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 Onion Creek
A chimney sweep in Onion Creek typically costs between $169 and $289 for a standard cleaning with inspection, and most visits take 60 to 90 minutes. Homes in the 78747 zip code need a sweep before the first cold snap, not after the fireplace has been running for weeks. We know this neighborhood’s flood history and what it means for fireplaces, and we schedule Onion Creek work with that in mind. Call (855) 507-9184 to get on the books before the fall rush.
Onion Creek sits where South Austin’s golf-course subdivisions meet the floodplain of Onion Creek itself, and that geography shapes the chimney work we do here. Homes built between roughly 2000 and 2015 dominate the area, and many of them have gas or wood-burning fireplaces that sat through the 2013 and 2015 floods. Whether your home was directly inundated or just took on storm-driven rain, the chimney is often where the damage shows up last. We’ll get into what that means below, but the short version is this: in Onion Creek, a sweep is rarely just a sweep. It starts with a moisture and structural check because the local history demands it.
Why Ashton Chimney Is Onion Creek’s Preferred Chimney Sweep Company
We’ve worked on enough homes between Old San Antonio Road and the Onion Creek Club to know what the local fireplaces deal with. Our Chimney Sweep crews have opened fireboxes in this subdivision and found water lines from 2015, rusted dampers, and mortar that looked fine from the outside but crumbled on contact. That experience means we don’t rush a brush up the flue just to finish fast. We check what the house has been through, then we clean what’s actually safe to clean.
Customers in 78747 tell us the same thing: the first cold front hits, they light the fireplace, and the room fills with smoke or the damper won’t budge. By the time most homeowners call, they’ve already tried it once. We get that. Our job is to make sure the next fire is the good kind. Nolan Pruett, who leads Ashton Chimney, built the company around a simple rule: name the materials we use, explain the condition we find, and never sell a repair the homeowner can’t verify. If we tell you the crown is cracked, you’ll see the photo. That’s how we’ve earned the calls we get from Onion Creek year after year.
Styles & brands we work with
Chimney Services in Onion Creek
Chimney services in Onion Creek run from a basic sweep and visual check at around $169 to more involved jobs like Level 2 inspections, damper replacement, or crown repair that can run $450 to $900 depending on what we find. What determines the price here isn’t just the size of the flue. It’s what the chimney has been through. A fireplace in a rebuilt home off South Pleasant Valley Road might look fine from the hearth, but the flue can hide silt residue or moisture intrusion that needs real attention before it’s safe to burn.
Full Sweep Plus Inspection
A standard visit covers creosote removal, soot removal, and a Level 1 inspection of the firebox, damper, and accessible flue. For Onion Creek homes with flood history, we recommend upgrading to a Level 2 inspection, especially if the fireplace hasn’t been used since before 2015. The camera tells us what a brush can’t.
Moisture and Structure Check
Given what this neighborhood has been through, we check the crown, cap, flashing, and damper on every visit to Onion Creek. Water is the common thread in almost every chimney failure we find here. If your ceiling shows a stain, the chimney is the first thing we want to look at.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Chimney Sweep Certified in Onion Creek
A chimney sweep certified in Onion Creek means more here than in most Austin suburbs because the flood history changes the baseline. Our process is the same on every job: inspect first, sweep second, and never light a fire in a chimney we haven’t looked at. In Onion Creek, we add a step most companies skip: we check for silt lines, rust, and moisture paths before the brush goes up. If we find water damage, we stop and show you what we found, then talk through your options. That’s the difference between a cleaning and an actual safety visit.
Sweep With Camera Inspection
We run a camera up the flue on every Onion Creek job, not just the ones where something looks wrong. A flue can look clean from the top and still have a cracked tile or failed mortar joint mid-run. You get the photos, and we walk through what they mean.
Creosote and Soot Removal
Creosote hardens fast in Central Texas humidity when a fireplace sits unused for months. By October, what was a thin glaze in March can be a thick, stubborn deposit. We use mechanical brushes sized to the flue and document what comes out. If we find third-degree creosote, you’ll know it, and we’ll explain why a sweep alone may not be enough.
Trusted Brands We Service in Onion Creek
When repairs go beyond a sweep, we use materials from the brands chimney professionals actually specify: DuraFlex for stainless relining, HeatShield for flue resurfacing, and Olympia Chimney, Famco, or Copperfield for dampers, caps, and flashing components. These are the same materials we’d put in our own homes, and we stock common parts for faster turnaround in the 78747 service area. If your damper is rusted shut after years of flood moisture and humidity, we can usually replace it with a Famco or Copperfield unit without waiting on a special order. We name the products we install so you know exactly what’s going in, and we stand behind the work.
Common Chimney Sweep Problems We See in Onion Creek Homes
- Rusted dampers from flood and humidity exposure. Even homes that stayed dry in 2013 and 2015 deal with Central Texas humidity, but the flood homes here have dampers that seize shut from rust. We free or replace them before the first fire of the season.
- Wind-driven rain past cracked crowns. Severe storms push water sideways into chimneys, and a hairline crown crack is all it takes. By the time you see a ceiling stain, water has been moving through the flue for months.
- Silt lines and sediment in the firebox. Homes rebuilt after the floods sometimes got new drywall and flooring but kept the old fireplace internals. We find silt lines behind the gas logs and inside the flue that need to be assessed, not swept over.
- Hardened creosote from long idle stretches. Fireplaces here sit unused from March to October, and that idle time lets creosote harden into a dense, glassy layer. A standard brush won’t cut it; we use appropriate tools and check the whole flue before calling it done.
See the difference
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After
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AfterPricing for Chimney Sweep in Onion Creek, TX
A standard chimney sweep and Level 1 inspection in Onion Creek runs $169 to $249 for most single-flue fireplaces. Add a Level 2 camera inspection and you’re looking at $289 to $399 for the full visit. If we find a damaged damper, cracked crown, or flashing issue, those repairs typically add $150 to $700 depending on what’s involved. Relining with DuraFlex or HeatShield work is more, and we’ll quote that only after a camera inspection confirms it’s needed. Every quote is free, and we’ll show you the photos before you decide anything. Call (855) 507-9184 for a firm number on your Onion Creek home.
We Also Serve Cities Near Onion Creek
Our crews work throughout South Austin and the surrounding communities, including Manchaca, Buda, Garfield, and Shady Hollow. If you’re in one of those areas and need a chimney check, the same Chimney Sweep in Onion Creek team that knows this flood-recovery territory can help. Same standards, same brands, same straight answers.
Serving Onion Creek, TX — Our Local Coverage Area
We’re based in the Onion Creek 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 Onion Creek
You can’t know for certain without a camera inspection of the flue and a close look at the damper, firebox, and crown. Flood water leaves silt, rust, and moisture damage even in rebuilt homes. If your fireplace was inundated or sat in high humidity for months, schedule a Level 2 inspection before lighting anything. We’ll show you what we find, and if it’s safe, we’ll sweep it so it’s ready. Call (855) 507-9184 to book that inspection.
Check the damper first: if it won’t open or close smoothly, water or rust may be the culprit. Look at the crown and cap from the ground for obvious cracks or displacement, and check the ceiling around the chimney for any staining. Those are the three early warnings we see most in 78747. If any of them show up, don’t light a fire until a sweep and inspection confirm the flue is clear and dry.
Usually yes, though it can also be a cracked crown or displaced cap letting water run down inside the chase. Failed flashing at the roof line is the most common source: wind-driven rain gets behind it and tracks down along the flue. We’ll inspect the crown, cap, flashing, and the flue interior in one visit, show you photos of what’s failing, and quote the repair. Call (855) 507-9184 and we’ll get it diagnosed.
We do, and it’s more common here than in neighborhoods where fireplaces get used year-round. A fireplace that sits from spring through fall in humid conditions lets creosote harden into a dense, tar-like layer that mechanical brushes can struggle to remove. Third-degree creosote is a fire risk and often means a more aggressive cleaning approach, sometimes followed by a HeatShield resurfacing if the flue surface is compromised. We’ll tell you exactly what you’re dealing with before we recommend anything.
A routine sweep here starts with a moisture and structural inspection because so many 78747 homes carry water damage that a simple cleaning would miss. Silt in the firebox, rusted dampers, cracked crowns, and compromised mortar all show up in homes that went through 2013 or 2015. We can’t do a responsible sweep without checking those first. If those checks are clear, the sweep is straightforward; if they’re not, we’ll document what we find and lay out your options before we go further.
Scheduling a Chimney Sweep in Onion Creek
Fireplace season in Onion Creek arrives fast. The first real cold front sends dozens of homeowners looking for a chimney sweep in the same week, and the schedule fills quickly. If your fireplace hasn’t been checked since before the last flood event or you saw something that didn’t look right, don’t wait for the first freeze. Call (855) 507-9184 and we’ll get you on the calendar. Free estimates, straight answers, and photos of anything we ask you to pay for.
Written by Nolan Pruett, Owner at Ashton Chimney, serving Onion Creek and South Austin.