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 | Ashwood Chimney Sweep
We clean, inspect, and repair DuraFlex chimney systems throughout Upland, from the Craftsman homes off Euclid Avenue to the foothills tracts in 91784. One thing separates our DuraFlex work here: we routinely see two-material flues, original clay tile wrapped around a later stainless retrofit, and we inspect both layers before the first cold snap. If your DuraFlex liner or prefab fireplace needs service in Upland, call (833) 805-3229 for a free estimate.
Ashwood Chimney Sweep is an independent DuraFlex service provider. Not manufacturer-affiliated, not authorized, not tied to any warranty program. That matters because we tell you what the flue actually needs, not what a warranty checklist says. Norm Castillo leads our crew, and he’s been working chimneys and venting systems across the Inland Empire for close to two decades. We service the full DuraFlex component stack, stainless liners, termination caps, damper assemblies, and prefab fireplaces, as it actually ages under real use. For full brand background, see our DuraFlex sales & service page.
Why Upland Residents Choose Us for DuraFlex Service
Most sweep crews can run a brush through a flue. Fewer can diagnose a shifted liner joint, a corroded section, or a seized damper on a DuraFlex system and then fix it the same visit. We do both. Our Upland service area coverage means we’re already familiar with the housing stock here, the old brick chimneys near downtown, the mid-century ranch inserts, the newer prefab units in the foothills.
We repair with the same materials professional contractors specify. When a DuraFlex liner needs a section replaced, we match the correct stainless component. When a cap screen is clogged beyond cleaning, we replace it with a compatible DuraFlex or equivalent professional-grade cap. We don’t improvise. Norm grew up off Sierra Avenue in Fontana and cut his teeth in Chaffey College’s HVAC and building systems program before narrowing his focus entirely to chimneys, flues, and vents. He also handled DuraFlex in San Antonio Heights early in his career. That background shows in how we approach a DuraFlex system: clean, inspect, repair, in one call.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Upland
- Liner corrosion and pinhole thinning at the joints. In Upland’s older core, long cool-evening burn seasons plus green or partially seasoned wood build creosote fast. Summer humidity creeps into the flue and turns that creosote acidic, which eats at the stainless liner joints. We find the thinning during a camera inspection, before it becomes a smoke or fire problem.
- Termination cap and spark arrestor screen clogging. The Santa Ana wind corridor off the San Gabriel Mountains pushes dry ash, dust, and debris across Upland rooftops for months at a stretch. That material packs into DuraFlex cap screens, chokes the draft, and sends smoke back into the room. We clear the screen or replace the cap, then verify the draw.
- Damper and hinge hardware seizing. Mid-century ranch homes in Upland often have older DuraFlex insert assemblies where the damper hinge rusts or binds. You feel it as a damper that won’t close, or one stuck partway open letting warm air and embers leak up the flue year-round. We free it where possible, replace the hardware when needed.
- Insulation wrap breakdown and shifted liner sections. Foothills 91784 homes burn occasionally, so the DuraFlex system sits uninspected for years. Insulation wrap degrades, a liner section shifts, and nobody notices until a smoke-back event during a rare fire. We see this pattern regularly in newer foothills construction and catch it during routine cleaning.
- Creosote buildup in low-use fireplaces. Even a few cords a season in Upland’s dry climate can produce significant creosote by February, especially with softwood. It doesn’t take heavy use to create a fire hazard. We remove it down to the liner surface, not just the loose top layer.
DuraFlex Service in Upland: What Local Conditions Mean for Your Equipment
Here’s the Upland-specific reality we deal with that most markets never see. In the Craftsman and period-revival homes near the Euclid Avenue historic corridor, chimney systems often mix original clay-tile flues with later DuraFlex liner retrofits. The early-1900s brick chimney is still there, and so is the clay tile inside it. But somewhere along the way, someone slid a DuraFlex stainless liner down through it. Now you have two materials aging at different rates: the clay tile cracking from decades of summer heat and winter fires, and the stainless liner corroding or shifting inside it. A standard visual inspection catches neither. This is why we push a Level 2 inspection with a camera on these homes, we verify both the old tile enclosure and the stainless liner inside it. That two-material check is almost unique to Upland. Skip it, and you can have a perfectly good-looking exterior hiding a flue that’s failed on both layers.
We saw this play out on a tree-shaded street off the Euclid corridor. A homeowner called about smoke rolling back into the living room from a DuraFlex liner retrofit inside an early-1900s brick chimney. Our tech ran a Level 2 inspection and found the liner’s lower joint had shifted and the termination screen was packed with dry ash and debris. We reset and secured the section, cleared the screen, and replaced the cap, similar to a DuraFlex repair in Claremont we completed last season. The fire drew cleanly again. Then we flagged the surrounding clay tile for a follow-up crack check before winter. That’s how we work: fix what’s failing now, document what’s failing next.
DuraFlex Models & Products We Service in Upland
We service the core DuraFlex product families found in Upland homes: GalvaLume stainless relining kits, prefab wood-burning fireplace systems, flexible stainless chimney liner and insulation kits, and fireplace insert connectors and termination caps. Our parts approach is straightforward. We use OEM DuraFlex components where they’re available, and quality aftermarket equivalents when they aren’t. Never a mismatched part that compromises the flue. We keep common cap, liner section, and damper hardware readily sourced through professional-trade supply channels, which means faster turnaround for Upland repairs without waiting on retail shipping schedules. If the liner only needs a section or cap replaced, we repair it. If the flue has pinhole failures or collapsed insulation, we say so plainly and recommend replacement rather than chase a patch.
See the difference
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AfterDuraFlex Service Pricing in Upland
What you’ll pay depends on what we find, and we won’t know that until we look. Deep creosote removal takes longer than a light seasonal sweep. A cap replacement adds parts cost. A liner section repair is more involved than either. A free estimate gives you a fixed number before any work starts, and we never recommend work without camera evidence you can review yourself. If the liner can wait, we tell you it can wait. If it can’t, we show you the images that prove it. Call (833) 805-3229 and we’ll schedule a time that works for you.
Serving Upland, CA — Our Local Coverage Area
We’re based in the Upland area and know this community well, and we also provide DuraFlex service in Montclair. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Upland
Yes, and this is exactly the scenario we see most often near the Euclid Avenue corridor. A Level 2 inspection with a camera verifies both the original clay-tile enclosure and the stainless DuraFlex liner inside it. We check for cracks in the tile, pinholes or shifted sections in the liner, and corrosion at the joints. You get a photo report showing what we found. Call (833) 805-3229 to schedule an inspection before the burning season.
The Santa Ana winds drive ash, dust, and debris across Upland’s foothills ZIP codes for months at a stretch, and DuraFlex cap screens catch all of it. Once the screen packs shut, draft drops and smoke spills into the room. We can clear the screen, but if it’s a recurring problem we’ll recommend a cap design that handles the wind corridor better. Call (833) 805-3229 and we’ll take a look.
Annually, even with light use. Creosote builds from incomplete combustion regardless of how many cords you burn, and the dry Upland season combined with occasional use means systems sit uninspected for long stretches. Problems like a shifted liner section or degraded insulation get missed until a smoke-back event. A yearly sweep and inspection catches them early. Call (833) 805-3229 to get on the schedule.
Most sticking dampers on DuraFlex insert assemblies can be repaired, we free the hinge, clean the rust, and lubricate or replace the hardware as needed. Replacement is only necessary when the damper plate itself is warped or the hinge is broken beyond repair. We’ll tell you which one it is before any work starts. Call (833) 805-3229 for a free estimate.
Yes, we service the chase as part of the overall DuraFlex system. Upland’s dry heat and Santa Ana wind mean chase flashing and seals deteriorate faster than homeowners expect. We inspect for water intrusion, repair the flashing and seals, and address any rust or water staining before it reaches the fireplace or surrounding framing. Call (833) 805-3229 to schedule a full system check.
Service Areas Near Upland
We serve Upland and the surrounding Inland Empire communities, including Fontana, Bloomington, Rialto, Sunnyslope, and Glen Avon. If you’re just outside the city in any of these areas, we can schedule a DuraFlex cleaning or inspection. For work further south, see our DuraFlex service in Ontario page or DuraFlex service in Norco.
Book Your DuraFlex Service in Upland Today
A clean flue isn’t a luxury, it’s just the job done right. If your DuraFlex system in Upland needs cleaning, inspection, or repair—or you need DuraFlex in Rancho Cucamonga—call (833) 805-3229. We’ll schedule a visit, walk you through what we find, and give you a fixed price before any work begins. Ashwood handles the whole flue, not just the easy parts.
Written by Norm Castillo, Owner at Ashwood Chimney Sweep, serving Upland and the Inland Empire for close to two decades.