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 $189 – $279 for a standard prefab fireplace cleaning and inspection, and most jobs are completed in under two hours. If you live in the 78747 zip code, we can usually get a tech to your door within 3 – 5 business days, often sooner during the fall pre-burn season. Oakgrove Chimney Sweep has worked extensively across Onion Creek’s 1990s – 2010s subdivisions, and we know these factory-built fireboxes and short offset flues better than most. Call (866) 472-2513 for a firm quote before you book.
Why Oakgrove Chimney Sweep Is Onion Creek’s Preferred Chimney Sweep Company
Most Onion Creek homes we visit were built between 1995 and 2015, which means the fireplaces are almost always prefabricated metal units, not traditional masonry chimneys. That changes the job significantly. A sweep here is less about chipping glazed creosote off brick and more about inspecting factory-built fireboxes, checking offset flue joints, and making sure the chase cover and cap are still sealed against Central Texas rain and pests. Homeowners along Bradshaw Road, in the Onion Creek Club area, and over in the Sheldon 78747 subdivisions have called us for years because we carry manufacturer-specific parts instead of insisting a generic hardware-store cap will fit.
Glen Whitaker has built the company around one idea: sweep, inspect, repair, one company. When we find a cracked flue tile, a loose cap, or a water-damaged chase top during your Chimney Sweep visit, we can fix it on the spot or schedule the repair with the same crew. You won’t get handed a phone number for a third-party contractor and told to figure it out. That’s the full-service accountability homeowners in Onion Creek tell us they appreciate most.
Styles & brands we work with
Chimney Sweep Certified in Onion Creek
Chimney Sweep Certified work in Onion Creek means a trained technician removes creosote and soot from the flue, then performs a visual inspection of the firebox, damper, cap, and chase. For most prefab units in this area, the cost runs $189 – $279, which includes the cleaning, a Level 1 inspection, and a written condition report with photos. If you’ve never had the chimney looked at since moving in, or if you smell a campfire odor on humid days, it’s time.
Level 1 Inspection Included
Every sweep we perform in Onion Creek includes a Level 1 inspection at no added charge. We check the accessible portions of the flue, the firebox, the damper operation, and the exterior termination. Given how many of these homes have decorative gas-log inserts used only a handful of nights a year, the inspection often matters more than the sweeping itself.
Creosote and Soot Removal for Prefab Flues
Creosote still forms in factory-built chimneys, especially in the short offset bends where gasses slow and cool. We use brushes sized for the specific diameter of your prefab flue, not a one-size-fits-all masonry sweep. Soot removal for gas-log inserts is a lighter job, but it still needs doing if the glass is hazing over or you’re smelling dust on startup.
Gas Fireplace Cleaning in Onion Creek
Gas Fireplace Cleaning in Onion Creek is a common request because so many homes here have vented gas-log inserts sitting in prefab fireboxes. The job involves removing the logs, cleaning the burner and pilot assembly, clearing soot from the glass, and checking the venting path for obstructions. Pricing runs $149 – $239 for most gas units in the 78747 area. If you burn the fireplace more than a dozen times a winter, annual cleaning keeps the flame blue and the glass clear.
Burner and Pilot Service
Over time, dust and pet hair accumulate around the burner ports, causing uneven flames and occasional ignition delays. We disassemble the log set, blow out the burner, and verify the pilot is producing a strong, stable flame. This is also when we catch small gas-line fittings that have loosened from thermal cycling.
Glass and Venting Check
Cloudy glass on a gas insert usually means soot buildup from incomplete combustion, which points to an airflow issue somewhere in the venting path. We clean the ceramic glass with the correct cleaner, then check the termination cap and any horizontal vent sections for nests or debris. On Onion Creek homes backing up to greenbelt areas, bird activity around vent caps is a recurring issue.
Trusted Brands We Service in Onion Creek
We stock and install parts from DuraFlex, Olympia Chimney, and Famco, which means when we find a damaged cap, a rusted chase cover, or a deteriorated liner section during a sweep in Onion Creek, we can usually complete the repair that same visit. These are the same professional-grade components chimney contractors use on new installs and relines, not the thin galvanized caps you’ll find at big-box stores. For Onion Creek homeowners with prefab units, having the correct manufacturer-compatible cap or chase top on the truck is the difference between a two-hour job and a two-week wait. Your flue is a combustion system, and the parts on it should come from combustion-system suppliers.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Onion Creek Homes
- Bird and wasp nests in flues: Because so many Onion Creek fireplaces sit idle from March through November, birds and wasps build nests in the flue and around the cap. We routinely pull out full nests before any sweeping even starts.
- Leaf packing from nearby greenbelt oaks: Homes along the golf course and greenbelt lots deal with heavy leaf fall. If the chimney cap is loose or the mesh is damaged, leaves pack into the flue and block draft completely.
- Creosote hiding in offset flue bends: Factory-built chimneys in this area often have two or three offsets to route around rooflines. Creosote collects in those bends and needs brushes sized for the specific flue diameter, not a generic sweep.
- Rusted chase covers and water intrusion: Brick veneer homes with prefab chases are vulnerable to rust-through on the metal chase top. Water gets in, damages the firebox, and sends rust streaks down the exterior brick.
Pricing for Chimney Sweep in Onion Creek, TX
You should expect to pay $189 – $279 for a standard chimney sweep and Level 1 inspection on a prefab fireplace in Onion Creek. Gas fireplace cleaning runs $149 – $239. If we find damage during the sweep that needs a Level 2 inspection, that adds $199 – $349 depending on the scope. What changes the price most is the condition of the flue: a light soot cleaning is quick, while pulling out a full bird nest and running a camera up a short offset flue takes longer. We give you a firm price before any work starts, and every quote includes the written condition report with photos. Estimates are free. Call (866) 472-2513 and we’ll give you an exact number for your fireplace.
On a recent job in the Barton Creek West neighborhood, our tech inspected a 2008 HeatShield-equipped prefab fireplace and found the flue packed with leaves and a bird nest, blocking draft. After removing the debris and running a Level 2 inspection, we confirmed the chimney cap was loose and resealed it, restoring safe operation. That’s the kind of thing a homeowner can’t see from the living room, and it’s exactly why even a fireplace that’s rarely used still needs a yearly look.
We Also Serve Cities Near Onion Creek
Oakgrove Chimney Sweep provides full-service Chimney Sweep in Onion Creek and the surrounding communities. We regularly schedule routes through Manchaca, Buda, Garfield, and Shady Hollow, so if you’re just outside the 78747 boundary, we can still get to you without a long wait. One call covers the whole area.
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
Even a fireplace that’s never lit still accumulates bird nests, wasp nests, leaves, and dust in the flue, and on Onion Creek properties near the greenbelt areas, pests are the primary issue, not creosote. Prefab chimneys have short, offset flues that are easy for birds to enter, especially if the cap mesh is loose or damaged. An annual inspection catches these obstructions before they block draft or send smoke back into the house on the one night a year you actually light a fire. The fact that the home is newer doesn’t protect the flue from what Central Texas wildlife puts in it. Call (866) 472-2513 to schedule a sweep and inspection for your prefab unit.
We service and install components from DuraFlex, Olympia Chimney, Famco, and Copperfield, which covers the majority of factory-built fireplace and chimney systems installed in Onion Creek’s 1990s – 2010s production homes. That includes chase covers, termination caps, flue liners, and venting components from the professional supply chain, not hardware-store substitutes. If your prefab fireplace has a manufacturer-specific cap or chase top, we can usually match it. Having the right part on the truck means a sweep that turns up a rusted cap can often be fixed the same day.
The biggest difference is that Onion Creek’s housing stock is dominated by factory-built metal fireboxes with short, offset flues rather than full masonry chimneys, so we’re checking manufacturer-specific components, not hand-built brickwork. Those offsets trap creosote in bends, and the metal chase and cap are the main points of failure here, not spalled brick or deteriorated mortar. In older South Austin masonry chimneys, we’re dealing with decades of glaze creosote and structural brick issues. The tools and the inspection focus are different, which is why you want a crew that understands prefab systems specifically.
Expect us to remove the log set, clean the burner and pilot assembly, clear soot from the glass, and inspect the venting path, which typically costs $149 – $239 in Onion Creek. We also check the termination cap for nests or debris, since gas inserts on greenbelt-adjacent lots are a magnet for birds. You’ll get a written report with photos of anything we find, and if there’s a draft issue or a loose fitting, we’ll tell you what needs fixing and what can safely wait. No work gets recommended without camera evidence you can see for yourself.
Yes, removing bird and wasp nests is one of the most common jobs we do in Onion Creek during the fall pre-burn season, and it’s included in the sweep if the nest is accessible from the top or through the firebox. We also check the chimney cap to figure out how the birds got in and recommend a repair or replacement to keep them out. Bird nesting material is highly flammable, so the fireplace should not be used until the flue is cleared and inspected. Call (866) 472-2513 and we’ll schedule a removal and inspection, usually the same week.
Written by Glen Whitaker, Owner at Oakgrove Chimney Sweep, serving Onion Creek and the greater San Marcos area.