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
We clean, inspect, and repair DuraFlex chimney systems throughout Pomona, from 91766 up through 91768, and we also offer La Verne DuraFlex service for homes just west of here. DuraFlex liners and caps hold up well here, but the combination of Santa Ana wind cycles and older 1940s-era clay-tile flues creates specific failure patterns we see every season. If your DuraFlex system is drafting poorly or smoking back, call (833) 467-7685 and we’ll tell you what’s actually going on inside the flue, not what a generic checklist says should be wrong.
Ontario Chimney is an independent DuraFlex service provider, not a manufacturer-authorized shop. That distinction matters more than you’d think: we work on the full range of DuraFlex components every week without sales quotas pushing us toward a replacement when a repair is the honest call. We also know what Pomona’s dry heat and wind cycles do to these systems over time, which is why our DuraFlex sales & service work starts with what we actually see in the flue.
Why Pomona Residents Choose Us for DuraFlex Service
A lot of chimney companies will sweep a flue and call it done. We won’t, because DuraFlex systems in Pomona fail in predictable ways that a basic sweep misses entirely. Flex liner connectors loosen at the top plate. Multi-flue caps clog with soot and debris. Dampers seize from heat stress in old fireboxes. Those are the problems homeowners actually have, and they’re the ones we solve.
Al Vickers, who owns Ontario Chimney, learned building systems and combustion at Chaffey College before spending the better part of three decades working on chimneys across the Inland Empire. He’s direct about what a flue actually needs versus what it doesn’t, and that’s the standard our techs work to on every Pomona job. When a DuraFlex liner is sound, we clean it and re-seat the connectors. When it’s not, we show you the camera footage and explain exactly what the repair involves before any work begins.
We source DuraFlex-compatible OEM and high-quality aftermarket caps, dampers, and liner connectors. We match the part to your existing install rather than forcing a full replacement, and we stock what Pomona homes commonly need so we’re not waiting on a distributor when your fireplace is out of commission mid-winter.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common DuraFlex Chimney Cleaning Problems We Solve in Pomona
- Separated flex liner connectors at the top plate. Santa Ana winds shake rooftop components year after year, and thermal cycling works the connector loose. The result is draft loss and smoke spillage that gets worse on windy evenings. We re-seat and clamp these connectors instead of suggesting a new liner when the liner itself is sound.
- Glazed, hardened creosote on liner walls. Pomona’s long dry season means months between burns, and creosote doesn’t stay powdery when it sits in heat and wind cycles. It glazes over, hardens, and becomes much harder to remove with standard brush sweeps. We use mechanical methods and chemical treatments suited to glazed deposits, which matters for preventing chimney fires in heavily used fireplaces.
- Clogged or corroded multi-flue caps. In gusty fall weather, caps collect soot, debris, and wind-driven dust faster than most people realize. A partially blocked cap restricts draft and can send smoke back into the room. We pull the cap, inspect the screen condition, and replace it when corrosion has thinned the metal to the point where a good Santa Ana gust will finish the job.
- Seized or warped dampers in retrofitted fireboxes. Pomona has a lot of 1940s-era fireboxes that were retrofitted with DuraFlex components. The original damper housing doesn’t always accommodate the new liner gracefully, and years of heat stress warp the hinge assembly over time. We replace damper sections and adjust the seating so the assembly closes fully when you’re not burning.
- Cracked clay tile behind the DuraFlex liner, invisible from the hearth. This is the one that catches homeowners off guard. The liner looks fine from below, but the original clay tile surrounding it has cracked from decades of hot fires and Santa Ana-driven temperature swings. The only way to see it is a camera inspection from the top. We do that on every service call, not just when something’s visibly wrong.
DuraFlex Service in Pomona: What Local Conditions Mean for Your Equipment
Pomona sits in the foothills of the San Gabriel Valley, and the Santa Ana winds that sweep down from the mountains in fall and winter aren’t just a nuisance - the same conditions affect our Covina DuraFlex service calls to the west. They drive ember showers into older roofing and chimney assemblies, and they create pressure differentials that test every seal in your venting system. Combine that with a housing stock dominated by 1920s-1950s bungalows and Spanish Revival homes in 91766 through 91768, and you get a specific pattern: DuraFlex liners retrofitted into original masonry flues where the surrounding clay tile has cracked from decades of thermal stress.
Here’s the part that matters for DuraFlex owners specifically. When the original clay tile cracks behind a flex liner, the liner isn’t compromised directly, but the crack changes how heat moves through the flue assembly. It creates drafts behind the liner, accelerates creosote accumulation in dead air spaces, and can cause the liner to shift subtly over repeated heating and cooling cycles. A standard sweep from the hearth never catches it. A camera from the top does. That’s why our Level 2 inspection is standard procedure on Pomona jobs where the liner was retrofitted into an older masonry flue. We’ve pulled liners out of 1940s fireplaces in neighborhoods like Lincoln Park and found the original tile in pieces behind them, with a liner that looked perfectly serviceable from below.
DuraFlex Models & Products We Service in Pomona
Our techs work on the full DuraFlex range: stainless flex liner kits, ProFlex flexible chimney liner systems, multi-flue and custom caps, and prefab fireplace chimney components including dampers and liner sections. We don’t specialize in one product line and guess at the rest. When you have a DuraFlex cap that needs a new screen or damper section, we identify the model by sight and source the correct replacement part rather than adapting whatever’s on the truck.
For fast turnaround in Pomona, we keep common DuraFlex-compatible cap screens, damper hinges, and liner connectors stocked locally. If your fireplace is down in December, you don’t want to hear that the part is three weeks out. We handle that by anticipating what Pomona’s older housing stock actually needs and having those components ready before the call comes in.
See the difference
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After
Before
After
Before
AfterDuraFlex Service Pricing in Pomona
Chimney sweeping for a standard fireplace with a DuraFlex liner in Pomona typically runs $180 to $300 depending on the condition of the liner and how much glazed creosote has built up. A Level 2 camera inspection, which we recommend for any retrofitted system in the older Pomona housing stock, adds roughly $150 to $250. Cap replacement runs $200 to $450 depending on the model and whether we’re matching an existing DuraFlex cap or upgrading to a multi-flue design. Liner section replacements vary widely based on what the camera actually shows.
Every estimate starts with a camera inspection so you know exactly what you’re approving. We don’t quote a number over the phone and then find “additional issues” once we’re on site. Call (833) 467-7685 and we’ll walk you through what the inspection covers, what it costs, and what we’d expect to find in a Pomona home built in the 1930s through 1950s.
Serving Pomona, CA - Our Local Coverage Area
We’re based in the Pomona 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 Pomona
You need the Level 2 inspection. The original clay tile surrounding the liner in homes of that era cracks at a predictable rate from thermal stress, and the only way to verify the liner’s condition is with a camera from the top. A sweep cleans the interior of the liner, but it won’t show you what’s happening around it. We include this camera pass on every Pomona home where we know the liner was retrofitted into an older flue, at no extra charge for the basic assessment.
In almost every case, the cap screen or the flex liner connector at the top plate is the culprit. Santa Ana winds push air down the flue and expose any small gap or blockage. A partially clogged cap amplifies the effect. On a recent job in the Lincoln Park area of 91766, our tech pulled a DuraFlex cap off a 1940s bungalow and found the flex liner connector had separated from the top plate, with original clay tile cracked behind it - a pattern we also see on DuraFlex repair in Claremont homes of the same era. We re-seated and clamped the connector, installed a new multi-flue cap, and swept the hardened creosote off the liner walls before closing it up. The draft was steady after that. This is a diagnosis we give often enough that it’s the first thing we check on windy-evening smoke complaints. Call (833) 467-7685 and we’ll schedule the inspection.
Once a year if you burn regularly through the winter months, and more often if you burn softwoods or use the fireplace as a primary heat source. Pomona’s long dry season means creosote sits in heat and wind cycles for months at a stretch, which glazes it over and makes it harder to remove the longer it sits. Annual sweeping prevents the glaze from forming in the first place. If it’s been more than two years, expect a more involved cleaning and possibly chemical treatment for hardened deposits.
Yes, and this is one of the repairs we do most often. When the connector separates from the top plate but the liner itself is intact, we re-seat the connection and clamp it securely. Replacing the whole liner would be a waste of money in that scenario, and we won’t recommend it. Where the liner has separated from more than the connector, or shows signs of cracking, we’ll show you the camera footage and explain why a full reline or section replacement is the honest call.
It can. Stucco conceals the crown and flashing details that would otherwise show visible cracking or water intrusion at the roofline. What we typically find on Spanish Revival homes in Pomona is a crown that’s been quietly deteriorating behind the stucco while the cap and liner above it stay outwardly functional. The fix is usually straightforward once we can see the crown condition from the top, but the problem does tend to go unnoticed until a chimney inspection reveals it. If you haven’t had the crown and cap looked at in a few years, call (833) 467-7685 and we’ll give you an honest read on what’s actually there.
Service Areas Near Pomona
We serve Pomona and the surrounding Inland Empire foothills, including Ontario, Upland, Montclair, Chino, Rancho Cucamonga, and Claremont. Our Pomona service area coverage extends across all four ZIPs. For homeowners just north of the 210, we offer DuraFlex service in San Antonio Heights. And for those closer to the 71 corridor, we provide DuraFlex service in Los Serranos.
Book Your DuraFlex Service in Pomona Today
A clean flue isn’t a luxury, it’s just how the thing is supposed to work. If your DuraFlex system is drafting poorly, smoking back, or simply overdue for a sweep, call (833) 467-7685. We’ll get you on the schedule and give you a straight answer on what’s happening inside your chimney, with the camera evidence to back it up.
Written by Al Vickers, Owner at Ontario Chimney, serving Pomona and the Inland Empire since the early 1990s.