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 Costa Mesa, CA | Limestone Chimney Sweep
Limestone Chimney Sweep provides independent DuraFlex in Newport Beach and Costa Mesa chimney cleaning and repair, covering all three ZIP codes: 92626, 92627, and 92628. What makes our DuraFlex work different here is simple: we see how salt-laden coastal air corrodes liner connections and hardware in ways inland Orange County homes never experience, so our inspections focus where Costa Mesa conditions actually do damage. Call (855) 341-5439 for a free estimate.
Why Costa Mesa Residents Choose Us for DuraFlex Service
We’re not a DuraFlex dealer or authorized agent. We’re an independent chimney company that has worked on DuraFlex stainless liners and components across Costa Mesa’s coastal neighborhoods for years, which means our recommendations don’t come from a manufacturer’s playbook. They come from pulling liners out of 1950s Westside flues and seeing what the marine layer does to metal over time. DuraFlex sales & service is a big part of what we do, but the honest part is knowing when a liner needs repair and when it just needs the right cleaning technique.
Warren Tilsley, owner of Limestone Chimney Sweep, has run the company for well over a decade after learning the trade fundamentals through the HVAC and sheet metal programs at Irvine Valley College and working hands-on with experienced sweeps across Orange County. He’s pulled enough salt-crusted caps off Costa Mesa flues to know that a surface clean isn’t the same thing as a safe chimney. Our Costa Mesa customers get that level of scrutiny too.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Costa Mesa
- Corrosion at the liner-to-cap connection. Costa Mesa’s onshore salt air attacks the junction where DuraFlex single-wall sections meet galvanized caps. We routinely find rust creep at that seam during cleanings, especially on older Westside and Eastside homes within a mile or two of the coast. We replace affected caps with OEM DuraFlex components and reseal the connection.
- Seized or rusted damper hardware and top-plate clamps. Year-round marine-layer moisture accelerates corrosion on exposed steel parts. We’ve seen clamps so rusted they crumble when touched. We stock OEM and quality aftermarket replacement hardware so we can fix what we find the same day.
- Moisture staining inside the liner from failed top-plate seals. This one’s specific to Costa Mesa. On 1950s tract homes where original clay-tile flues were retrofitted with DuraFlex liners and gas log sets, the top plate often wasn’t sealed properly. We inspect for water intrusion at every cleaning and reseal as needed.
- Liner joint separation from improper prior sweeping. A stiff brush and too much force will damage DuraFlex flexible liners. We use the right brush stiffness for the liner material and inspect every joint with a camera as part of the service.
- Displaced top plates and flashing seals from thermal cycling and mild seismic activity. Costa Mesa sits on the coastal plain, and decades of small tremors plus heating and cooling cycles gradually shift top plates. We check the flashing seal and the top plate alignment on every visit.
DuraFlex Service in Costa Mesa: What Local Conditions Mean for Your Equipment
The Westside’s 1950s tract homes tell a story that inland Orange County homes rarely do. Many of these original masonry chimneys were retrofitted with DuraFlex service in Huntington Beach and nearby areas, but the installers didn’t always seal the top plate correctly. The coastal marine layer pushes moisture into those gaps year-round, so our inspections here often find moisture staining on the liner that a Riverside or even a Santa Ana homeowner would never see. That’s a checkable condition: pull the cap, look at the liner, and you’ll see the water marks. On a 1958 tract home off West 19th Street, our crew pulled a DuraFlex 316 liner and found the top plate clamp rusted through and the cap tilted, letting marine-layer moisture run straight down the flue. We replaced the cap and clamp with OEM DuraFlex parts, resealed the top plate, and the homeowner’s gas log set now vents cleanly with no draft issues. If your Costa Mesa home has a wood-burning fireplace that was converted to gas or fitted with an insert, that top plate seal is the first thing to check.
DuraFlex Models & Products We Service in Costa Mesa
We work on the full DuraFlex liner range: SW single-wall flexible stainless liners, Pro insulated flexible liner kits, 316 316L stainless liners, and Reline kits with tees and caps. Our approach to parts is straightforward: OEM DuraFlex components for critical connections like top plates, caps, and appliance adapters, and quality aftermarket parts for standard hardware like clamps and fasteners. We keep common DuraFlex parts on the truck for Costa Mesa service calls, which means less waiting when a cap or clamp needs replacing during a cleaning.
See the difference
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AfterDuraFlex Service Pricing in Costa Mesa
Chimney sweeping for a standard fireplace in Costa Mesa typically runs $169 to $239 depending on the liner’s condition and access. When a Level 2 inspection is added, expect $189 to $339. Level 2 inspections with a chimney cleaning can run $375 to $600 depending on liner height and access setup. Stainless liner installations in Costa Mesa typically range from $1,200 to $3,500, while a full chimney rebuild runs $2,200 to $5,000. Factors that move the price on a DuraFlex liner include the liner’s age, whether prior sweeps used the wrong brush stiffness, and how much salt corrosion has accumulated at the connections. Every estimate includes a camera inspection and a written report with photos, so you see exactly what we see. Call (855) 341-5439 for a free estimate.
Serving Costa Mesa, CA — Our Local Coverage Area
We’re based in the Costa Mesa area and also provide DuraFlex repair in Fountain Valley, so we know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Costa Mesa
Salt air accelerates corrosion at exposed metal connections, especially the liner-to-cap junction and the appliance collar. In practice, that means the top plate clamps and cap hardware on a Costa Mesa DuraFlex liner will rust faster than the same liner installed inland. During a cleaning we inspect those connections specifically, and we use OEM DuraFlex replacements when corrosion has compromised them.
Check the top plate seal first. Westside homes from the 1950s and 60s often had DuraFlex liners retrofitted into original clay-tile flues without a proper top-plate seal, so marine-layer moisture gets in and stains the liner. Then check the damper hardware for rust. If you see moisture marks or the damper fights you, call us for an inspection. Call (855) 341-5439 and we’ll get a camera down the flue so you can see exactly what’s there.
Yes, if you use the right brush stiffness. DuraFlex flexible liners are corrugated, and a stiff wire brush can scratch the corrugations or damage the seam. We match the brush to the liner material and use a slower pass. We also camera-inspect after every cleaning to confirm the joints are still intact.
It’s the marine layer. Even a few miles from the coast, Costa Mesa’s air carries enough salt to accelerate rust on galvanized steel caps, especially where they meet the stainless liner. Galvanic corrosion between dissimilar metals makes it worse. We replace rusted caps with OEM DuraFlex stainless components and reseal the connection to slow the next round of rust.
We recommend a Level 2 inspection every time a liner is bought, sold, converted, or hasn’t been looked at in years. In Costa Mesa, the salt-air corrosion issue makes the camera work worth it: you can’t see top-plate rust or liner-joint separation from the ground. The inspection costs less than a chimney rebuild, and it tells you definitively whether the liner needs repair or replacement. Call (855) 341-5439 for a free estimate and we’ll schedule the camera inspection.
Service Areas Near Costa Mesa
We also provide DuraFlex service in DuraFlex service in Santa Ana and DuraFlex service in North Tustin. Our crews regularly work in Huntington Beach, Westminster, Midway City, and Villa Park. All of these areas share Costa Mesa’s coastal climate patterns, which means the same salt-air corrosion issues we address there apply here too. Costa Mesa service area coverage extends to every ZIP code in the city.
Book Your DuraFlex Service in Costa Mesa Today
If your Costa Mesa home or San Joaquin Hills DuraFlex service needs a liner that hasn’t been inspected in the last few years, call us. We’ll send a crew that knows what marine-layer moisture does to stainless flue systems and has the parts on hand to fix most problems on the spot. Call (855) 341-5439 for a free estimate.
Written by Warren Tilsley, Owner at Limestone Chimney Sweep, serving Costa Mesa with independent DuraFlex chimney service.