Level 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 sweep in San Antonio typically runs $150 to $300, and most single-story homes land near the middle of that range. If your flue also needs a Level 2 inspection or a creosote treatment, expect the total to climb toward $275 to $550. That written price comes before any work starts, so the number you hear is the number you pay.
We’re Alcott Chimney Sweep. Ruben Castellano’s team has cleaned and inspected San Antonio chimneys as part of the Threshold Group family of home-service companies since 2002. Every job includes a written guarantee, and every technician is background-checked, identity-verified, and announced to you by name and photo before arrival. You’ll know who’s coming before we knock.
Chimney Cleaning Cost Breakdown (2026)
Here’s what San Antonio homeowners actually pay in 2026, line by line. These are real market ranges, not estimates designed to disappear once a technician is on your roof.
| Service | Typical Price Range | Notes |
|---|---|---|
| Standard chimney sweep (single flue) | $150 – $300 | Most common service; includes creosote removal and a visual check |
| Two-flue sweep (fireplace + furnace) | $275 – $475 | Common in San Antonio homes with a gas furnace tied to the chimney |
| Level 1 inspection | $0 – $100 | Often bundled with a sweep; reads the accessible parts of the chimney |
| Level 2 inspection | $200 – $400 | Video scan of the flue; recommended after a chimney fire, a home sale, or new appliance install |
| Creosote removal, glazed/Stage 3 | $150 – $400 | Glazed creosote is the dangerous kind and takes extra time |
| Chimney cap install or replace | $150 – $425 | Keeps rain, San Antonio’s summer debris, and animals out of the flue |
| Damper repair or replacement | $150 – $450 | Older masonry fireplaces often need a new top-sealing damper |
| Crown repair or reseal | $275 – $700 | Small cracks after a hard freeze can grow fast |
| Flue liner install (DuraFlex stainless) | $1,800 – $4,500 | Full-length liner; materials spec’d by professionals, not substitutes |
| HeatShield resurfacing | $900 – $2,400 | Seals cracked flue tiles without a full reline |
| Masonry tuckpoint repair | $300 – $1,500 | Priced by area; common on chimneys over 30 years old |
| Gas fireplace repair (ignition, logs, control) | $150 – $600 | Parts vary; we install Gelco, Olympia Chimney, Famco, and Copperfield components |
Sweeping alone is rarely the end of the story. What pushes a San Antonio chimney job above the base range is what the technician sees once they’re inside the flue. Glazed creosote, cracked flue tiles, a rusted damper, or a chimney crown that took damage during a freeze event all add work. Damage found during the sweep is documented and quoted in writing before anything else happens. You decide whether to proceed. No surprise line items, no pressure to approve work on the spot.
If you’re looking for the broader picture of how a sweep fits into annual maintenance, our home page covers the three core services we offer: chimney sweeping, chimney inspection, and gas fireplace repair.
What Affects Chimney Cleaning Pricing in San Antonio
Six things move the price of a chimney cleaning in San Antonio more than anything else. Knowing them ahead of time helps you read any quote with a sharp eye.
- How much creosote is in the flue. A lightly dirtied flue from occasional fires cleans fast. A heavy, glazed buildup from burning green wood or a poorly drafting fireplace takes longer and more equipment. Creosote is the tar-like residue that causes most chimney fires, and Stage 3 glazed creosote is the hardest to remove.
- Chimney height and roof pitch. A single-story home with a shallow roof is a quicker job than a two-story with a steep pitch. Most San Antonio neighborhoods are single-story, but pockets of Stone Oak, Alamo Heights, and Terrell Hills have taller stacks that take longer to access safely.
- Number of flues. Many San Antonio homes run a fireplace flue and a separate furnace flue through the same chimney. Two flues, two sweeps, higher price. This is where the quote starts to separate from the cheap flat-rate ads.
- Chimney location and access. A chimney boxed in behind a finished wall, or one with rusted-out cleanout doors, slows the work. Older masonry chimneys in Monte Vista and King William often need extra care around original stonework.
- Type of fuel. Wood-burning fireplaces leave the most creosote. Gas fireplaces leave less soot but more corrosion risk in the flue liner. San Antonio’s mild winters mean many families run gas logs, which shifts the pricing toward inspection over heavy cleaning.
- Add-ons you approve. The sweep itself is one line. A cap, a crown reseal, a damper replacement, or a Level 2 inspection are separate line items, each with its own written price before work starts.
Local climate matters more than most homeowners expect. San Antonio swings from 100-degree summers to the occasional hard freeze. That freeze-thaw cycle cracks chimney crowns and mortar joints faster than a stable climate would. Masonry that looks fine in July can show spalling by the following spring. In areas like Leon Valley and Helotes where older homes sit under heavy tree cover, we also find more animal nesting and leaf debris blocking the flue, which turns a routine sweep into a more involved one.
How to Save on Chimney Cleaning
You don’t have to overpay to get a clean, safe flue. A few practical moves keep the bill in the lower part of the range.
- Book the sweep before the fall rush. Late summer is the slow season in San Antonio. Scheduling in August or early September is easier and sometimes less expensive than waiting until the first cold snap.
- Bundle the sweep and inspection. A sweep and a Level 1 inspection together usually cost less than booking them separately. We include a routine visual check with every sweep at no extra charge.
- Only burn seasoned wood. Dry, split wood burns hotter and leaves less creosote, which means future sweeps are faster and cheaper. This is the single biggest factor you control.
- Don’t skip annual cleanings. A yearly sweep is far less expensive than a chimney fire or a full reline. Letting creosote build for years is how a $200 sweep turns into a $2,000 repair.
- Fix small problems early. A cracked crown or a missing cap is a small repair today and a big one after the next rainy season. Catching it early keeps the money in your pocket.
- Ask for the written price before anyone starts. Any honest company gives you the number up front. If a quote arrives only after the work is done, that’s your signal to walk away.
We offer free estimates, and every customer gets a written price before any work begins. Call (336) 863-3889 and we’ll give you a real number, not a vague range. A live person answers, day or night, so you’re never stuck on voicemail when something smells like smoke at 11 p.m.
FAQs – Chimney Cleaning Cost
How much does a chimney sweep cost in San Antonio?
A standard chimney sweep in San Antonio costs $150 to $300 in 2026 for a single flue. Two-flue jobs typically run $275 to $475. The final number depends on creosote buildup, chimney height, and whether the flue needs a Level 2 inspection, and you’ll get it in writing before any work starts. Call (336) 863-3889 for an exact quote; estimates are free.
How often should I get my chimney cleaned?
Once a year is the standard recommendation, and San Antonio homeowners who burn wood regularly should stick to it. If you burn more than a cord of wood a season, or you notice a strong smoky odor, you may need it twice. Yearly sweeps catch creosote before it reaches the dangerous glazed stage. Call (336) 863-3889 to schedule your annual cleaning, and we’ll tell you plainly if you can wait.
Is it cheaper to repair or replace a chimney?
Repair is almost always the cheaper path unless the chimney is structurally failing, and repairs in San Antonio typically run $150 to $1,500 versus $1,800 to $4,500 for a full liner install. HeatShield resurfacing and tuckpointing extend the life of a chimney at a fraction of replacement cost. We quote both options in writing so you can decide with real numbers. Call (336) 863-3889 for a free estimate.
Can you clean my chimney the same day?
Often, yes, especially for standard sweeps scheduled earlier in the day. Same-day slots depend on the season, and fall fills up first. When you call, we’ll tell you honestly whether we can reach you today. Reach us any hour at (336) 863-3889, and a live person will book your visit.
What does your 365-Day Done Right Promise cover?
Every repair we make carries a written guarantee for a full year. If the repair fails within that coverage period, the second visit is free. That means if a damper we replaced stops sealing, or a repair we made doesn’t hold, we come back and make it right at no charge. The guarantee is included on every job, never an upsell. Call (336) 863-3889 with any question about what’s covered.
A Note on Why We Price This Way
Most chimney companies in San Antonio compete on the advertised number, then make up the difference with add-ons discovered mid-job. Ruben Castellano built Alcott Chimney Sweep the opposite way. The price you hear on the phone is the price in writing, and the technician who shows up is the one whose name and photo reached you first. Every person we send is background-checked and identity-verified under the Threshold Standard, wears a uniform, and shows a photo ID badge at the door. No exceptions, no substitutes.
We install DuraFlex liner systems, HeatShield resurfacing, and parts from Gelco, Olympia Chimney, Famco, and Copperfield because those are the brands chimney professionals specify. Box-store substitutes cost less up front and fail sooner, which is a bad trade on a component that keeps fire and carbon monoxide out of your living room.
Call (336) 863-3889 for a free estimate. We answer the phone live, 24 hours a day, and we’ll give you a real dollar range for your San Antonio chimney before we ever touch it.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving San Antonio since 2002.
Pricing reflects the San Antonio market as of 2026. Alcott Chimney Sweep offers free estimates – call (336) 863-3889.
What Our Customers Say
"Water was leaking around the flashing. They resealed it and installed a new crown coating. Dry through two heavy rains since."
- Douglas P."Fast and tidy. Fireplace draws properly again."
- Mina K."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.