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.
HeatShield Chimney Cleaning in Onion Creek, TX | Boardwalk Chimney Sweep
We provide independent our Chimney Sweep in Onion Creek for HeatShield cleaning and inspection across Onion Creek’s 78747 subdivisions. What makes our HeatShield work different here is simple: we check for silt and water damage inside fireboxes and flues even in houses that look brand new, because the 2013 and 2015 creek floods left marks that don’t always show on drywall. Call (877) 274-1247 to book a HeatShield inspection or cleaning, and we’ll give you a straight answer about what your factory-built fireplace actually needs.
Why Onion Creek Residents Choose Us for HeatShield Service
Brent Holloway has worked on HeatShield prefab fireboxes, gas-log sets, and direct-vent units across Onion Creek since the 1990s building boom filled these streets with factory-built fireplaces. He came up through the HVAC and building systems program at Austin Community College’s Riverside Campus, then spent years on clay-tile liners, stainless inserts, and the double-wall metal systems common in Hill Country homes. That background matters when you’re dealing with a HeatShield unit that’s been sitting idle eight months out of the year.
We’re an independent HeatShield service provider, not an authorized dealer or warranty partner. That independence means we diagnose what the metal is actually doing, not what a warranty administrator wants to hear. We source HeatShield-compatible dampers, refractory panels, and gas-log burner components when available, and we match them to the firebox’s rating plate. When OEM parts are discontinued, we tell you straight and recommend a quality aftermarket replacement with an honest explanation of the trade-off. HeatShield sales & service is our bread and butter in this area, and our repair work uses the same brands chimney professionals specify: DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield.
Styles & brands we work with





Common HeatShield Chimney Cleaning Problems We Solve in Onion Creek
- Silt-packed fireboxes in rebuilt homes. After the Halloween 2013 and 2015 floods along Onion Creek, dozens of houses in 78747 were gutted and rebuilt. The walls look new, but fireboxes and flue components often carry silt and rust from the original flood event. We pull the logs and dig the corners out by hand, then document what we find with photos so you have a record.
- Cracked refractory panels from humidity cycling. Central Texas heat and humidity mean HeatShield prefab fireboxes sit idle nine months a year, then get fired up when the first cold snap hits. That thermal shock plus damp air will crack and spall refractory panels faster than steady use. We’ve seen it in Onion Creek Forest, Onion Creek subdivision, and every 78747 development from the late 90s onward.
- Gas logs that won’t light reliably after a long idle stretch. When a HeatShield gas-log set sits unused all summer, dust and soot settle on the burners and pilot assemblies. Come November, you get delayed ignition or uneven flames. A proper service call cleans those ports and verifies the pilot assembly is firing the burner as designed.
- Rusted dampers that won’t seal. Flood water and high humidity both attack the metal damper assembly on HeatShield prefab units. A damper that won’t close properly lets conditioned air leak up the flue year-round, and in Onion Creek’s damp crawlspace conditions, the rust gets worse faster than in drier subdivisions.
- Condensation and gasket degradation in newer direct-vent units. The 2010s and 2020s builds in Onion Creek often run HeatShield direct-vent gas fireplaces. These seal-tight units can develop condensation inside the firebox during long humid idle periods, and the gaskets around the glass degrade. Homeowners report a “no draft” complaint or a weak flame, but the real issue is often moisture management and seal integrity.
HeatShield Service in Onion Creek: What Local Conditions Mean for Your Equipment
Here’s the thing about Garfield HeatShield service and the rest of Onion Creek that a generic Austin sweep won’t flag: because so many homes in 78747 were flooded in the Halloween 2013 and 2015 creek floods and rebuilt, our inspections always include checking for silt and rust inside fireboxes and flue components, even in houses that look brand new. You’d never need that checklist item a mile away on higher ground. Our tech was called to a rebuilt home in the Onion Creek subdivision off Onion Creek Drive where the homeowners had never used the HeatShield gas-log prefab unit since the house was restored after the 2015 flood. A Level 2 Inspection revealed silt packed into the firebox corners and a rusted damper that wouldn’t seal, plus a cracked refractory panel behind the log set. We cleaned out the silt, replaced the damper and panel with HeatShield-compatible parts, serviced the gas burner, and documented the repair with photos for the homeowner’s records. The unit now drafts correctly and the gas logs ignite cleanly. That’s what we do differently in Onion Creek: we look for what the flood left behind, not just what a sweep would find anywhere else.
HeatShield Models & Products We Service in Onion Creek
We work on the full range of HeatShield equipment you’ll find across Onion Creek’s master-planned subdivisions: the prefabricated metal fireboxes common in 1990s and 2000s builds, HeatShield gas-log fireplace sets and burners, HeatShield direct-vent gas units in the newer 2010s and 2020s construction, and HeatShield chimney liners and flue components. If the rating plate says HeatShield, we service it. Our approach to parts is practical: if a firebox is structurally sound and the failed part is serviceable, we repair it with OEM-equivalent HeatShield-compatible components. If rust, silt, or cracked refractory have compromised the firebox shell or flue, we’ll tell you plainly and recommend replacement. No inflated estimates, no pressure. We repair what we inspect, and we use manufacturer-recognized components so your warranty doesn’t die on a technicality.
HeatShield Service Pricing in Onion Creek
HeatShield chimney cleaning and inspection in Onion Creek typically starts around $189 for a Level 1 sweep and inspection on a gas-log fireplace, and runs between $249 and $389 for a Level 2 inspection documenting firebox condition, damper function, and flue integrity. Repairs go up from there depending on what we find: refractory panel replacement, damper swaps, gas-log burner service, and liner work all carry different price tags. What drives cost in Onion Creek specifically is flood-damage history. A rebuilt home with silt in the firebox corners and rusted flue components costs more to service than a dry, well-used fireplace on higher ground. We can’t give you an exact number over the phone, but we’ll give you a firm quote before any repair starts, and the estimate is free. Call (877) 274-1247 to book.
See the difference
Before
After
Before
After
Before
AfterKey Takeaways
- We’re an independent HeatShield service provider, not manufacturer-authorized, so our diagnostics are straight.
- Onion Creek’s post-flood housing stock means inspections here always check for silt and rust inside fireboxes, even in rebuilt homes.
- We repair HeatShield prefab fireboxes, gas-log sets, and direct-vent units with HeatShield-compatible parts matched to the rating plate.
- Sweep, liner work, and structural repair are handled by the same crew, without subcontracting.
- You can bundle chimney sweeping with dryer vent cleaning in one call, addressing two leading household fire hazards in a single visit.
Serving Onion Creek, TX — Our Local Coverage Area
We’re based in the Onion Creek area and know this community well, including HeatShield repair in Shady Hollow. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – HeatShield Chimney Cleaning in Onion Creek
Yes. Silt and rust from the 2015 Onion Creek flood often pack into firebox corners and flue components even after the house is rebuilt and the drywall is replaced. The firebox sits lower than the living space in many floor plans, so water and debris settle there first. A Level 2 inspection will document what’s actually inside that firebox. Call (877) 274-1247 for a free estimate.
Dust and soot settle on the burner ports and pilot assembly during months of idle operation in Onion Creek’s humid air. When the gas valve opens, the burners don’t get a clean light because the pilot flame is hitting a fouled assembly. We clean the burner, pilot, and thermocouple and verify the gas log setup is flowing as designed.
If the firebox shell is structurally sound and the flue integrity is intact, the refractory panel can typically be replaced with a HeatShield-compatible component. If the crack extends through the firebox shell or the flue shows rust and silt damage, replacement is the honest recommendation. We’ll show you photos of what we found before any repair starts.
Every year before you light the first fall fire. Gas fireplaces still accumulate dust, and Onion Creek’s long idle season plus flood history means a pre-season inspection catches problems before they become repair bills. We recommend an annual Level 1 sweep and visual check, with a Level 2 inspection if you’ve never had one done. Call (877) 274-1247 to get on the fall schedule.
Weak flame and odd smells in a direct-vent unit often point to condensation inside the firebox from humid idle periods, degraded gaskets around the glass, or a partially blocked vent termination outside. We’ll check the gaskets, the condensation drain path, and the vent run for obstruction. A service call from us gets that diagnosed without guesswork.
Service Areas Near Onion Creek
Beyond Onion Creek, we run HeatShield service calls into Onion Creek service area neighborhoods and nearby communities, including Lago Vista, Hornsby Bend, Barton Creek, Lakeway, Bee Cave, and The Hills. Same commercial-grade HeatShield repairs, same straight answers. You can reach us at (877) 274-1247 from anywhere in the area.
We also provide dedicated HeatShield coverage in HeatShield service in Lago Vista and HeatShield service in Hornsby Bend, so your neighbors to the west and east are already covered.
Book Your HeatShield Service in Onion Creek Today
Brent Holloway and the Boardwalk Chimney Sweep crew are ready to inspect and clean your HeatShield fireplace before burning season, including Rollingwood HeatShield service. One call covers chimney sweeping and dryer vent cleaning if you want both knocked out in the same visit. Call (877) 274-1247 for a free estimate, and if you can smell the smoke inside, the chimney’s already telling you something: worth listening before it gets louder.
Written by Brent Holloway, Owner at Boardwalk Chimney Sweep, serving Onion Creek since the 1990s building boom. Based in the Lake Travis Highlands area of Lago Vista.