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.
Fast, Reliable Chimney Sweep Across Castle Hills
A standard chimney sweep in Castle Hills typically runs $249 to $349 for the first flue, with each additional flue in the same home adding $89 to $129. Most sweeps take 60 to 90 minutes from setup to final vacuum, and we book Castle Hills jobs within 3 to 5 business days during the fall rush. If you live off NW Military Highway near the older ranch homes or in one of the newer custom builds along Loop 1604, you’re dealing with masonry that’s either approaching 60 years old or was built to very different standards than what we see in newer San Antonio subdivisions.
We answer the phone with a live person when you call (903) 515-5079. Always. This matters when you’ve got water staining the ceiling near your fireplace after a hard rain and you don’t want to leave a voicemail and hope someone calls back. We serve all of Castle Hills, from the mid-century homes along Larkspur to the larger lots off Bridle Path, and we’ll give you a written price before any work begins.
Why Alcott Chimney San Antonio Is Castle Hills’s Preferred Chimney Sweep Company
Ruben Castellano has run Alcott Chimney Sweep since 2002, and his crews have swept hundreds of Castle Hills chimneys in that stretch, including the one on Bridle Path where a homeowner assumed a roof leak was causing her ceiling stains when the actual cause was a cracked chimney crown and missing cricket flashing behind the stack. The reason Castle Hills residents keep calling us back isn’t pricing gimmicks. It’s that we explain what we found, show you the camera footage, and only recommend work that’s actually needed.
Our technicians are background-checked and identity-verified under what we call the Threshold Standard, the vetting framework used across our Threshold Group home-service family. Before a technician arrives at a home near Castle Hills Forest or anywhere else in the city, you get their name and photo by text or email. They’ll arrive in uniform and show you a photo ID badge at the door. No exceptions. When you’re home alone or have kids with you, you should know exactly who’s walking up your driveway before they get there.
We don’t sell 99-dollar sweeps and then invent liner damage to make up the difference. The company’s 365-Day Done Right Promise backs every repair with a written guarantee, and if a repair fails within that year, the second visit is free. That’s the deal in Castle Hills, same as everywhere we work.
Styles & brands we work with
Chimney Sweep Certified in Castle Hills
Chimney Sweep Certified work in Castle Hills means a full mechanical sweep of the flue and smoke chamber, not a quick brush-and-run. Our sweep includes a rotary or rod-and-brush cleaning sized to your flue, a HEPA-filtered vacuum setup that keeps soot out of the living room, and a visual check of the firebox, damper, and accessible flue sections. In a city like Castle Hills, where dozens of original clay tile liners are spalling quietly behind the brick, the sweep itself often turns up the first signs of trouble. A standard certified sweep in Castle Hills runs $249 to $349 per flue.
Creosote and Soot Removal
Creosote is the tar-like residue that condenses on flue walls when wood smoke cools too quickly, and it’s the material responsible for most chimney fires. In Castle Hills’s humid subtropical climate, creosote tends to hold more moisture, which makes it stickier and harder to remove with a plain wire brush alone. Our sweeps use mechanical scrapers and can apply a creosote conditioner when buildup is heavy, then sweep the residue out. The job takes the same 60 to 90 minutes and costs the same $249 to $349 unless we’re addressing stage-three glaze, which requires a separate treatment.
Annual Sweep for Wood-Burning Fireplaces
If you burn fires more than twice a month during cooler weather, an annual sweep is the right interval. Castle Hills sits in a climate where winter freezes are sporadic but real, and when homeowners fire up a wood burner for the first cold snap of the season, that’s when creosote that built up in March becomes a hazard. We recommend booking your annual sweep in September or October, before the first real fire of the fall. It’s the same flat range, $249 to $349, and we’ll confirm the price in writing before we set up the vacuum.
Gas Fireplace Cleaning in Castle Hills
Gas Fireplace Cleaning in Castle Hills costs $189 to $289 and includes removing the glass, cleaning the firebox and burner, checking the pilot assembly and thermocouple, and brushing or blowing out the venting. Gas fireplaces look low-maintenance, but Castle Hills homes with gas logs that have burned for years often develop a fine white film on the inside of the glass and a soot layer on the ceramic logs that makes the flame yellow and weak. If the flame looks lazy and orange instead of a crisp blue, the burner ports are partially clogged and the unit is running inefficiently.
Gas Fireplace Repair
When a gas fireplace in a Castle Hills home won’t light or the flame is weak and flickering, the usual culprit is a failing thermocouple, a blocked pilot orifice, or a fan motor that’s given out. We handle Gas Fireplace Repair in Castle Hills with same-day service for most common issues. We stock replacement parts from Olympia Chimney and Famco for most common gas fireplace configurations, which means most repairs in the Castle Hills area are finished the same day rather than waiting on a backordered part. We’ll show you the failed part before we replace it, and the repair is covered by our written 365-day guarantee.
Trusted Brands We Service in Castle Hills
We install and service the brands chimney professionals specify, not whatever’s on sale at a box store. When we reline a flue, we use DuraFlex liner systems or HeatShield resurfacing, depending on what your chimney’s condition actually requires. For chimney caps, dampers, and terminations, we work with Copperfield and Famco products. Because we stock replacement components for the common makes and models in Castle Hills homes, we can often complete a damper replacement or cap install in one visit rather than making you wait for a shipment from a distributor in Dallas.
Common Chimney Sweep Problems We See in Castle Hills Homes
- Spalling clay flue liners in 1960s-1980s custom homes. The original terra-cotta liners in many Castle Hills chimneys are flaking apart after decades of humid summers and the occasional hard freeze. We find these cracks on camera even when the fireplace drafts fine, which is why a Level 2 inspection is the norm here, not an upsell.
- Water stains on ceilings near the fireplace. In Castle Hills, a heavy thunderstorm often reveals a cracked chimney crown or missing cricket flashing that has been quietly letting water in for years. Our techs check the chimney side of the problem before you pay a roofer to look at it.
- Gas appliances venting into unlined or under-sized flues. Some of the older Castle Hills homes had gas water heaters or furnaces vented into masonry stacks that were built for wood fires, not modern appliance exhaust. Acidic condensation from gas exhaust eats the interior mortar, and the fix is usually a correctly sized liner.
- First-degree creosote and soot accumulation from improper burning habits. Homeowners burning unseasoned wood or running fires with the damper mostly closed produce heavier creosote buildup. The good news is first-degree creosote comes out with a standard sweep. The bad news is ignoring it turns stage one into stage three, and then you’re talking resurfacing instead of sweeping.
See the difference
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After
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AfterPricing for Chimney Sweep in Castle Hills, TX
A certified chimney sweep in Castle Hills runs $249 to $349 for the first flue, with additional flues in the same home adding $89 to $129 each. Gas fireplace cleaning runs $189 to $289. A Level 1 inspection is included with every sweep. A Level 2 camera inspection, which we recommend for any Castle Hills home with an original clay flue liner or any fireplace that’s been used regularly for more than five years without a camera check, adds $175 to $225. What changes the price on a sweep is stage-three creosote, which requires chemical treatment and extra labor, and excessive animal nesting or debris in the flue. You’ll get an exact written price before we start, and that’s the price you pay. Call (903) 515-5079 for a free estimate.
| Service | Castle Hills Price Range |
|---|---|
| Certified chimney sweep (first flue) | $249 – $349 |
| Each additional flue | $89 – $129 |
| Level 2 camera inspection | $175 – $225 |
| Gas fireplace cleaning | $189 – $289 |
| Dryer vent or gas appliance flue sweep | $139 – $199 |
We Also Serve Cities Near Castle Hills
Beyond Chimney Sweep in Castle Hills, our crews cover San Antonio, Schertz, Cibolo, and Boerne. If you’re in one of those communities or anywhere between them, the same Threshold Verified technicians, same written pricing, and same 365-Day Done Right Promise apply. We also offer our full Chimney Sweep service range across the entire metro.
Serving Castle Hills, TX - Our Local Coverage Area
We’re based in the Castle Hills 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 About Chimney Sweep in Castle Hills
Yes, and this is the single most important piece of advice we give Castle Hills homeowners. A fireplace can draft fine while the clay liner behind the brick is cracked and spalling, and you won’t know until you either get a chimney fire or see water coming through the ceiling. The original terra-cotta liners in 1960s-1980s custom Castle Hills homes are at the end of their service life, and our techs regularly find hidden cracks during Level 2 camera inspections on chimneys that showed no outward problems. The inspection costs $175 to $225, and we’ll show you the footage before we recommend any repair. Call (903) 515-5079 to schedule one.
In Castle Hills, it’s often both, but we’d check the chimney side first. Many older custom homes here were built with chimneys that lack proper cricket flashing behind the stack, and the crowns are decades old and cracking from thermal expansion. When rain drives against the back of the chimney, water sneaks in through the crown cracks and runs down the flue or between the masonry and the framing, staining the ceiling near the firebox. We’ve diagnosed this exact issue on a 1978 ranch on Bridle Path, where a homeowner had already paid a roofer before the real cause was found. Our techs can camera the flue and inspect the crown and flashing in one visit, usually $175 to $225 for the Level 2 look plus any crown sealant work we quote in writing.
No, and that black shiny glaze is stage-three creosote, which forms when gas logs run with incomplete combustion and the byproducts condense on a cool flue wall. A standard sweep won’t remove it. Removing stage-three creosote requires chemical treatment with a product applied to the glaze, sometimes multiple treatments, before mechanical sweeping can get the flue clean. In Castle Hills homes with unlined or thinly parged flues, stage-three glaze is also a warning that the stack wasn’t designed for gas venting in the first place. We’ll camera the flue, show you the glaze, and give you a written price for the treatment plus any liner work that’s actually necessary. Call (903) 515-5079 and we’ll walk you through it.
A Level 1 inspection is a visual check of the accessible portions of the chimney, firebox, damper, and exterior stack, and it’s included free with every sweep we do. A Level 2 inspection adds a camera scan of the entire flue, from the firebox up through the crown, plus a closer look at the attic and crawlspace portions if accessible. In Castle Hills, where original clay liners in 1960s-1980s homes are spalling and hidden cracks are common, we recommend a Level 2 for any home that hasn’t had one in five years, any home that’s changed fuels or appliances, or any home that’s shown water intrusion evidence. The Level 2 runs $175 to $225, and you’ll see the camera footage yourself.
You don’t, not until someone puts a camera in the flue, and anyone who tells you otherwise from the driveway is guessing. If the camera shows only creosote and soot with no cracks in the liner or damage to the mortar joints, a sweep is all you need. If the camera shows spalling clay, separated liner sections, or a flue that’s too large for the appliance venting into it, relining is the right call, and we’ll show you the footage that proves it. For many Castle Hills chimneys, a HeatShield resurfacing or a properly sized DuraFlex liner solves the problem for far less than a full rebuild. You never pay for a reline without seeing the condition for yourself.
Call Alcott Chimney San Antonio for Castle Hills Chimney Sweep
If your chimney hasn’t been inspected in the last two years, or if you’ve never had a camera in the flue of a home built before 1990, it’s time. We’ll send a technician whose name and photo you’ll have before they arrive, give you a written price before any work starts, and back every repair with a full-year written guarantee. Call (903) 515-5079 today for a free estimate, and we’ll get you on the schedule before the season fills up.
Written by Ruben Castellano, Owner at Alcott Chimney San Antonio, serving Castle Hills since 2002.