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 Jonestown, TX | Ashton Chimney
We provide independent Chimney Sweep – Jonestown Gelco cleaning and repair across Jonestown’s 78645 zip code. The one thing that makes our Gelco work different here: we understand how Lake Travis humidity, mountain cedar pollen, and freeze-thaw swings attack Gelco top-sealing dampers and cap assemblies on waterfront and near-water homes. Call (855) 507-9184 for a free estimate.

Ashton Chimney has been servicing Gelco chimney systems in the Lake Travis area for years. We diagnose their specific draft, damper, and flue-joint behavior honestly, and we never claim to be Gelco-authorized or warranty-endorsing. We’re an independent Gelco sales & service company that knows these systems because we see them in Jonestown’s humid, freeze-thaw-prone lake conditions week in and week out. That matters when a cap screen is packed with cedar pollen or a damper gasket has stiffened into a leak.
Why Jonestown Residents Choose Us for Gelco Service
Gelco dampers and caps are specific equipment. They behave a certain way when lake moisture gets into the seals, when wind-driven debris hits the top assembly, and when a limestone-faced stack cracks and lets water migrate down to the damper body. Our crews fix the cause rather than just sweeping the symptom.
We also know Jonestown itself, not just Gelco product lines. Nolan Pruett, our owner, grew up a few miles away in Cedar Park’s Buttercup Creek neighborhood and trained through the Building Trades program at Austin Community College’s Round Rock Campus. He’s spent nearly fifteen years working on fireplaces and flues across the Austin metro. When a Jonestown homeowner calls about a Gelco damper that won’t seal after a cold snap, he knows what the lake climate has been doing to that hardware. We use genuine Gelco OEM components for dampers, seals, and cap assemblies wherever they’re available, and quality aftermarket stainless hardware where OEM is discontinued. One company handles the sweep, the repair, and the sign-off.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Jonestown
Here are the five Gelco-specific failures we see most often in Jonestown homes:
- Top-sealing damper gaskets stiffened by lake humidity. Long humid summers and winter freeze-thaw cycles break down the rubber and silicone seals on Gelco top-sealing dampers. The gasket loses its flexibility, the damper won’t seal tight, and every cold night drafts cold air into the living room. We replace with OEM seals.
- Cap screens packed with mountain cedar pollen. By December, Jonestown’s cedar season is in full swing. Gelco stainless cap screens and spark screens on 78645 homes clog with pollen and lake-blown debris within weeks. Draft gets restricted, smoke backs up, and damp debris sits against the metal. This is the most common December service call we run in Jonestown.
- Rusted galvanized hardware on lake-facing stacks. Homes whose chimney stacks face Lake Travis get wind-driven moisture hitting the top assembly year-round. Galvanized cap and damper hardware corrodes faster there than anywhere else in the metro. We replace with stainless.
- Water-damaged Gelco dampers and inserts from cracked crowns. Jonestown’s limestone-faced exterior stacks go through repeated freeze-thaw cycles every winter. Crowns crack, water migrates down, and the Gelco damper or insert below starts sticking and rusting. We waterproof crowns and replace damaged components before the flue tile joints loosen further.
- Gelco fireplace inserts in remodeled cabins with venting that was never re-evaluated. Weekend and short-term-rental lake houses in Jonestown are constantly being remodeled. Many direct-vent and insert systems get installed or moved without a proper Level 2 inspection of the existing flue. We inspect the whole venting path, not just the visible firebox.
Gelco Service in Jonestown: What Local Conditions Mean for Your Equipment
In Jonestown’s 78645 lake homes, Gelco top-sealing dampers and caps often sit untouched for months between weekend and short-term-rental visits. The first thing we find is a lid scaled with cedar pollen and dried lake debris that has been holding moisture against the metal since the last cold snap. That’s not something you’d see in a drier inland Hill Country town, and it changes the inspection approach. We’re not just looking for creosote. We’re checking for corrosion that started when a damp, pollen-packed screen sat against a stainless cap through a Jonestown freeze-thaw week in January. On a lakeview home off the 78645 waterfront, we found a Lago Vista Gelco service-style issue: a top-sealing damper whose gasket had stiffened and a cap screen packed solid with mountain cedar pollen, so the fireplace had been drafting poorly all winter. We cleared and washed the screen, replaced the damper gasket with an OEM seal, and resealed the crown. The owner called back after the next cold night and said the smoke and draft problem was gone.
That’s the pattern in Jonestown: neglect plus lake moisture plus cedar pollen equals a damper that won’t seal and a cap that can’t breathe. The fix is straightforward once you know what you’re looking at.
Gelco Models & Products We Service in Jonestown
Our crews work on the full Gelco product range as it appears in Jonestown homes and nearby areas needing Gelco service in Briarcliff: top-sealing damper systems, multi-flue chimney caps, stainless steel chimney caps and spark screens, and fireplace inserts and direct-vent systems in remodeled lake cabins. We use genuine Gelco OEM components for dampers, seals, and cap assemblies wherever they’re available, and quality aftermarket screens, sealants, and stainless hardware where OEM is discontinued or back-ordered. We keep common Gelco damper gaskets, cap fasteners, and sealants stocked for fast Jonestown turnaround, so a routine service call doesn’t turn into a two-week parts wait. Cap replacement, damper repair, and chimney waterproofing are the three Gelco sub-services we most often run in this area. We name the products we install, DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield, so you know exactly what’s going into your home.
See the difference
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AfterGelco Service Pricing in Jonestown
Chimney sweep and inspection in Jonestown typically runs $200 to $350, depending on the system and how much buildup is present. Gelco damper gasket replacement adds roughly $150 to $450 including parts and labor. A full Gelco cap replacement is generally $400 to $850. Chimney crown waterproofing on an exterior limestone-faced stack runs $350 to $800. Liner resurfacing or replacement, if a Level 2 inspection turns up joint damage, is $3,500 to $8,000. The biggest cost driver on Jonestown lake homes is water damage: a cracked crown that wasn’t caught in time means a more expensive repair below. A free on-site or phone estimate always tells you the exact scope before any work is booked. Call (855) 507-9184 for a quote.
Serving Jonestown, TX — Our Local Coverage Area
We’re based in the Jonestown 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 Jonestown
The gasket has likely stiffened from lake humidity and freeze-thaw cycles, and moisture has gotten into the seal. It’ll stick until the gasket is replaced. We carry OEM Gelco seals and can usually fix it in one visit. Call (855) 507-9184 and we’ll check it.
That’s mountain cedar season in Jonestown. Cedar pollen blows off the Hill Country for six to eight weeks starting in December, and cap screens on 78645 homes collect it quickly. A clogged screen restricts draft and traps damp debris against the metal. We clean and wash screens as part of a sweep. Call (855) 507-9184 to schedule before cedar season peaks.
Yes, in Jonestown it’s common. Wind-driven lake moisture hits lake-facing stacks year-round, and galvanized hardware corrodes faster than stainless. We replace with stainless where corrosion has set in. If the rust is new, a sweep and seal check will tell you how far it’s gone. Call (855) 507-9184 for an inspection.
Yes. Remodeled lake cabins often have venting that was changed without a proper Level 2 inspection. The insert may be fine while the flue path behind it isn’t. We inspect the whole venting system, not just the visible appliance. Call (855) 507-9184 if your Jonestown cabin was remodeled recently and the fireplace behavior changed.
Freeze-thaw cycles. Jonestown’s winters bring hard freezes even in a mild year, and limestone holds moisture that expands when it freezes. Repeated cycles crack crowns and let water into the flue and Gelco components below. Waterproofing and crown resealing are the fix. Call (855) 507-9184 for an exact quote.
Service Areas Near Jonestown
We run Gelco service calls throughout the north Lake Travis area and the surrounding Hill Country corridor. Jonestown sits between some of the bigger communities we regularly service. That includes Cedar Park and Leander for full-time residents, Anderson Mill and Brushy Creek for homes just south, and the lake corridor over toward Hudson Bend. We’re familiar with Gelco installations in Gelco service in Hudson Bend and the Round Rock side of the metro. Find the full list on our Jonestown service area page, or check Gelco service in Round Rock for coverage details on that side of 183.
Book Your Gelco Service in Jonestown Today
Call (855) 507-9184 and we’ll put your Jonestown Gelco in Leander and Jonestown service on the schedule. We quote free estimates and keep common Gelco parts stocked locally so most calls are done in one visit. If your damper isn’t sealing or your cap screen is packed with cedar pollen, now’s the time to get it handled before the next cold snap.
Written by Nolan Pruett, Owner at Ashton Chimney, serving Jonestown for nearly fifteen years.