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.
DuraFlex Chimney Cleaning in Lost Creek, TX | Ashton Chimney
We provide independent DuraFlex chimney cleaning and service across Lost Creek, TX (78746), and we’re the crew that actually understands how these factory-built systems behave after three or four decades in Hill Country weather. The one thing that makes our DuraFlex work different here: we don’t just sweep the flue – we verify the spark arrestor on your cap, because Lost Creek’s wildfire-interface rules and oak canopy make that screen a safety component, not an accessory. Call (855) 507-9184 for a free estimate.

Lost Creek’s 1970s through 1990s custom homes are full of original fireplace systems, many of them metal factory-built units with stainless flexible liners that predate modern insulation standards. We know exactly how those liners age in this climate, and we stock the OEM-compatible parts to fix them. Whether you need a routine creosote removal, a Level 2 inspection on a 40-year-old DuraFlex flue, or a full cap replacement before winter, Ashton Chimney handles it from first inspection to final draft test. We’re an independent DuraFlex service provider – not manufacturer-affiliated or authorized – which means we give you a straight read on what’s actually in that flue. For the full scope of what we work on, see our DuraFlex sales & service page.
Why Lost Creek Residents Choose Us for DuraFlex Service
Our crew has spent years tearing into DuraFlex factory-built chimney systems across Austin’s west side, including DuraFlex repair in Austin. We know how these liners wear, how their caps fail, and what it takes to bring a 30-year-old flue back to safe, code-compliant condition. Nolan Pruett, owner at Ashton Chimney, grew up in the Buttercup Creek neighborhood of Cedar Park and still lives within a few miles of where he learned to ride a bike. He picked up the fundamentals of HVAC and combustion systems through the Building Trades program at Austin Community College’s Round Rock Campus, then spent the better part of his twenties getting hands-on with fireplaces and flues across the Austin metro before planting his flag in his own backyard. He’s been sweeping chimneys in this region for going on fifteen years, and he’s become the guy neighbors call when a Level 2 inspection turns up a liner problem someone else missed.
What does that mean for your Lost Creek home? We’ve worked on the same factory-built systems that fill this neighborhood, and we already know what fails first. We name the products we install – DuraFlex liner sections, HeatShield resurfacing material, Gelco waterproofing – so you know exactly what’s going into your home. And we don’t recommend a repair until we’ve put a camera in the flue and can show you the problem in plain language.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Lost Creek
- Oak-leaf and cedar-pollen clogged spark arrestors. Lost Creek’s wooded lots drop leaves and pollen into cap screens from March through November. By late fall, a DuraFlex cap that was clear in June is often packed tight, cutting draft and trapping creosote behind the mesh. We replace or clean the screen and re-verify airflow every visit.
- Hardened creosote from long summer dormancy. Hot, dry summers let creosote cure to a glazed, rock-hard layer inside the liner. A routine sweep here takes longer than in a damper climate because that buildup doesn’t brush out easily – it needs mechanical tools. In Lost Creek, this is the single most common reason a fireplace underperforms on the first cold night.
- Bird and squirrel nests packed against a dormant flue. When a fireplace sits unused from April to October, animals move in. We regularly pull nests out of DuraFlex liners in Lost Creek before the first cold snap, and a nest combined with glazed creosote is a genuine fire risk the moment you light that first October log.
- Warped or separated flexible liner joints. Older DuraFlex stainless liners that were installed without proper insulation in Hill Country prefab systems can overheat at the seams after several heavy winter seasons. When that happens, the liner no longer contains combustion gases the way it should. We camera-inspect every liner before cleaning so we know if the flue is just dirty or actually compromised.
- Water intrusion through loose cap collars. Factory-built chimney sections and cap collars on 1970s – 90s Lost Creek homes loosen and corrode at the seams. Hard freezes push moisture into those gaps, which degrades the liner over time. We re-seal with professional-grade materials and replace cap assemblies when the metal’s too far gone.
DuraFlex Service in Lost Creek: What Local Conditions Mean for Your Equipment
Because Lost Creek’s homes back onto dense live oak and cedar brush at the wildfire interface, many neighborhood HOA and fire-safety expectations push for functioning spark arrestors on DuraFlex caps – so a routine sweep here often turns into a cap-and-screen verification, not just a flue cleaning. We see this on nearly every call in the 78746 ZIP code. After a dry summer, technicians regularly pull out hardened creosote and even bird or squirrel nests from flues before the first cold snap, and the surrounding oak canopy means most DuraFlex caps need their screens cleared every single visit. On a two-story ranch off a wooded lot near Barton Creek DuraFlex service areas, we pulled a squirrel nest and a fist-sized chunk of glazed creosote out of a DuraFlex-lined flue before the first cold snap – the homeowner had no idea the summer dormancy had packed the liner. Our tech found the original spark-arrestor screen on the DuraFlex cap crushed and leaf-clogged, replaced the cap assembly, and verified draft with a Level 2 inspection so the fireplace was safe to light. That’s not a dramatic worst case in Lost Creek; it’s a typical September call.
DuraFlex Models & Products We Service in Lost Creek
We service all the DuraFlex product families you’re likely to find in a 1970s – 90s Lost Creek home: stainless-steel flexible relining kits (the brand’s core aftermarket liner system, used to re-line failing masonry and prefab flues), insulated flexible chimney liner systems, and universal or multi-flue chimney caps with spark arrestor screens. Our parts approach is straightforward: we use OEM DuraFlex liner sections and cap assemblies when a direct match is available, and quality aftermarket components only where they meet the same UL listing and dimensional spec. We won’t force-fit a cheaper cap onto your DuraFlex flue just to hit a number. When your liner is sound, we clean, re-cap, and re-seal it. When it’s warped, cracked, or water-damaged, we recommend full re-line rather than patch a system that won’t hold up another season. For our full service-area reach, see our Lost Creek service area page.
See the difference
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AfterDuraFlex Service Pricing in Lost Creek
Key Takeaways:
- Chimney sweep (inspection + cleaning) in Lost Creek typically runs $189 – $279 depending on flue condition and access.
- Adding a camera inspection or Level 2 evaluation to a sweep runs $129 – $199.
- DuraFlex cap and spark-arrestor replacement typically falls between $380 – $850, parts included.
- Metal prefab or factory-built chimney cleaning (very common in Lost Creek’s 1970s – 90s homes) runs $219 – $299.
- Level 2 inspection (real estate, weather event, or suspected liner damage) typically runs $199 – $349.
What drives the cost in Lost Creek? Long summer dormancy means thicker creosote that takes longer to remove, and oak leaf debris on the roof and cap means extra time at the top. A two-story home with a steep roofline adds access time. Your free estimate covers a hands-on inspection, camera look at the flue, and a written quote before any work starts. Call (855) 507-9184 for an exact quote – estimates are free and there’s no charge for the visit.
Serving Lost Creek, TX — Our Local Coverage Area
We’re based in the Lost Creek area and know this community well, and we also provide DuraFlex service in West Lake Hills. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Lost Creek
In most cases, a 1980s factory-built chimney can be re-lined with a new DuraFlex stainless flexible liner rather than demolished and rebuilt. The deciding factor is the condition of the surrounding chase, framing, and cap assembly. If the metal firebox and outer casing are structurally sound, a re-line restores the flue to safe operation at a fraction of replacement cost. We’ll camera-inspect the system and tell you exactly which path applies. Call (855) 507-9184 to schedule an inspection.
Yes, and in Lost Creek it’s not optional in practice. Given the wildfire-interface location and dense oak and cedar brush, many neighborhood HOA and fire-safety expectations require functioning spark arrestors on chimney caps – and even where they don’t, a home surrounded by live oak canopy is exactly where an open flue throws sparks in a dry fall. Your DuraFlex cap should have an intact, unclogged screen. We check it on every visit and replace it when the mesh is crushed, rusted, or packed with debris.
Once a year, before burning season. Lost Creek’s long hot summers give creosote time to harden and animals time to nest, so the fall sweep is where we find the most buildup. If you burn more than three cords of wood per winter or use the fireplace weekly from November through February, consider a second cleaning mid-season. The National Fire Protection Association says “at least once a year,” and in this climate we consider that the floor, not the ceiling.
A Level 2 inspection includes everything in a Level 1 sweep plus a camera scan of the full liner interior, access to the attic and crawlspace sections of the chimney, and a close look at the cap, flashing, and clearance to combustibles. It’s the inspection we recommend when a home is being sold, after a chimney fire or hard freeze, or when a liner is 30+ years old and has never been camera-checked. Tell me what your fireplace is doing and I’ll tell you exactly what’s going on in that flue.
Yes. Nest removal is a standard part of our sweep work in Lost Creek, especially after the summer dormancy period. We remove the nesting material, check for damage to the liner and cap screen, and confirm the flue drafts properly before you light the first fire. If the cap’s spark arrestor has been chewed through or crushed, we’ll quote a replacement. Call (855) 507-9184 and we’ll get it cleared before burning season arrives.
Service Areas Near Lost Creek
Ashton Chimney works across Austin’s west side and the surrounding Hill Country communities. Along with Lost Creek, we provide DuraFlex chimney cleaning in Cedar Park, Anderson Mill, Brushy Creek, Jollyville, Leander, and Jonestown. If you’re in The Hills, see our DuraFlex service in The Hills page. Homeowners in Briarcliff can find details on our DuraFlex service in Briarcliff page.
Book Your DuraFlex Service in Lost Creek Today
If your DuraFlex-lined fireplace hasn’t been cleaned since last winter, or you’re not sure when the spark arrestor was last checked, now’s the time to schedule DuraFlex service in Rollingwood and nearby areas. Call (855) 507-9184 for a free estimate and we’ll inspect, clean, and tell you exactly what you’re working with – no scare tactics, just a straight read on your flue.
Written by Nolan Pruett, Owner at Ashton Chimney, serving Lost Creek and the surrounding Hill Country communities since 2010.