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 Lomita, CA | Mantel Chimney Sweep
We’re an independent DuraFlex service provider working throughout Lomita, and we handle cleaning, inspection, and repair on these stainless liner systems every week. The thing that makes DuraFlex work different here is simple: on Lomita’s foggy coastal plain, your liner usually isn’t failing from creosote. It’s failing from water. We diagnose the actual problem before recommending any work, whether that’s a cleaning, a crown repair, or a top-plate replacement. Call (844) 821-5749 for a free estimate.
Why Lomita Residents Choose Us for DuraFlex Service
Most chimney companies in the South Bay can run a brush up a flue. Far fewer can tell you whether your DuraFlex liner’s problem is the liner itself, the cap on top of it, or the mortar crown surrounding it. We can, because we’ve worked on hundreds of DuraFlex flexible stainless systems in Lomita’s postwar ranch homes and know how they age along the marine layer. Roland Vega, our owner, has spent well over a decade inspecting chimneys across Southern California, and he’ll tell you the same thing he tells everyone: a clean chimney isn’t a luxury – it’s just the part of the house you can’t see until something goes wrong.
When you call us for DuraFlex service in Lomita, you get a crew that understands the full system. We stock genuine DuraFlex replacement components like caps, top plates, and storm collars alongside high-quality aftermarket stainless options that meet or exceed OEM specs. That means we can usually diagnose and fix in one visit instead of ordering a part and disappearing for two weeks.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Lomita
- Rusted top plates and storm collars. Lomita’s marine layer pushes damp air over the Palos Verdes Peninsula every evening, and that salt-tinged moisture settles on metal components all year. We regularly replace DuraFlex top plates that have corroded through, letting water run down behind the liner. This is usually a repair, not a cleaning problem.
- Water intrusion through cracked crowns. Many of Lomita’s 1950s and 60s tract homes still have their original mortar crowns, and coastal moisture cycles wear them down faster than heat does. When the crown cracks, water follows the flue tile down and rusts the damper and liner connections. We repair the crown and reseal before it becomes a ceiling stain.
- Efflorescence and moss on brick. White mineral deposits or green moss on your chimney exterior means chronic dampness. On Lomita’s humid coastal plain, that dampness accelerates fatigue at the liner joints. We clean the brick, identify where water is getting in, and waterproof the masonry so it stops.
- Liner misalignment in retrofitted flues. A lot of Lomita homes had gas inserts or factory-built units installed after 2000, and original clay tiles often shifted or cracked underneath. When we find a DuraFlex liner that’s out of alignment, we correct it before it becomes a draft or carbon monoxide issue.
- Dampers rusted shut from coastal humidity. Even in Lomita’s mild climate, the onshore air from Santa Monica Bay keeps chimneys damp much of the year. We see dampers that won’t open or close properly because the hinges and frame have rusted. Sometimes it’s a replacement, sometimes just freeing and lubricating the assembly. Either way, we’ll show you before we do anything.
DuraFlex Service in Lomita: What Local Conditions Mean for Your Equipment
Here’s what you won’t read on a generic DuraFlex page. In Lomita, the marine layer and wet winters mean the crown and mortar joints fail before the flue ever thickens with creosote. We lose count of how many calls come in as a “cleaning” that turn out to be water-damage repairs. A foggy South Bay chimney that leaks will stain the ceiling long before it ever clogs. That’s the reality of the 90717 ZIP. Homes near Lomita Park, along Narbonne Avenue, and throughout the flatland tract neighborhoods north of Lomita Boulevard sit close to the coast, and their chimneys spend six months of the year in damp air. If you have a DuraFlex liner and a water stain below the firebox, the liner is probably fine. The top plate, the crown, or both have failed. We check those first, because that’s what Lomita throws at chimneys.
DuraFlex Models & Products We Service in Lomita
Our crew works on the full DuraFlex line: SW single-wall stainless flexible liner, Pro double-wall insulated liner, the Reline kits built for masonry fireplaces, and flex liners sized for wood inserts. Since we’re an independent DuraFlex sales & service provider, not a manufacturer-authorized shop, we make our own calls on parts. We stock genuine DuraFlex caps, top plates, and storm collars, plus aftermarket stainless components that hold up just as well in Lomita’s coastal air. The point is we evaluate whether your liner needs a full reline or just a new top plate and cap, and we tell you straight before any work begins. A full reline costs thousands. A top plate costs a fraction of that. We won’t sell you the bigger job if the smaller one fixes the leak.
See the difference
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AfterDuraFlex Service Pricing in Lomita
Chimney sweeping in Lomita typically runs $180 to $340 for a standard cleaning with inspection, depending on flue condition and roof access. If we’re adding a Level 2 inspection, which Lomita’s older chimneys often warrant, expect $250 to $500 for the video scan and full system check. Crown repair varies by the size of the crown and the extent of the cracking; simple mortar repairs run a few hundred dollars, while a full crown rebuild or waterproofing treatment costs more. Every estimate is free, and we quote flat pricing before any work starts. You’ll know the number before we pick up a tool. Call (844) 821-5749 for an exact quote on your Lomita chimney.
Serving Lomita, CA — Our Local Coverage Area
We’re based in the Lomita 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 – DuraFlex Chimney Cleaning in Lomita
If the liner has been in place for years and you don’t know its condition, yes. A Level 2 inspection with a video scan shows us the liner joints, the top plate, and the crown before we brush anything. In Lomita’s damp air, we’re looking for rust and water intrusion more than creosote buildup. Call (844) 821-5749 to schedule one.
Because the liner isn’t the problem. Lomita’s coastal fog and rainy winters corrode top plates and crack mortar crowns, and that lets water travel down the outside of the flue and into your framing. We fix the crown, reseal the top, and the stain stops. It’s not a cleaning issue.
Usually just the cap. If your liner is intact and only the cap or top plate has rusted through, we stock genuine DuraFlex replacements and can swap them in one visit. We only recommend relining when the liner itself shows separation or perforation, and we’ll show you the camera footage before you decide. Call (844) 821-5749 for an assessment.
Less often than a wood-burning fireplace, but yes, at least periodically. Gas logs don’t produce creosote, but Lomita’s humidity still rusts dampers, corrodes top plates, and allows debris or small animals into the flue. We inspect and clean gas-converted DuraFlex systems as needed, usually on an every-few-years schedule rather than annually. Call (844) 821-5749 and we’ll tell you what yours actually needs.
It keeps the exterior components damp year-round. Top plates, storm collars, and damper assemblies rust faster here than they do ten miles inland, and brick chimneys grow moss and efflorescence that signals water saturation. The liner itself usually survives. The metal and mortar around it don’t. We check those first on every Lomita call.
Service Areas Near Lomita
Our DuraFlex work also takes us through the South Bay and beyond, including Lomita service area neighbors like Torrance, Harbor City, and San Pedro, plus DuraFlex service in Alondra Park and DuraFlex service in Rancho Santa Fe for clients with second homes or properties further out. If you’re near the coast or a bit inland, call and we’ll tell you if we can get to you this week.
Book Your DuraFlex Service in Lomita Today
If your Lomita chimney has a DuraFlex liner and hasn’t been looked at in a while, call us at (844) 821-5749. We’ll schedule a free estimate, inspect your system, and show you exactly what you’re dealing with before any work begins. Water and rust don’t fix themselves.
Written by Roland Vega, Owner at Mantel Chimney Sweep, serving Lomita and the surrounding South Bay.