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 Fontana, CA | Ontario Chimney
We provide independent DuraFlex chimney cleaning and repair service across Fontana, and the work here looks different than it does in neighboring cities like Bloomington. Fontana’s postwar tract homes, most built between the 1950s and 1980s for Kaiser steel-mill families, came with fireplaces that saw light use and even lighter maintenance, so what we find inside a DuraFlex flue on the south side is rarely routine soot. It’s usually glazed creosote, seized dampers, and caps that gave up years ago but nobody noticed. Call (833) 467-7685 for a free estimate, and we’ll tell you exactly what you’re working with.
For the full picture of what we do with these systems, see our DuraFlex sales & service page. We cover every Fontana ZIP code: 92334, 92335, 92336, and 92337.
Why Fontana Residents Choose Us for DuraFlex Service
DuraFlex prefab fireplaces and liners have their own hardware, clearances, and failure patterns. A universal chimney sweep can run a brush through the flue and call it done. That’s not enough when the damper pivot pins are rusted solid, the cap is cracked from twenty years of Santa Ana wind cycling, and the liner was installed without insulation in 1978. We stock the correct replacement caps, dampers, and liner sections for these systems instead of forcing a generic part into place, and we’ll show you the evidence before recommending anything.
Al Vickers has spent the better part of three decades working on Inland Empire chimneys, and the Fontana tract stock is a study in what happens when a fireplace is decorative for forty years and then asked to perform. Our crews understand the difference between light soot and Stage 3 glazed creosote, and we don’t recommend work the flue doesn’t need. If you’re in Fontana and want someone who knows these specific fireplaces, call (833) 467-7685. We’ll tell you what we found, show you the evidence, and give you options. For a look at where we work, visit our Fontana service area page.
Styles & brands we work with
Common DuraFlex Chimney Cleaning Problems We Solve in Fontana
These are the failure modes we see most often on DuraFlex systems in Fontana. Each one has a specific local cause, and each one changes how we approach the cleaning and repair.
- Glazed creosote on uninsulated original liners. DuraFlex liners from the 1970s and 80s in Fontana were often installed without insulation. When the fireplace is used only on cold winter nights, the intermittent heating creates soft, glazed creosote that hardens on the stainless walls. It requires mechanical removal and a trained eye to identify, not just a routine sweep.
- Cracked or detached DuraFlex caps from Santa Ana wind cycles. The hot, dry summers in Fontana crack plastic and fatigued metal, and the winds do the rest. A cracked cap lets desert dust and debris pour into the flue, where it mixes with creosote and accelerates corrosion at the liner seams.
- Seized damper assemblies in south Fontana tract homes. In the 92335 and 92337 ZIP codes especially, we routinely find DuraFlex prefab fireboxes with rusted damper pivot pins that haven’t moved in decades. The homeowner never noticed because the fireplace was lit a handful of times per year. A seized damper won’t open for a fire, and it won’t seal against drafts when it’s closed.
- Inadequate clearance to combustibles in original installations. The DuraFlex TF21 and TF24 firebox units installed in 1960s and 70s Fontana homes were sometimes set with clearances that would fail today’s code. It’s the kind of thing that only shows up on a Level 2 inspection, and it’s the reason we push for one on any older unit before burning season.
- Debris-blocked spark arrestors packed with Fontana dust. The fine desert dust that settles into Fontana during dry spells doesn’t just sit on cars. It packs into spark arrestors, blocks air flow, and creates a draft problem that gets misdiagnosed as a flue blockage. Cleaning it out is straightforward once you know it’s there.
DuraFlex Service in Fontana: What Local Conditions Mean for Your Equipment
Fontana’s older south-side tracts, the 92335 and 92337 areas built for Kaiser steel-mill workers, have a specific problem that neighboring cities with newer stock like Rialto don’t share. These single-story stucco homes were put up fast, and the DuraFlex prefab fireplaces inside them were installed with clearances that were acceptable then but wouldn’t pass today’s code. The families who bought these houses used the fireplaces rarely, a few cold nights each winter, which means the original uninsulated liners and damper assemblies sat untouched for decades. The creosote that formed wasn’t the flaky stuff you get from heavy burning; it was the soft, glazed kind that forms when fires are intermittent and the flue never gets hot enough to burn anything off. On a street like Sierra Avenue, where homes date to the 1960s, we’ve pulled DuraFlex caps that cracked from years of thermal cycling, only to find the spark arrestor packed with desert dust and the damper pivot pins corroded beyond movement. The homeowner had owned the place since 1985 and never had the fireplace inspected. That’s not an unusual story in Fontana. It’s the norm, and it’s why we treat every older DuraFlex system here as a candidate for a Level 2 inspection rather than a quick sweep. A clean flue isn’t a luxury, it’s just how the thing is supposed to work.
DuraFlex Models & Products We Service in Fontana
We work on the DuraFlex equipment most commonly found in Fontana homes, including the 304 Stainless Steel Reline Kits in 6-inch and 8-inch diameters, the Direct Vent Termination Caps and Flashing Kits, and the TF21 and TF24 factory-built fireboxes installed in so many 1970s and 80s tract houses. We also service the Insulated Flex Liner with pre-installed damper assembly. When the original model is still supported, we source OEM DuraFlex replacement caps, dampers, and liner sections. For obsolete sizes where OEM parts are no longer made, we use quality aftermarket stainless components that match the original specifications. Before recommending a reline, we’ll always check whether a cap, damper, or crown repair can safely extend the life of the unit, because telling you to spend thousands when a $400 cap fixes the problem is how contractors lose their reputation.
See the difference
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AfterDuraFlex Service Pricing in Fontana
DuraFlex chimney cleaning in Fontana typically falls between $189 and $389, depending on the condition of the flue and whether it’s the first cleaning in decades. A Level 2 inspection, which we recommend for any older Fontana home before burning season, runs $250 to $500 including the camera work and photo report. If the liners or firebox need repairs, cap replacement is generally $195 to $450 depending on the model, and damper repair or replacement runs $225 to $575. What drives the cost here is the condition these systems sit in: glazed creosote is harder to remove than flaky soot, and seized dampers take more labor than a quick adjustment. Our free estimates include a camera inspection and a photo report, so you’ll see exactly what we’re proposing. Call (833) 467-7685 for an exact quote, and we’ll give you a number you can plan around.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana area and know this community well, including nearby Glen Avon. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Fontana
Yes, and here’s why: Fontana homes from that era, especially in the 92335 and 92337 ZIP codes, were often built with fireplace clearances that wouldn’t pass today’s code, and the units have typically sat unused for years. A Level 2 inspection uses a camera to check the flue, the firebox clearance, and the damper assembly before you light a fire. If you’ve never had one done, the $250 to $500 is cheap compared to finding clearance problems after a fire. Call (833) 467-7685 to schedule yours.
Fontana sits where the desert dust comes through, and the Santa Ana winds push fine particles across the south side all through fall. If your DuraFlex cap has hairline cracks from years of thermal cycling, that dust gets pulled into the flue and packs the spark arrestor. We replace the cap with an OEM DuraFlex multi-flue model when the original is cracked, which stops the dust at the top instead of letting it pile up inside. Call (833) 467-7685 and we’ll take a look.
In most cases, we can free and lubricate the damper or replace the pivot pins without touching the firebox. The rusted damper assemblies we see in Fontana tract homes usually respond to mechanical freeing plus new hardware, and the fireplace itself is fine. We’ll tell you if replacement is the only option, but it rarely is. Call (833) 467-7685 for an inspection and we’ll show you what’s stuck.
It’s more common here than in cities where fireplaces are used heavily. Fontana’s intermittent burning pattern, a few cold nights per winter, produces fires that never get the flue hot enough to burn off creosote. The result is soft, glazed buildup that hardens over time and requires mechanical removal. If your DuraFlex liner is uninsulated and original, which many in Fontana are, the problem compounds. Call (833) 467-7685 and we’ll assess what’s built up inside.
We stock OEM DuraFlex replacement caps, dampers, and liner sections for models that are still supported. When the original parts are obsolete and no longer manufactured, we use quality aftermarket stainless components that match the original specs. We won’t force a universal part onto a DuraFlex system that was built for something specific. Call (833) 467-7685 and we’ll tell you which category your fireplace falls into.
Service Areas Near Fontana
We serve Fontana and the surrounding Inland Empire cities, including Ontario, Rancho Cucamonga, Upland, Montclair, and Chino. For DuraFlex work on the other side of the county, see our DuraFlex service in Walnut and DuraFlex service in Sunnyslope pages.
Book Your DuraFlex Service in Fontana Today
If your Fontana or Pedley home has a DuraFlex fireplace or liner that hasn’t been looked at in years, now’s the time. Call (833) 467-7685 for a free estimate, and we’ll get you on the schedule before the next cold snap. We’ll show you what we find, recommend only what the flue actually needs, and leave you with a chimney that works the way it should.
Written by Al Vickers, Owner at Ontario Chimney, serving Fontana and the Inland Empire for decades.