and no glazed creosote has built up. If your chimney hasn’t been cleaned in several years, or you burn oak and mesquite regularly during our mild winters, expect to land on the higher end of that range.
Here’s the straight answer: chimney cleaning in San Antonio is cheaper than a chimney fire, and prices have stayed fairly stable in 2026 because the work is labor-driven, not material-driven. What changes the number is the condition of the flue, the type of chimney, and whether the sweep finds damage while they’re up there.
Key Takeaways
- A standard sweep in San Antonio costs $189 – $349 for most single-flue homes.
- Adding a Level 1 inspection brings the total to $229 – $419.
- Glazed creosote removal, animal nest extraction, or a second flue adds $75 – $250 to the job.
- Alcott Chimney San Antonio gives you a written price before any work starts, so the number on the quote is the number you pay.
Chimney Cleaning Cost Breakdown (2026)
Here’s what you can expect to pay in the San Antonio metro as of 2026, based on the chimneys we see across Alamo Heights, Stone Oak, Helotes, Terrell Hills, and the older neighborhoods around Monte Vista and King William. These aren’t national averages pulled from a search engine. They reflect the flue conditions, chimney types, and fireplace usage patterns specific to Bexar County.
| Service | Typical Cost Range | Notes |
|---|---|---|
| Standard chimney sweep (1 flue) | $189 – $349 | Includes full flue brushing, smoke shelf cleaning, and firebox cleanup. Most homes fall near $229 – $279. |
| Chimney sweep + Level 1 inspection | $229 – $419 | Recommended if you haven’t had the chimney looked at in over a year or you just bought the house. |
| Second flue (if applicable) | $75 – $150 extra | Common in two-story homes with a fireplace on each level, or a furnace flue sharing the same chimney chase. |
| Glazed creosote removal | $150 – $450 extra | Stage 3 creosote is hard and tar-like. It requires chemical treatment or mechanical removal. Price depends on severity and flue height. |
| Animal or debris removal | $100 – $250 extra | Birds, squirrels, and raccoons find San Antonio chimneys inviting. Removal plus a cap install is usually the fix. |
| Chimney cap supply and install | $125 – $325 | Stainless steel caps last longer than galvanized. We install Copperfield and Olympia Chimney caps, not box-store substitutes. |
| Level 2 inspection (video scan) | $275 – $449 | Used after a chimney fire, before selling a home, or after a major storm. Camera goes the full length of the flue. |
| Chimney repair (crown, flashing, tuckpointing) | $350 – $2,500 | Repairs are quoted separately after inspection. You get a written quote before any work begins. |
The numbers above assume a masonry chimney in decent condition. Prefabricated chimneys, often found in newer subdivisions around Cibolo Canyon and Alamo Ranch, can run slightly higher on sweep costs because they require specialized brushes and, when damaged, the panels are more expensive to replace than mortar and brick.
What Drives the Price Up or Down
Three things move the needle on chimney cleaning cost in San Antonio more than anything else:
- Time since last cleaning. If it’s been more than three years, expect heavier creosote accumulation. Heavier creosote means slower brushing and sometimes the need for chemical treatment. A chimney that gets cleaned every year rarely surprises us. One that hasn’t been touched since the house was built? That’s a different job.
- What you burn. San Antonio winters are short, but we do like our fires. Homeowners who burn unseasoned oak or cedar get more creosote. Wood that isn’t dried properly smokes more, and smoke is where creosote comes from. We see it constantly in the older neighborhoods where people have been burning whatever was available in the shed.
- Access and roof pitch. Some of the steeper roofs around Terrell Hills and the Dominion require extra ladder work and safety rigging. A chimney that’s easy to reach from a flat section of roof costs less to service than one on a 10/12 pitch with tile roofing. Our technicians factor that into the quote before they ever put a ladder up.
What Affects Chimney Cleaning Pricing in San Antonio
- Creosote stage and type. Stage 1 creosote is dusty and brushes away quickly. Stage 2 is flaky and takes longer. Stage 3 is glazed, hard, and shiny like glass. That’s the one that requires chemical treatment or rotary-loop cleaning. Stage 3 creosote combustion is the primary cause of chimney fires, and removing it takes real time and proper chemicals built for the job, not just elbow grease.
- Single vs. multiple flues. A lot of San Antonio homes built in the 1960s and 1970s have a fireplace flue and a separate flue for a gas furnace or water heater. Both need to be checked and swept. The fireplace flue collects creosote. The furnace flue collects carbon and potential blockages, especially if there’s no cap on top.
- Access to the roof. Two-story chimneys on steep-pitch roofs take longer to set up safely. Tile roofs, common in higher-end San Antonio construction, require us to work carefully and sometimes lay down protective plywood to distribute weight. You’ll see that reflected in a slightly higher quote when roof access is difficult.
- Blockages and nests. Chimney swifts are protected birds that often set up nests in the summer months. Squirrels and raccoons use chimneys as den sites. If there’s a nest, the job changes from a simple sweep to an extraction plus sanitization plus cap installation so it doesn’t happen again. Nests are a fire hazard and a carbon monoxide risk because they block draft, so this isn’t something to skip.
- Repairs discovered during cleaning. A sweep sometimes exposes a cracked flue liner, a damaged crown, or missing mortar joints that weren’t visible before. That’s when the price becomes two parts: the cleaning and the repair. You always get a separate written quote for repairs, and you’re never pressured into approving work on the spot.
- Time of year. Chimney work in San Antonio has a rhythm. The busy season starts in September and runs through January. Booking in the spring or summer can mean faster scheduling, but pricing at Alcott stays consistent year-round. We don’t surge-price the way some service industries do when cold snaps hit.
How to Save on Chimney Cleaning
Saving money on chimney cleaning doesn’t mean skipping it. Skipping it is how you end up with a four-figure repair or a fire. What you can do is be smart about bundling and timing.
- Combine sweeping with inspection. A sweep plus Level 1 inspection is cheaper as a bundle than booking them separately. It also catches problems early. We find that homeowners in San Antonio who sweep and inspect every year almost never face surprise repair bills. The ones who go five years between visits? They’re the ones facing $1,500 liner replacements.
- Install a chimney cap now, not after a problem. A $125 – $325 cap prevents birds, squirrels, rain, and debris from getting into the flue. Rain plus creosote creates an acidic slurry that eats away at mortar and brick. The cap pays for itself in one avoided repair, especially with San Antonio’s flash-flood rain patterns.
- Burn properly seasoned wood. Oak and mesquite are popular here, but they need at least 12 to 18 months of seasoning to dry out. Wet wood creates more smoke, more creosote, and in the long run more cleaning. If you’re buying firewood from someone off a truck on the side of the road, assume it isn’t seasoned. A moisture meter costs less than $40 and tells you the truth.
- Keep your damper closed when the fireplace isn’t in use. An open damper pulls conditioned air out of your home all year round and can trap humidity inside the flue. More humidity means faster creosote bonding to the flue walls.
- Book in the off-season. We schedule sweeps year-round, and spring and summer appointments are easier to get on your preferred date. If you’re not on a deadline, booking in May or June gives you flexibility without changing the price. Call (903) 515-5079 and a live person answers, 24/7, even in the off-season. There’s no voicemail queue at 2 a.m., and no callback request. You get a human.
Is Chimney Cleaning Worth the Cost?
Short answer: yes. But let’s walk through the actual math so you can see it rather than take our word for it.
A chimney sweep that costs $229 removes the creosote that causes chimney fires. A chimney fire in a masonry chimney can crack flue liners, damage the brick structure, and sometimes extend into the attic. Repairing after a chimney fire in San Antonio typically starts at $2,000 to $6,000, and that’s before any structural rebuild. If a prefab chimney gets damaged by a fire, replacement often runs $4,000 to $9,000 because the entire chase has to be opened up.
So the comparison is $229 a year versus thousands in repair, plus the risk to your home and the people in it. That’s the calculation Ruben Castellano wants every homeowner to make. A clean flue is cheap insurance.
There’s also the carbon monoxide side. A blocked flue doesn’t just stop smoke from venting. It stops deadly gases from leaving the house. Every year in Bexar County, emergency crews respond to carbon monoxide incidents that trace back to blocked or damaged flues. A sweep and inspection won’t just keep your chimney working. They’ll tell you whether your home is safe to sleep in.
How Often Should You Clean Your Chimney in San Antonio?
The National Fire Protection Association, or NFPA, recommends cleaning your chimney when 1/8 inch or more of creosote builds up on the flue walls. What does that translate to in real life? Unless you burn almost every night during the winter, most San Antonio homeowners need a sweep once every one to two years.
Here’s the local reality. San Antonio’s burn season is short, roughly from Thanksgiving through February. That means many homes never accumulate the creosote levels you’d see in Colorado or New England, where fires burn nightly from October through April. If you only have a fire on weekends in December and January, you might be fine with a sweep every two years. But the inspection should still happen annually, because it’s the inspection, not the sweeping, that catches early-stage damage. Catching a cracked crown in year one costs $350 in repair. Letting it go for five years costs $2,000 and up, because water has penetrated the chimney and started eating the brick from inside.
Ruben’s rule of thumb for San Antonio: sweep at least every two years, inspect every year, and never go more than 24 months without someone qualified putting eyes on the chimney. If you burn frequently, or you notice flaking creosote or a strong smoky smell even when the damper is open, call sooner.
Why Alcott Chimney San Antonio Prices the Way We Do
We don’t do vague estimate ranges that then balloon after the technician arrives. That’s exactly the kind of pricing gamesmanship Ruben Castellano refuses to participate in. Every Alcott customer gets a written price before any work starts. Not a verbal ballpark. Not a “we’ll see when we get up there.” A written line item that tells you exactly what the sweep covers, what the inspection covers, and what, if anything, costs extra.
Here’s how our intake works. When you call (903) 515-5079, a live person answers. Not a phone tree. That person asks about your chimney: masonry or prefab, single story or two, last time it was cleaned, any known issues. From there we schedule your appointment and confirm the technician’s name and photo before they arrive. That’s the Threshold Standard, and it applies to every technician who works with us. They’re background-checked, identity-verified, uniformed, and carrying a photo ID badge they’ll show at the door. You’ll know who’s coming before you open it.
On the day of service, the technician performs the sweeping, takes photos of the flue before and after, checks the damper, smoke shelf, firebox, and cap, and then sits down with you to walk through what was found. If repairs are needed, you get a separate written quote with the repair cost, the material involved, and the coverage period on the written guarantee. No pressure. No “today only” discounts. Just the facts and the price.
And when the work is finished, you’re covered by the 365-Day Done Right Promise. If any repair we make fails within a year, the second visit is free. That’s a written guarantee on every repair we make, included at no extra charge. Not an upsell. Not a warranty you have to register for. It’s just how we operate, and it’s why we’ve been serving San Antonio homeowners since 2002 as part of the Threshold Group family.
The Materials We Use and Why They Matter
When a chimney cap needs replacing, we install Copperfield or Olympia Chimney products. When a flue liner needs repair, we specify DuraFlex liner systems or HeatShield resurfacing, depending on the situation. For chimneys that need specialized sealing or resurfacing, we use Gelco and Famco products. These are the brands chimney professionals specify because they’re built for the temperatures, expansion cycles, and chemical conditions inside a flue. They’re not what you’ll find on the shelf at a big-box hardware store.
The reason this matters to your budget: a $20 galvanized cap from a home center might last a few San Antonio summers before it rusts. A Copperfield stainless steel cap lasts decades. When Ruben quotes you $225 for a cap install, that price includes a product he’d put on his own chimney. The man runs the business on trust, and he’s not going to jeopardize that with materials built to fail.
The San Antonio Chimney Landscape: What We See in Local Homes
San Antonio’s housing stock spans three broad eras, and each has its own chimney profile. The pre-war neighborhoods like Monte Vista, Tobin Hill, and King William have masonry chimneys that are 80 to 120 years old. The brick and mortar have survived a lot, but clay flue liners from that era often show cracking, spalling, and water damage. Sweeping those chimneys requires a gentler touch and often reveals repair needs that a newer home would never have.
The mid-century stock, built from the 1950s through the 1980s, dominates neighborhoods like Churchill Estates, Oak Hills, and parts of Castle Hills. These homes typically have masonry chimneys with clay liners, and they’re now 40 to 70 years old. Crown damage is the most common issue we document. The crown, which is the concrete cap at the top of the chimney, cracks over time from expansion and contraction in the Texas heat. Once water gets through, the damage begins. Early crown repair is a fraction of what a full rebuild costs.
The new construction out toward Alamo Ranch, Cibolo Canyon, and the far West Side is mostly prefabricated chimneys with metal flue systems. These are efficient, but they’re not invincible. Metal liners corrode, panels crack, and the chase covers leak. Prefab chimneys also need sweeping and inspection just like their masonry counterparts. Homeowners sometimes think a prefab chimney doesn’t need service. That’s misinformation, and it leads to expensive replacement when the liner finally fails.
Across all three eras, the pattern Ruben and our technicians see is the same: homeowners who service their chimney regularly spend a few hundred dollars every year or two. Homeowners who ignore it until something goes wrong spend thousands. San Antonio’s freeze-thaw cycles are lighter than a northern city’s, but the summer humidity and intense heat cycles do their own damage. Brick and mortar expand and contract daily from May through September. That thermal cycling is relentless, and it’s why chimneys in Central Texas age differently than ones in the Northeast.
FAQs – Chimney Cleaning Cost
How much does a chimney sweep cost in San Antonio?
A standard chimney sweep for a single flue in San Antonio costs $189 to $349, with most homeowners paying around $229 to $279. Homes with second flues, glazed creosote, or difficult roof access will land higher. Call (903) 515-5079 for an exact quote; it’s free and the price is in writing before work begins.
Is it cheaper to clean a chimney yourself?
You can buy a DIY chimney brush kit for $40 to $100, but self-cleaning doesn’t include an inspection, doesn’t remove glazed creosote effectively, and puts you on the roof, which carries real risk. Then there’s the issue of knowing what you’re looking at. A professional sweep with inspection costs $229 to $419 in San Antonio and catches cracks, blockages, and drafting issues you’d never spot from a hardware-store brush job. When it comes to the difference between a clean flue and a safe flue, the inspection is the part that matters.
What is glazed creosote removal, and why does it cost more?
Glazed creosote is Stage 3 creosote, a hard, shiny, tar-like layer that forms when flue temperatures cycle between hot and cold repeatedly. It can’t be removed with standard brushing. It requires chemical treatments or mechanical removal with a rotary loop system. In San Antonio, glazed creosote removal adds $150 to $450 to a standard sweep, depending on how thick the glazing is and how tall the flue runs. Left alone, glazed creosote is the leading cause of chimney fires.
Can you clean my chimney the same day?
Often yes. We schedule cleanings throughout the week across San Antonio, and depending on your location and the time of year, we can frequently get a technician out the same day or next day. The best way to find out is to call (903) 515-5079. A live person answers 24/7, even if it’s late and you’re smelling smoke in the house.
Does a chimney cleaning include an inspection?
No. A sweep and a Level 1 inspection are separate services, though we recommend bundling them. A sweep alone in San Antonio runs $189 to $349. A sweep plus Level 1 inspection runs $229 to $419. The inspection adds eyes inside the flue to document cracking, water damage, and clearance issues, and it’s the single best way to catch problems before they become repair bills.
How much does it cost to repair a chimney in San Antonio?
Chimney repair costs in San Antonio vary widely based on what’s wrong. Minor crown patching starts around $350. Flashing replacement around the roofline typically runs $450 to $900. Flue liner replacement with a DuraFlex system can run $2,500 to $6,000 depending on height and access. Every repair gets a written quote before work begins, and every repair carries a written guarantee. If the repair fails within the coverage period, the second visit is free.
Do You Need Your Chimney Cleaned in San Antonio?
If it’s been more than two years since your last sweep, the answer is almost certainly yes. If you just bought a home with a fireplace and you don’t know its service history, the answer is definitely yes. If you’ve had a chimney fire, a lightning strike, or a major storm that shook the house, the answer is urgent.
Here’s what to look for: flaking or shiny creosote inside the firebox, a smell like burnt barbecue even when the fireplace is cold, smoke backing up into the room rather than drafting up the flue, or animals making noise in the chimney. Any of those signs means it’s time to pick up the phone.
Alcott Chimney San Antonio has been serving San Antonio area homeowners since 2002 as part of the Threshold Group family of home-service companies. We’re led by Ruben Castellano, and we do three things: chimney sweeping, chimney inspection, and gas fireplace repair. Every job includes a written price before work starts, a written guarantee on every repair, and a 365-Day Done Right Promise that stands behind the work for a full year.
When you call (903) 515-5079, a live person answers. You’ll know the technician’s name and see their photo before they show up, and they’ll present a photo ID badge at the door. That’s the Threshold Standard; it’s not an add-on, and it’s not negotiable. If you’re in Alamo Heights, Stone Oak, Helotes, Castle Hills, Terrell Hills, or anywhere else in Bexar County, the process is the same. Straight answers, written pricing, and a chimney that drafts the way it should.
Ready to schedule? Call (903) 515-5079 for a free estimate. We’ll tell you what it costs, put it in writing, and send a verified technician whose name and face you’ll know before the truck pulls into the driveway.
Pricing reflects the San Antonio market as of 2026. Alcott Chimney San Antonio offers free estimates – call (903) 515-5079.
Written by Ruben Castellano, Owner at Alcott Chimney San Antonio, serving San Antonio since 2002.
What Our Customers Say
"Gas fireplace pilot kept going out. Cleaned the burner, replaced the thermocouple, and explained what failed. Works first try now."
- Alicia R."Good chimney cleaning. They found a small gap in the mortar and quoted the repair, which was a bit more than I wanted to spend. Did the sweep and left the repair for later without any pressure."
- Stuart L."Cap, screen, and a full inspection with photos sent to my phone. Easy to understand and a fair price."
- Tomas Y.