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 Katy
Most chimney sweeps in Katy run between $189 and $329 for a standard prefabricated fireplace cleaning and inspection. If you live in Cinco Ranch, Seven Meadows, Grayson Lakes, or anywhere else in the 77494 or 77450 zip codes, our crews know exactly what they’re walking into: a post-1990 home where the fireplace looks like stone but vents through a factory-built metal flue. That distinction matters more in Katy than almost anywhere else we work, and it’s why the right brushes, the right parts, and a tech who checks the chase cover make the difference between a clean fireplace and a rusted-out chimney system you never saw coming. We’re Ashby Chimney Houston, part of the Kingswell network of independently owned chimney companies, and we’ve been doing this since 2002. Call (903) 961-6496 for a written price before any work starts.
Why Ashby Chimney Houston Is Katy’s Preferred Chimney Sweep Company
Katy homeowners don’t have old chimneys. They have newer ones, mostly prefabricated, and they’ve learned the hard way that a company treating them like masonry flues causes more damage than the cleaning prevents. Our Chimney Sweep technicians arrive in uniform, background-checked, and carrying poly brushes specifically for factory-built metal flues because that’s what the houses in Cinco Ranch, Firethorne, and Cross Creek Ranch actually have. Nathan Corliss runs the operation for Ashby, and he trained the crew to start every Katy job the same way: confirm what you have before touching it. We don’t run wire brushes down a metal liner. We don’t skip the chase cover. And we don’t quote you a number at the door that changes by the time the work is done. The written price is the price, backed by the 365-Day Done Right Promise and the Kingswell Guarantee on every repair. Schedule with us and you’ll get a real arrival window, not a four-hour shrug. If a covered repair fails inside the guarantee period, we return to fix it at no charge. That’s how we’ve built our name across Katy, and it’s why homeowners from Grand Lakes to Williamsburg Colony keep our number on their phone.
Styles & brands we work with
Fireplace Cleaning in Katy
Fireplace cleaning in Katy is rarely the job people assume. In a Cinco Ranch or Cross Creek Ranch home built after 1995, the “stone” fireplace in the corner of the family room is usually a factory-built zero-clearance unit venting through double-walled metal pipe up a framed chase with a cap on top. We clean those metal flues with poly brushes that won’t scratch the liner, and we clean glass doors, remove soot from the firebox, and clear the damper assembly so it opens and closes the way it should. Most Katy fireplace cleanings run $189 to $279 for a standard prefab unit without a chimney. If the fireplace is masonry and you have an actual clay-lined flue, pricing shifts to $229 to $329 because the cleaning methods and equipment differ. Either way, you get a written price before we touch anything, and a camera inspection at the end so you can see the flue surface yourself.
Prefab Fireplace Cleaning
This is the core of our work in Katy. A prefab fireplace cleaning means we remove the log set and grate, vacuum out the firebox, clean the glass with a non-abrasive ceramic cleaner, brush the flue with poly rods, and inspect the chase cover from the roofline. If we find rust or corrosion, we show you photos before recommending any replacement.
Masonry Fireplace Cleaning
A masonry fireplace in Katy, usually in an older home along Avenue D or in a neighborhood like Nottingham Country, gets a different treatment. We get up on the roof, check the crown and cap, brush the clay liner, and clean out the smoke chamber where creosote collects fastest. Expect $229 to $329 depending on flue height and creosote stage.
Chimney Services in Katy
Chimney services in Katy start with a Level 1 inspection on every sweep, because in this housing stock, the first thing that fails is the part you can’t see from your couch: the chase cover. Katy’s humid subtropical climate means frequent heavy rains followed by sun that bakes the metal. Just a few seasons of that, and a galvanized chase cover starts rusting through. When that happens, rain drips down through the chase, rusts the flue pipe, and eventually leaks into the firebox or the wall cavity behind it. A standard sweep with a Level 1 inspection runs $189 to $329. When we pitch for a Level 2, usually after a major storm, a freeze event, or before buying or selling a Katy home, that runs $349 to $499 and includes a full video scan of the flue interior. You see the footage. Nothing is recommended without evidence.
Level 1 and Level 2 Inspections
A Level 1 inspection is part of every sweep and checks the accessible areas of the fireplace, chimney, and chase. A Level 2 goes farther: video inspection, attic checks, roof flashing, clearances to combustibles, and the chimney’s condition after events like Hurricane Harvey or the 2021 freeze. If you’re selling a Katy home or just bought one, a Level 2 is what you want.
Chase Cover and Cap Replacement
We carry replacement chase covers and caps for Katy jobs because the turnaround matters to people with a leak. When a chase cover rusts through, we quote the replacement at the time of inspection, order the part from Olympia Chimney or Famco, and install it once it arrives. You don’t wait around for a second company or a second opinion.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Katy
We stock parts that actually fit the chimney systems in Katy homes: replacement chase covers from Olympia Chimney, caps from Famco, and flue components from DuraFlex when a liner replacement is genuinely required. If a homeowner needs HeatShield resurfacing or Gelco sealant work, we can handle that too, but we never lead with a liner pitch a camera can’t back up. The point is simple: when we open up the van in Seven Meadows or Grayson Lakes, the right part for a factory-built chimney is already there. That means no made-up delays and no “we’ll order it and get back to you” runaround.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Katy Homes
- Rusted chase covers from Gulf Coast humidity and downpours. Katy’s heavy rain seasons and summer heat cycles rust galvanized covers faster than people expect. By the time you see a drip in the firebox, the rust has been working for years.
- Wire-brush damage on prefabricated metal flues. We regularly follow behind companies that ran standard steel brushes down a factory-built flue, voiding the manufacturer’s warranty and leaving scratches that hold creosote. It’s preventable, and it never happens with our crew.
- Skipped damper and cap inspections on cheap sweeps. A “sweep” that takes 30 minutes and never goes on the roof misses the damper that won’t close, the cap that’s rusted off, and the creosote that’s building a tar glaze. In Cinco Ranch, that’s how second-degree creosote becomes third-degree without anyone noticing.
- Faux-stone veneers masking what’s underneath. The stone front on many Katy fireplaces is just a veneer. The real chimney is a metal chase behind it, and mortar repair on a prefab system traps moisture and accelerates rust. We know the difference on sight, and we check before we touch anything.
Pricing for Chimney Sweep in Katy, TX
We Also Serve Cities Near Katy
We run crews into Katy every week, and from there we also cover Richmond, Stafford, Rosenberg, and Missouri City. If you’re in any of those areas, or in the newer subdivisions between them, give us a call. The same written pricing, live-answered phone line, and guarantee applies across this whole part of the metro. Call (903) 961-6496 and talk to a real person, 24/7.
Serving Katy, TX - Our Local Coverage Area
We’re based in the Katy 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 Katy
Does my Katy home’s prefabricated fireplace need a chimney sweep if it looks clean from the outside?
Yes, and in fact a clean-looking firebox is exactly what gives Katy homeowners false confidence. The parts that fail on a prefab fireplace are the flue liner, the chase cover, and the damper, none of which you can see from the couch. A poly brush sweep and a Level 1 inspection catches first-degree creosote and rust before they become a $500 cap replacement or a $3,000 liner job. Call (903) 961-6496 to book a sweep; the written price covers the inspection too.
Can a standard chimney brush be used on the metal flue in my Cinco Ranch home?
No, and this is one of the most common mistakes we see. Factory-built metal chimneys require poly brushes or specific non-abrasive tools. Steel wire brushes scratch the liner, and manufacturers void their warranty when that happens. Our techs carry poly brushes as the default for Katy’s prefab housing stock, because that’s what the flue actually is.
Why is the chase cover on my Katy chimney rusting, and what does that mean for safety?
The chase cover is a metal cap over the wooden chase that encloses your prefab flue. Katy’s humid air, heavy storms, and summer sun rust galvanized steel covers faster than most homeowners would believe. Once rust-through happens, rain drips through the chase and into the firebox or wall cavity, which can rot framing, rust the flue, and create a path for carbon monoxide to seep into the house. Call (903) 961-6496 for an inspection; if a replacement is needed, we’ll show you the rusted cover while we’re on the roof.
How do I know if my fireplace is masonry or prefabricated if it looks like stone from the outside?
The quick answer is to check above the roofline. A masonry chimney is a brick or stone structure running the entire height of the home. A prefab fireplace has a metal chimney pipe and usually a metal chase cover visible at the roofline, sometimes behind a faux-stone or stucco chase. In Katy, almost every home built after 1990 has a prefab system. If you’re not sure, call me: (903) 961-6496, and we’ll identify it in seconds and tell you what it needs.
What is third-degree creosote, and why is it a concern in newer Katy homes?
Third-degree creosote is a hardened, tar-like glaze that forms on flue walls from condensed smoke and is the leading cause of chimney fires. It also affects newer Katy homes, especially when homeowners burn wet firewood in the humid Gulf Coast air, or when a cheap sweep misses creosote buildup in a metal flue. Once it’s glazed, a poly brush alone won’t remove it, and professional removal gets more expensive the longer it waits. Call (903) 961-6496 for a no-nonsense inspection if you haven’t had the flue checked in more than a year.
We’re the team that shows up on time, leaves the firebox cleaner than we found it, and hands you a written guarantee before we leave the driveway. If you’re in Katy and looking for a chimney sweep that treats your prefab fireplace like what it actually is, give us a call at (903) 961-6496. Free estimates, live answers, and the 365-Day Done Right Promise on every job.
Written by Nathan Corliss, Owner at Ashby Chimney Houston, serving Katy since 2002.