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 Houston
A chimney sweep in Houston typically runs $169 to $289 for a standard masonry fireplace with a clay tile flue, and gas fireplace cleaning runs $129 to $199. Most jobs take 60 to 90 minutes, and we book in real arrival windows, not four-hour gaps. Houston’s humidity does more damage to chimneys than fire does, and what looks like a simple cleaning often reveals moisture intrusion that needs camera proof before we recommend anything. Nathan Corliss leads our Houston team, and our phones are answered by a live person 24/7 at (903) 961-6496. If it’s not done right, the Chimney Sweep team comes back and makes it right, in writing.
Why Ashby Chimney Houston Is Houston’s Preferred Chimney Sweep Company
Houston homeowners have every reason to be skeptical of chimney companies. The industry is full of no-shows, price-switching, and liner replacements sold on fear. We built Chimney Sweep in Houston around a different approach, which we call the Kingswell Way: say the price, show up in the window, leave it cleaner, put the guarantee in writing, come back if it fails. Every visit starts with a written price before any work begins. The number on the invoice is the number we quoted at the door.
Ashby has operated since 2002, and our Houston location is independently owned and operated under the Kingswell Guarantee. That means a written guarantee on every repair, and a free second visit if a covered repair fails inside the guarantee period. We call it the 365-Day Done Right Promise, and it’s not an upsell add-on. It’s included because we would rather stand behind a repair than re-explain why we won’t. Our technicians are background-checked and uniformed, so when someone knocks on your door in Houston, you know exactly who you’re letting in.
Scheduling and dispatch are coordinated from our Houston office, and our crews serve Houston locally. We stock parts for common Houston chimney systems – DuraFlex liners, Famco caps, Gelco crown sealer – so we don’t have to order and reschedule when a repair turns out to be bigger than expected. When a Houston homeowner calls on a Saturday morning because a cold snap just hit and the fireplace smells like damp smoke, we answer the phone and get them on the schedule.
Styles & brands we work with
Gas Fireplace Cleaning in Houston
Gas Fireplace Cleaning in Houston is about more than wiping glass. Humidity combines with gas combustion byproducts to create a white, chalky film on the ceramic glass that standard glass cleaner won’t remove. We disassemble the log set, clean the burner ports, remove the mineral deposits from the glass with a non-abrasive cleaner, and vacuum the firebox. Most gas fireplace cleanings in Houston run $129 to $199, depending on whether the unit is direct-vent or vent-free and how much mineral buildup has accumulated.
What Houston’s Humidity Does to Gas Units
Houston’s air holds moisture all year, and that moisture settles inside the firebox and on the burner. Over time, it corrodes the burner ports and causes uneven flame patterns, yellow tipping, and that smell some people mistake for a gas leak. We see this constantly in homes throughout Houston, and the fix is usually a thorough cleaning and burner adjustment, not a full replacement.
When to Service a Gas Fireplace in Houston
Even if you only use the fireplace a handful of times each winter, an annual cleaning makes sense in Houston. Spiders build nests in the burner tubes during the months the unit sits idle, and humidity accelerates rust on the pilot assembly. A homeowner in a 1980s-era home in Bellaire might notice the pilot won’t stay lit. Nine times out of ten, that’s a dirty thermocouple or clogged pilot orifice, and it’s a $129 to $199 fix, not a replacement.
Chimney Maintenance in Houston
Chimney Maintenance in Houston should focus on moisture, not just soot. The brick veneer chimneys on post-1960 single-family homes throughout Houston hold up well against fire, but the region’s humid air and heavy rains work on the mortar, the cap, the flashing, and the flue liner year-round. A maintenance visit includes a sweep when needed, a visual check of the crown and flashing, and a Level 1 inspection of the flue interior, all for a written price before we start.
Masonry and Crown Upkeep in Houston
Spalling brick is the most common masonry problem we see across Houston’s neighborhoods. Moisture soaks into the brick during Houston’s wet months, and when a rare cold snap drops temperatures below freezing, the water inside the brick expands and pops the face off. Regular crown sealing with a product like Gelco slows this down dramatically. Waiting until bricks are visibly flaking usually means rebuilding sections of the chimney instead of sealing them.
Flashing and Cap Checks After Houston Storms
Houston’s severe weather, including hurricane-adjacent rain events, tests chimney flashing harder than anything else. We inspect the flashing where the chimney meets the roofline, because that joint is the single most common source of hidden leaks in Houston homes. A rusted, loose, or missing chimney cap gets replaced with a Famco cap sized to the flue. If we find a cap in good condition but corroded flashing around it, we say so plainly, and we don’t sell a cap you don’t need.
Trusted Brands We Service in Houston
We repair and install systems from the brands chimney professionals actually use: DuraFlex for flexible steel liners, HeatShield for masonry flue resurfacing, Gelco for crown sealants, and Olympia Chimney for caps and terminations. Because we keep common parts on hand at our Houston office, a liner repair or cap replacement often gets completed the same day we diagnose it, without a second visit and a second appointment window. These are the same materials we use on our own work, and we put every brand name on your written quote so you can verify what you’re paying for.
Common Chimney Sweep Problems We See in Houston Homes
- Spalling brick and flaking mortar: Houston’s humidity keeps masonry damp, and the few freezing nights each winter cause the face of the brick to pop off. By the time homeowners notice brick chips in the yard, the chimney usually needs more than a sweep.
- Rusted metal flue components: Original metal liners in 1990s-era homes, common in areas like Katy and the Spring area, corrode from years of Houston humidity. Rust-colored stains on the exterior brick are often the first visible sign of a liner that has rusted through.
- Mold and musty odors mistaken for creosote: A damp, musty smell from the fireplace is frequently mold growing in the smoke chamber or on deteriorating mortar, not creosote. Sweeping alone won’t fix it, and that’s why we always look with a camera before recommending anything.
- Storm-damaged flashing and soaked fireboxes: Houston’s heavy rain events push water through failed flashing and into the firebox. Homeowners call us after noticing water stains on the ceiling near the chimney or a puddle in the firebox after a hard rain.
See the difference
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AfterPricing for Chimney Sweep in Houston, TX
A standard chimney sweep in Houston runs $169 to $289 for a masonry fireplace with a clay tile flue. Gas fireplace cleaning runs $129 to $199. A Level 1 inspection is included with every sweep at no extra charge; a Level 2 camera inspection runs $249 to $399, and we recommend it after a storm, before buying a home, or when there are signs of damage. The written price you get before work starts is the price you pay. If the actual work ends up being simpler than what we quoted, we lower the invoice. That doesn’t happen often, but it does happen, and it’s the right way to bill. Call (903) 961-6496 for a free estimate, and we’ll give you plain numbers over the phone before anyone comes out.
One thing Houston homeowners tell us all the time: they’ve been burned by a chimney company that quoted one price and showed up with a different one. We don’t do that. You’ll see the price in writing before any work begins, and nothing gets recommended unless we can show it to you on the camera screen.
We Also Serve Cities Near Houston
Our Houston crews cover the surrounding metro area, including Pasadena, Highlands, Spring, and Stafford. If you’re in one of those communities, we schedule in the same arrival windows we use in Houston, and the price is the same written price before work starts.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 Houston
Those rust-colored stains are almost always the first visible sign of a corroded metal flue liner, not soot from the firebox. Houston’s humidity causes steel and aluminum liners to rust through over time, and the rust bleeds into the surrounding brick veneer. We pulled a Level 2 camera inspection on a 1990s brick veneer chimney in Katy after the homeowner noticed exactly those stains. The camera showed the original metal flue liner had corroded through from years of humidity, and moisture was wicking into the smoke chamber. We replaced the liner with a DuraFlex system and rebuilt the chimney crown to stop the leak. If you see those stains, call us, and we’ll show you the inside of your flue on camera before recommending anything.
Once a year is still the right answer, even if you never light a fire. In Houston, the bigger risk to an idle chimney is moisture and pests. A chimney that isn’t used still gets rained on, still absorbs humidity, and still develops cracked crowns and flashing leaks. Our Level 1 inspection catches spalling mortar and rusted components before they become structural problems. Call (903) 961-6496 and we’ll get it on the calendar.
If you burn wood even a few times a year, yes. Creosote builds up faster than you’d expect in Houston because our high humidity makes the wood smoke condense and cling to the flue walls instead of venting cleanly. A chimney that gets used a dozen times a season can still accumulate a glaze of creosote that a subsequent chimney fire could ignite. A sweep before the cold snaps is cheap insurance, and it gives us a chance to check the crown and flashing before the rainy season really starts.
You can slow it down significantly with regular crown sealing, flashing checks, and a functioning chimney cap. We use Gelco crown sealant to keep water from soaking into the chimney’s masonry crown, which is the single most effective preventive step for Houston homes. There is also a HeatShield treatment available for clay flue tiles that are starting to spall or crack on the inside. You can’t stop Houston’s humidity entirely, but you can keep it out of the parts of the chimney that fail when wet.
Third-degree creosote looks like a hard, shiny, tar-like glaze coating the flue walls, and you can’t remove it with standard sweeping brushes. It forms when chimney temperatures run high and the creosote bakes into a hard layer. If your fires roar but the chimney still smells like asphalt, or you see a glossy black buildup in the flue with a flashlight, that’s likely what’s happening. Call (903) 961-6496 and we’ll put a camera in the flue to confirm it, then give you a written price for the removal method that actually works on it.
Call Ashby Chimney Houston for a Straight Answer
We show our work before we start. You’ll get a written price, a real arrival window, and a guarantee on every repair, backed by the Kingswell Guarantee and the 365-Day Done Right Promise. Ashby carries ash right in the name, fitting for the people whose job is to clean it out. Nathan Corliss and the Houston team answer the phone around the clock. Call (903) 961-6496 for a free estimate, and we’ll tell you what’s wrong, what it costs, and whether it can wait.
Written by Nathan Corliss, Owner at Ashby Chimney Houston, serving Houston and the surrounding metro since 2002.