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.
Gelco Chimney Cleaning in Georgetown, TX | Ashby Chimney Austin
A Georgetown Chimney Sweep for your Gelco system typically runs between $189 and $329, depending on flue condition and liner type. We’re Ashby Chimney Austin, an independent Gelco service provider, and we’ve been working on these systems across Georgetown long enough to know the real difference between a routine cleaning and the kind of careful work Georgetown’s older limestone chimneys demand. If you’ve got a Gelco fireplace that’s due for service, call us at (254) 274-4486. We’ll tell you the price before we pick up a brush.
Why Georgetown Residents Choose Us for Gelco Service
We’ve spent over a decade walking onto Georgetown properties and opening up Gelco fireplaces part by part. Most chimney companies can sweep a flue. Few can look at a Gelco Thermalite in a 1960s brick veneer ranch near San Gabriel Park and tell you whether that hairline crack at the joint is cosmetic or the first sign of a problem. We can. Nathan Corliss, our owner, learned the trade through the building trades program at Los Angeles Trade-Technical College and has been in Central Texas long enough to know how Georgetown’s clay soils and sporadic chimney use work together against a prefabricated liner. We service everything from Gelco sales & service models still under warranty to discontinued systems that need aftermarket parts. When we show up, we name the price, put the guarantee in writing, and leave the fireplace cleaner than we found it.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Georgetown
- Hardened creosote glaze inside Gelco metal liners. Georgetown summers are long and hot, and when a fireplace sits unused from April through October, creosote left from sporadic winter fires bakes into a glassy crust. Standard wire brushing won’t touch it. We use chemical catalysts and mechanical abrasion to break it down without scoring the liner. This is the most common issue we see in Georgetown’s 1980s ranch homes with Gelco metal flues.
- Hairline cracks at flue tile joints in Gelco Thermalite systems. Central Texas clay soils shift, and Georgetown’s freeze-thaw cycles in January and February add stress to flue tile joints. We’ve opened plenty of Gelco Thermalite chimneys in this city with micro-cracks at the second or third joint down. Left alone, those cracks let heat and combustion gases reach the masonry surround. Caught early, they’re manageable.
- Gelco Sure-Seal cap failures on brick veneer chimneys. The stainless cap on a Gelco system expands and contracts at a different rate than the brick crown it sits on. After enough Georgetown summers, the seal degrades. Water sneaks in, and on older Georgetown homes with limestone crowns, that’s a recipe for spalling. We replace caps with proper stainless Sure-Seal units and re-seal the crown when we’re there.
- Mortar debris between liner and masonry in historic stone chimneys. In Georgetown’s Old Town district, many Gelco liner kits were retrofitted into Victorian limestone chimneys that were never built for modern prefabricated liners. Over time, mortar breaks down and falls into the gap. That debris creates hot spots against the liner wall. We remove it during cleaning and flag it during inspections.
- Thermal shock cracks from sudden cold snaps. Georgetown doesn’t get a long winter, but it gets cold snaps. A chimney that’s been idle for months gets fired up on the first 40-degree night, and unlined masonry or thin Gelco liner joints crack under the sudden temperature shift. We see this every year, mostly in older homes without proper liners.
Gelco Service in Georgetown: What Local Conditions Mean for Your Equipment
Here’s what makes Georgetown genuinely different from Austin or Round Rock when it comes to Gelco systems. The Old Town district around the 1911 Williamson County Courthouse has a high concentration of chimneys built from the same honey-colored Georgetown limestone that the courthouse itself was cut from. That stone is soft. Run an aggressive rotary brush down one of those historic stacks and you’ll spall the surface, leaving pitted stone that holds water and deteriorates faster in the Texas heat. For Gelco systems integrated into these older stone chimneys, we use gentler, more frequent cleaning cycles with soft polymer brushes rather than hard wire wheels. It takes a little more time and a little more care, but it keeps the stone intact and the liner’s warranty valid. Georgetown’s older homes simply weren’t built for the kind of aggressive cleaning methods that fine, dense brick can handle. This is a local reality we’ve learned by doing the work, not from a manual.
Gelco Models & Products We Service in Georgetown
We service the full Gelco lineup that’s common in Georgetown homes: the Thermalite Series in mid-century ranches, the DuraFlex Series in newer construction, the Sure-Seal Cap System on brick veneer and limestone crowns, and the FlexMaster Liner Kit in retrofits. When a Gelco cap or liner needs exact OEM fitment to preserve a warranty, we source genuine Gelco components. When a older Gelco model has discontinued parts, we turn to proven alternatives like DuraFlex liners, which we’ve installed for years with solid results. For systems with extensive corrosion or structural deterioration, we’ll say so plainly and walk you through replacement options rather than patching a failing joint for the third time. We’d rather you spend once on the right fix than keep paying us to chase the same problem.
See the difference
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AfterGelco Service Pricing in Georgetown
Most Gelco chimney cleanings in Georgetown run between $189 and $329. Light creosote and a straightforward flue: $189 to $219. Heavy creosote glaze requiring chemical treatment: $249 to $329, depending on flue length and accessibility. Adding our Chimney Inspection in Georgetown when you’ve had water intrusion or suspect liner damage: typically $399 to $599 with camera documentation. Every job gets a written price before work starts, and every repair gets a written guarantee. If a covered repair fails inside the guarantee period, we come back at no charge. That’s the 365-Day Done Right Promise, and it’s part of the Kingswell Guarantee. Call (254) 274-4486 for an exact quote. Estimates are free, and you’ll know the number before we touch anything.
Serving Georgetown, TX - Our Local Coverage Area
We’re based in the Georgetown 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 – Gelco Chimney Cleaning in Georgetown
Yes. Georgetown’s historic limestone chimneys are softer than brick, so we use soft polymer brushes and gentler cycles to avoid spalling the stone face. The Gelco liner inside gets the same thorough cleaning, just with more attention to the masonry around it.
Often yes. Georgetown’s expansive clay soils shift with moisture, and that movement transfers stress into chimney structure, especially at flue tile joints. A hairline crack at the top joint is usually the first place that stress shows. We’d inspect it with a camera to determine whether it’s structural or surface-level before recommending any work. Call (254) 274-4486 and we’ll take a look.
You can replace just the cap. We replace Gelco Sure-Seal caps on their own all the time, with a proper stainless unit and a fresh seal. If the flue below is in good shape, that’s all you need. If the flue has cracks or offset joints, we’ll show you the camera footage and let you decide from there.
Because Georgetown’s humid, hot summers bake creosote residue into a hard glaze, especially inside metal liners that heat and cool quickly. A homeowner brush can’t touch glazed creosote. It takes a chemical catalyst or mechanical abrasion, which is what we use. If you’ve cleaned it yourself and it keeps coming back shiny and hard, give us a call at (254) 274-4486.
For most Georgetown homes, yes, at least once. Infrequent use doesn’t mean less risk. It often means more, because long idle periods let creosote harden, mortar break down, and water sit unnoticed. A Level 2 inspection with a camera shows us the liner, the joints, and the cap seal in a way a visual check can’t. If you’d rather not guess, call (254) 274-4486 and we’ll explain what’s involved.
Service Areas Near Georgetown
We serve Georgetown and the surrounding communities, including Georgetown service area coverage throughout Williamson County, plus Gelco service in Austin, Gelco service in Round Rock, Kyle, Taylor, and Wells Branch. If you’re in one of these towns with a Gelco fireplace, the same pricing, guarantee, and soft-brush care applies.
Book Your Gelco Service in Georgetown Today
Say the price first. Explain the work. Put the promise in writing. That’s how we run every Gelco service in Georgetown, and it’s why homeowners in Old Town, San Gabriel, and the ranch neighborhoods keep our number handy. Call (254) 274-4486 for a free estimate, and we’ll set a real arrival window with a real person on the line.
Written by Nathan Corliss, Owner at Ashby Chimney Austin, serving Georgetown’s chimneys, fireplaces, and flues since 2002.