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 Pomona, CA | Lantern Chimney Sweep
DuraFlex chimney cleaning in Pomona starts with a Level 2 camera inspection, because around here the older factory-built units hide problems a quick sweep won’t catch. We’re an independent DuraFlex service provider, not manufacturer-affiliated, and we work on these systems across Pomona, from Lincoln Park bungalows to east-side tract homes. If you’ve got a DuraFlex fireplace or liner that hasn’t been looked at in years, call (855) 341-8132 and we’ll tell you exactly what’s going on inside that flue.
Why Pomona Residents Choose Us for DuraFlex Service
We’ve spent years working on DuraFlex factory-built fireplaces and flexible liner systems in Pomona, and we know the failure patterns specific to this city’s housing stock. Len Castorena grew up in the Lincoln Park neighborhood and has worked on chimneys across the Pomona Valley for nearly three decades. That time on local roofs matters when you’re dealing with a 1960s DuraFlex unit in a Wilton Heights ranch or a retrofitted liner in a 1920s Arts Colony craftsman. We keep DuraFlex sales & service expertise current because these systems show up constantly in Pomona’s older homes. We stock OEM-compatible components and quality aftermarket parts, so most repairs don’t wait on a special order. When we arrive, we diagnose first, show you the camera footage, and only then talk repair options. That’s how we’ve always done it.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Pomona
- Cracked inner liners on 1960s – 70s factory-built fireplaces. East-side Pomona tract homes from that era frequently have DuraFlex units with liners that have been baking in the San Gabriel Valley heat for fifty years. Hairline cracks turn into dangerous gaps, and most homeowners never see it until we put a camera up there.
- Separating liner seams after seismic activity. Pomona sits in earthquake country, and older DuraFlex chimney liners don’t always hold their seams when the ground moves. A separated seam kills draft and can route heat into surrounding framing. We check every seam during cleaning.
- Rusted dampers and corroded caps from Santa Ana grit. Those wind events drive fine dust and debris into caps and screens across Pomona. Add the occasional winter rain, and you get rusted dampers frozen in place. We replace them with Gelco components when needed.
- Improperly sized retrofitted liners. In Pomona’s older masonry chimneys, a previous owner or a handyman often drops in a DuraFlex liner that’s the wrong diameter for the appliance. That leads to creosote buildup and poor venting. We see it regularly in Lincoln Park and the Arts Colony bungalows.
- Gas logs installed without relining wood-built flues. This one’s common across Pomona’s historic core. The clay tile is glazed with decades of creosote and the damper is rusted shut behind a gas valve. It looks fine from the living room. It isn’t.
DuraFlex Service in Pomona: What Local Conditions Mean for Your Equipment
Pomona is an old citrus-and-packing-house town, and that history shaped the chimneys still standing today. In neighborhoods like Lincoln Park and Wilton Heights, many DuraFlex factory-built fireplaces from the 1960s and 70s were installed before modern clearance standards existed. The hot, dry summers bake those liners year after year, and the Santa Ana winds push abrasive grit into every cap and screen. We routinely find cracked inner liners on units that look perfectly fine from the outside. On a 1950s ranch house in Wilton Heights, our tech found a DuraFlex factory-built fireplace with a severely cracked liner and rusted damper during a Covina DuraFlex service call. The homeowner had been burning wood with no idea of the risk. We replaced the liner with a new DuraFlex-compatible system, installed a multi-flue cap, and got that fireplace back to safe operation. That’s why a Level 2 camera inspection matters before any gas conversion or first fire of the season. A clean chimney is a quiet chimney, and quiet is exactly what you want.
DuraFlex Models & Products We Service in Pomona
We service the full range of DuraFlex product lines found in Pomona homes. That includes DuraFlex FLex Vent systems, DuraFlex Direct Vent, DuraFlex Chimney Liners, and older DuraFlex Factory-Built Fireplaces. On the parts side, we stock OEM DuraFlex components alongside aftermarket options that meet or exceed original specifications. Not every repair needs a factory-stamped part, but some do. We’ll tell you which is which. For Pomona service area calls, having common DuraFlex parts on hand means we often complete repairs the same day we diagnose the problem.
See the difference
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AfterDuraFlex Service Pricing in Pomona
Chimney cleaning for a DuraFlex system in Pomona typically runs $180 to $320, depending on whether it’s a factory-built fireplace or a liner system and how much buildup has accumulated. Level 2 camera inspections start around $150, and that’s the where we usually start before quoting any repair. Relining a DuraFlex system is a bigger job, generally $1,800 to $3,600 depending on the flue length and liner diameter. Cap replacement with a Gelco component usually adds $250 to $500. Every estimate starts with a camera inspection we show you on the spot. Call (855) 341-8132 for a free estimate, and we’ll walk you through what your DuraFlex system actually needs.
Serving Pomona, CA — Our Local Coverage Area
We’re based in the Pomona area and know this community well, including nearby DuraFlex repair in Walnut. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Pomona
You won’t know from the living room. Cracks, separated seams, and corrosion happen inside the flue, invisible until we run a Level 2 camera inspection. If you’ve got a 1960s or 70s DuraFlex unit that’s never been inspected, or you smell smoke after the fire’s out, call (855) 341-8132 and we’ll show you what the camera finds.
Yes. Many of those Pomona bungalows and craftsmans have DuraFlex units retrofitted into original brick chimneys, and those are some of the most problematic installs we see. We know the clearance issues, the liner sizing mistakes, and the damper problems common to those era homes.
A Level 1 inspection is a visual check of the accessible parts of the chimney, what we do during a routine sweep. A Level 2 inspection includes a camera scan of the full flue interior, and it’s the one that catches cracked DuraFlex liners and hidden deterioration. We recommend Level 2 for any Pomona home with a factory-built fireplace over 20 years old, and we also offer our Chimney Sweep in Pomona for routine maintenance.
Yes. We install Gelco chimney caps and covers that fit DuraFlex factory-built and liner systems. A corroded cap from years of Santa Ana grit and rain lets water into the flue, and rust follows. We’ll show you the old cap, explain what failed, and replace it with a durable component.
Only after a Level 2 inspection. In Pomona’s historic core, we find gas log sets installed in flues that still carry decades of wood creosote and a rusted damper. Heat from gas isn’t as intense, but the venting path needs to be clean and properly sized. Call (855) 341-8132 and we’ll assess exactly what your conversion would require.
Service Areas Near Pomona
We serve Pomona and the surrounding Pomona Valley, including DuraFlex service in La Verne, DuraFlex service in Claremont, plus Montclair, Chino, and Ontario. Same DuraFlex expertise, same camera-first diagnostic approach.
Book Your DuraFlex Service in Pomona Today
If your DuraFlex fireplace or liner hasn’t been inspected in the last year, don’t wait until the first cold night. Call (855) 341-8132 for a free estimate. We’ll put a camera in your flue, show you what we find, and fix what needs fixing.
Written by Len Castorena, Owner at Lantern Chimney Sweep, serving Pomona since he first climbed a local roof nearly three decades ago.