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 Upland, CA | Lantern Chimney Sweep
DuraFlex chimney cleaning in Upland comes down to one thing most companies miss: what Santa Ana winds leave behind inside your liner. We’re an independent DuraFlex service provider, not a manufacturer affiliate, and we sweep, inspect, and repair these stainless steel systems across 91784, 91785, and 91786. If your flue is packed with foothill debris or the liner’s showing its age, call (855) 341-8132 for a straight assessment and a free estimate.
Why Upland Residents Choose Us for DuraFlex Service
We know how DuraFlex liners behave here because we’ve pulled apart enough of them after wind events to recognize the failure patterns. Len Castorena grew up in the Pomona Valley and has spent the better part of three decades on chimneys and fireplaces in the homes he knows best, and that local familiarity matters when you’re deciding whether a liner is worth saving or needs relining. We stock genuine DuraFlex OEM caps, connectors, and top plates for faster turnaround in Upland, and when OEM is discontinued or priced out of reach, we’ll tell you and use a quality aftermarket part instead. The point is you get an honest condition report, not a scripted pitch. Our full DuraFlex sales & service capability means one crew diagnoses and handles the repair, no handoff to a second company.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Upland
Most Upland DuraFlex service calls fall into a few predictable patterns tied to where the house sits and how the liner was originally installed. Here’s what we actually find:
- Wind-packed debris at the liner top and cap. After a Santa Ana blow off the San Gabriels, the top of a DuraFlex liner near the foothill edge collects dried leaves, grit, and twigs that never touch the firebox. Result: smoke rolling into the room on the first burn of the season.
- Liner corrosion and pinholes on older masonry fireplaces. Upland’s mid-century ranch homes and older detached houses often have original masonry fireplaces that sat idle through long, hot inland summers. Moisture and creosote sit inside the DuraFlex flexible liner, and years of that cycle eat pinholes through the stainless wall.
- Cap and top-plate damage after high-wind events. Gusting wind bends caps, tears top plates loose, and leaves the flue open to water and debris. In 91784 and the mountain-facing edge of Upland, cap damage is a check-first item after every wind event, not an afterthought.
- Liner seating failures at the appliance collar. Where original masonry flues were relined years ago, the connection between the DuraFlex liner and the appliance collar loosens over time. We find gaps that leak flue gas and pull smoke into living spaces.
- Long-idle blockage from dry summer months. Chimneys in Upland sit unused from late spring through early fall. Then the first cool morning arrives, homeowners fire up the insert, and whatever settled or nested in that idle flue becomes a smoke-back problem in a hurry.
DuraFlex Service in Upland: What Local Conditions Mean for Your Equipment
Here’s the thing about Upland that down-basin cities don’t deal with: a DuraFlex liner that looks clean from the firebox can still be blocked at the top. The foothill edge, especially the 91784 area north of the 210, catches a heavier wind-blown leaf-and-grit load than anywhere in Pomona or Chino after a Santa Ana event. Dried leaves and fine grit pack into the annular space and pile against the cap, and because the liner runs smooth and shiny below the blockage, a homeowner peering up from inside sees nothing wrong. That’s exactly why we push a genuine Level 2 inspection on foothill-edge Upland homes before the first cold-weather burn. A visual look from the firebox isn’t enough here, and anyone telling you otherwise hasn’t spent enough time on Upland rooftops in October. One call we took near the foothill edge in 91784 was a textbook case: smoke rolled into the room on the season’s first fire in a masonry fireplace with a DuraFlex flexible liner. Our tech found the cap packed with dried leaves and grit from a recent blow, plus a cracked cap, so we pulled the debris, ran a Level 2 inspection with a camera, and replaced the cap to restore proper draft before the next burn.
DuraFlex Models & Products We Service in Upland
We service the full DuraFlex residential lineup: the Stainless Steel Flexible Chimney Liner relining kits, Pro Series flexible liners, DirectVent and venting components for gas appliances, and the rigid and flexible relining accessories including tees, caps, and top plates. Our parts stance is simple: genuine DuraFlex OEM liner, cap, and connector components wherever they’re still available, because tolerances and listings stay intact. Where OEM is discontinued or the price makes no sense, we’ll tell you before using a quality aftermarket alternative. For Upland homeowners, that means no surprise parts and no waiting weeks on a special order. If the liner is sound, we clean and re-seat it. If it’s corroded, pitted, or sized wrong for the appliance, we say so plainly and recommend relining rather than patching a failing liner.
See the difference
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After
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AfterDuraFlex Service Pricing in Upland
DuraFlex chimney cleaning in Upland runs roughly $189 – $289 for a standard sweep on an accessible rooftop, while a Level 2 inspection with camera adds $125 – $215 depending on liner condition and access. Cap replacement typically lands between $185 – $320 including parts and labor, and if the liner itself needs relining, a complete DuraFlex relining job runs $1,800 – $3,200 depending on flue height, liner diameter, and roof pitch. What drives the price here is access, foothill slope, and how much wind debris has to be cleared before inspection can even begin. A free estimate means we look first, then tell you the number. Call (855) 341-8132 for a quote specific to your house.
Serving Upland, CA — Our Local Coverage Area
We’re based in the Upland 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 Upland
In most fall smoke-back calls we run in Upland, the cause is wind-driven debris packed at the top of the liner or a damaged cap from a Santa Ana event, not a liner failure lower down. The fix is a Level 2 inspection to see what’s actually blocked before you burn again. Call (855) 341-8132 and we’ll get eyes on it.
Pitting usually means the stainless wall has begun corroding from moisture and creosote sitting through long idle summers. Cleaning removes the surface buildup, but if pinholes are already through the liner wall, sweeping alone won’t restore it. We’ll camera the flue and tell you plainly whether it’s cleanable or due for relining. Call (855) 341-8132 for an exact answer on your liner.
Bent caps can sometimes be re-shaped, but if the metal is torn at the mounting points or the top plate is loose, replacement is the right call. We stock DuraFlex OEM caps for faster Upland turnaround and will match the cap to your liner diameter. Call (855) 341-8132 for a quick assessment.
For Upland homes under regular foothill wind exposure, we recommend a Level 2 inspection at least once a year, ideally after the first major Santa Ana event of the season. If you burn frequently or see moisture staining, twice a year isn’t excessive. Call (855) 341-8132 to schedule.
Upland’s hot, dry summers allow creosote and moisture from previous burns to bake onto the liner walls, which accelerates corrosion on older systems and makes fall startup more prone to blockage from anything that settled during the idle months. A pre-season sweep and inspection addresses both.
Service Areas Near Upland
Lantern Chimney Sweep serves Upland and the surrounding foothill communities, including Pomona, La Verne, Claremont, Montclair, and Chino. For neighbors just west in the San Gabriel Valley, we also offer DuraFlex service in Walnut and DuraFlex service in Covina. You can see the full Upland service area for all streets and ZIP codes we cover.
Book Your DuraFlex Service in Upland Today
If your DuraFlex chimney is overdue for a sweep, or you’ve felt a Santa Ana gust and wondered what it left in your flue, call (855) 341-8132 today. We’ll set up a time, come out, and tell you what we found, and what actually needs doing about it.
Written by Len Castorena, Owner at Lantern Chimney Sweep, serving Upland and the Pomona Valley since 1993.