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 | Chestnut Chimney Sweep
We provide independent DuraFlex chimney cleaning and service across Pomona, including our Chimney Sweep in Pomona covering the older bungalow blocks in 91766 and 91767 where decorative fireplaces sit unused for years. What makes our DuraFlex work here different is that we’re usually clearing squirrel and bird nests out of cap screens and repairing cracked crowns before a liner even needs a sweep. We’re not factory-authorized, and that’s the point: we diagnose what your specific liner and cap actually need. Call (855) 360-4975 for a free estimate.
Why Pomona Residents Choose Us for DuraFlex Service
We’ve spent years pulling, sweeping, and re-crowning DuraFlex stainless liners and caps across the Pomona Valley, including Covina DuraFlex service, so we know how their alloy and cap hardware behaves after a decade of dry summers and short, wet winters. Roland Cifuentes grew up near the Foothill Boulevard corridor in Rialto and has spent nearly two decades working chimneys across the Inland Empire, including plenty of Pomona’s 1900-1940 Craftsman and Spanish Revival bungalows. Roland got into the trade partly because his father-in-law’s chimney nearly caused a house fire, and partly because he liked the idea of a job where the results are real and the customer sleeps better that night.
We stock genuine DuraFlex caps, top plates, and connectors for direct fit. That means we’re not ordering parts after we open your chimney and finding out what’s wrong. We show up with what the common Pomona failure modes actually require. Independent service also means we won’t push a full reline when your liner is sound. If we can clean it, re-seat it, and re-cap it, that’s what we do. Learn more about our DuraFlex sales & service.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Pomona
- Crushed or pushed-in cap screens. In the older 91766 and 91767 bungalow blocks near downtown, squirrels and birds work the stainless cap screens until they bend or tear. Once that screen fails, nest material drops straight into the flue and packs against the liner. We pull the nest, replace or re-seat the screen, and verify the liner below is clear.
- Loose or rusted top plates and cap screws. Pomona’s Santa Ana winds carry dust and grit all summer, and those dry blasts find every loose connection at the crown. When top-plate screws back out or rust through, winter rain gets into the liner annulus between the stainless and the clay tile. We re-seat the top plate, replace hardware with stainless, and seal the gap before the first December storm.
- Corroded connectors and appliance adapters. Fireplaces that sit decorative for years still draw moisture through the flue during winter. At the damper and firebox throat, the connectors between the liner and the appliance loosen and corrode. We inspect those connections during every DuraFlex cleaning in Pomona and re-torque or replace them as needed.
- Kinked flex sections in offset clay-tile flues. Many Pomona bungalows have original clay flue tiles with slight offsets through the masonry. A DuraFlex flex section can sag or kink if it wasn’t pulled correctly or the tile shifted. A kink traps soot and nest debris instead of letting it fall to the firebox. We detect that during a camera inspection and correct it without unnecessary relining.
- Cracked crowns leaking onto the cap and top plate. This is the big one in Pomona. The hot, dry San Gabriel Valley summers followed by short winter rains mean the masonry crown gets baked and cracked. Water runs through the crown, onto the cap hardware, and down the liner annulus. We repoint, seal, and re-crown so the cap and liner stay dry.
DuraFlex Service in Pomona: What Local Conditions Mean for Your Equipment
The thing about Pomona’s older 91766 and 91767 bungalow blocks near downtown is that these chimneys aren’t building up creosote the way a heavily used fireplace in a cold climate would. Most of these fireplaces are decorative now, or get lit a couple times a year. That means the real DuraFlex problem here is nest debris and cracked crowns, not soot. A squirrel packs a nest against the cap screen, the crown cracks during a long dry summer, and then the first winter storm sends water straight down the flue onto the top plate and liner. We’ve seen it happen on the first decent rain of December, year after year.
What that means for DuraFlex owners specifically is that cleaning alone won’t fix the problem. You need an inspection that catches the crown before it leaks. The firebox may look fine on the inside while the masonry above is quietly failing. In Pomona, a DuraFlex service call should always include looking at the crown, the cap screws, and the top plate, not just running a brush up the flue. That’s how we work. See our Pomona service area for the ZIP codes we cover.
DuraFlex Models & Products We Service in Pomona
We work on the full DuraFlex lineup that shows up in Pomona homes. That includes DuraFlex SW single-wall flexible stainless relining kits, DuraFlex Pro double-wall flexible stainless liners, DuraFlex Deluxe stainless caps in both single- and multi-flue configurations, and DuraFlex rigid stainless liner sections for straight masonry flues. For replacement parts, we carry genuine DuraFlex caps, top plates, and connectors so the fit is exact and the hardware matches what’s already installed. Where a quality aftermarket stainless component meets or beats the OEM spec, we’ll use it and tell you why. The point is the right part for your system, by name, not whatever’s on the truck.
See the difference
Before
After
Before
After
Before
AfterDuraFlex Service Pricing in Pomona
A standard DuraFlex chimney cleaning in Pomona typically runs $180 to $340, depending on flue height, liner condition, and whether we’re pulling nest material. Cap replacement adds $200 to $500 with the part. Mortar repointing around the crown runs $250 to $650, depending on how much of the crown edge has crumbled. A Level 2 camera inspection is $150 to $300 and is worth it on any Pomona chimney that hasn’t been looked at in years. Our free estimate includes a visual check of the cap, crown, and firebox, and we walk you through what we find before recommending any work. Call (855) 360-4975 for an exact quote.
Serving Pomona, CA — Our Local Coverage Area
We’re based in the Pomona area and know this community well, with DuraFlex repair in Walnut also available nearby. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Pomona
Almost always squirrels or birds that have gotten past a damaged or missing cap screen and nested between the cap and the liner. In the 91766 and 91767 bungalow blocks, we pull these nests out constantly. We clear the flue, inspect the liner for damage, replace the screen, and usually recommend a multi-flue DuraFlex cap if the existing one is undersized. Call (855) 360-4975 and we’ll take a look.
Yes, probably more than a heavily used fireplace does. A fireplace that sits unused for years is the one that collects nests, cracked crowns, and corroded top plates without anyone noticing. A Level 2 camera inspection catches those hidden issues before the first winter rain does. We include inspection recommendations with every Pomona service call and can arrange DuraFlex repair in Claremont as well.
In most cases, yes. If the liner is sound and the problem is a crushed screen, rusted screws, or a top plate that’s pulling away from the crown, we replace the cap and hardware and leave the liner alone. We only recommend relining or rebuilding when the liner or the clay tile behind it is actually compromised, and we show you the camera footage before you spend a dollar.
Yes, and we recommend doing it sooner than later. Pomona’s dry summers bake the crown until the mortar lets go, and once the winter rains arrive, water runs straight into the cap and liner. Repointing the crown edge and sealing it takes less than a day on most bungalows and costs far less than repairing water damage inside the flue. Call (855) 360-4975 before December.
No. We’re an independent DuraFlex service provider. That means we don’t take direction from the manufacturer on what to recommend, and we don’t sell a factory replacement just because it’s the brand on the box. We stock genuine DuraFlex parts because they’re good parts, but we diagnose what your liner and cap actually need and show you the evidence before any work is approved.
Service Areas Near Pomona
We cover Pomona’s 91766, 91767, 91768, and 91797 ZIP codes and regularly work in the surrounding Pomona Valley communities. If you’re in Rialto, Bloomington, Muscoy, Fontana, or Colton, we can schedule a DuraFlex inspection at your home. We also offer DuraFlex service in Hesperia and DuraFlex service in La Verne for customers further east or north of Pomona.
Book Your DuraFlex Service in Pomona Today
If your Pomona chimney has been sitting unused and you’re not sure what’s inside it, that’s reason enough to call. We’ll do a free visual estimate, tell you straight whether you need a sweep, a re-cap, or a repoint, and quote the work before we touch it. Call (855) 360-4975 today. A clean flue is a quiet house – that’s really all there is to it.
Written by Roland Cifuentes, Owner at Chestnut Chimney Sweep, serving Pomona and the Pomona Valley.