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 Claremont, CA | Glendale Chimney Sweep
We provide independent DuraFlex chimney cleaning and liner service across Claremont, including the historic Village tracts and mid-century southern neighborhoods, and also offer DuraFlex in Montclair. What makes our DuraFlex work here different is simple: we know how these liners behave inside Claremont’s old soft-brick chimneys when Santa Ana winds hit the foothills. If you’ve got a DuraFlex liner that’s smoking back or building creosote faster than it should, call (833) 467-6493 and we’ll diagnose it properly.
We’re an independent chimney service company, not a DuraFlex dealer. That matters. We spec DuraFlex components because they hold up, but we don’t have a manufacturer quota to meet. You get an honest read on whether a liner needs cleaning, repair, or replacement. No loyalty to anyone but the homeowner writing the check.
Why Claremont Residents Choose Us for DuraFlex Service
Noel Tarkanian, our owner, grew up in a 1950s craftsman with a fireplace that acted up every winter, so he learned early that chimney problems don’t fix themselves. He trained through the HVAC and sheet metal program at Glendale Community College before moving exclusively into chimney work, and he’s spent well over a decade diagnosing flue issues throughout the San Gabriel Valley.
That background matters for DuraFlex work specifically. A flexible stainless liner is only as good as the installation around it. The insulation wrap, the top plate, the cap, the connector joints. Get any of those wrong and you’re sweeping creosote out of places it should never collect. We understand how DuraFlex SW, Pro, and 316L alloy liners age inside older Claremont masonry, and we stock genuine DuraFlex replacement parts locally so your repair doesn’t stall waiting on a shipment. For more on our broader DuraFlex work, see our DuraFlex sales & service page.
Styles & brands we work with
Common DuraFlex Chimney Cleaning Problems We Solve in Claremont
- Insulation wrap shredded at the smoke-chamber offset. Older Claremont chimneys built with lime mortar shift over decades, and the offset between the firebox and the clay flue is where we most often find DuraFlex insulation wrap torn or compressed. Torn wrap means the liner exterior runs cold, creosote condenses into glaze, and a standard sweep alone won’t address the root cause.
- Top plate loosened by Santa Ana wind events. Homes at the base of the San Gabriels take repeated high-wind hits every fall and winter. The top plate and cap on a DuraFlex installation can work loose, opening a gap where rain and debris drop into the annular space around the liner. We find this on Claremont chimneys more than anywhere else we service.
- Connector joints losing their seal on gas conversions. Lots of mid-century ranch homes in southern Claremont had wood-burning fireplaces converted to gas inserts decades ago. The connector between the appliance and the DuraFlex liner can lose its seal, letting exhaust migrate behind the liner. That’s a carbon monoxide concern, not just a draft issue.
- Acidic condensate corroding the liner bottom on gas setups. When a gas conversion is tied into a liner sized for wood, the cooler exhaust produces acidic condensate that pools at the base. We see corrosion at the bottom section of otherwise healthy DuraFlex 316L liners. It’s fixable if caught early; it’s a liner replacement if ignored.
- Flue height too low for Santa Ana backdrafting. In the historic tracts near the Colleges, many original clay flues were never raised to modern heights. A DuraFlex liner dropped in without addressing termination height still smokes back when the wind reverses. Cleaning helps, but the real fix is checking liner height and cap style against the home’s exposure.
DuraFlex Service in Claremont: What Local Conditions Mean for Your Equipment
Here’s the thing about Claremont that doesn’t show up on most chimney websites. The historic homes near the Claremont Colleges were drafted for the prevailing onshore flow, the air movement that comes up from the coast. Those original low clay flues worked fine for decades because that’s the wind direction the builders counted on. But when a Santa Ana event rolls down from the San Gabriels, everything reverses. Air comes down the chimney, not up it. Smoke pushes back into the living room.
If you’ve got a DuraFlex liner in one of those older Craftsman or Spanish Colonial Revival homes, cleaning it is only half the job. We routinely check the liner termination height against the roof plane and the cap style against local wind exposure. A liner that’s clean but too short will still smoke back during the first strong northeast wind. That’s why our DuraFlex cleaning in Claremont includes a hard look at the top of the system, not just the flue walls. We also provide DuraFlex service in La Verne, but no other city we serve has this same concentration of pre-1940 masonry drafted for a wind pattern that reverses itself every autumn.
DuraFlex Models & Products We Service in Claremont
We clean, inspect, and repair the full DuraFlex line you’re likely to find in Claremont homes: the SW smooth-wall stainless relining kit, the Pro flexible stainless liner with insulation wrap, the 316L alloy flexible liner for wood and multi-fuel, and the rigid-and-flex hybrid system. Each one ages differently. SW liners show their wear at the offset. Pro liners live or die by their insulation wrap. The 316L is the workhorse, but gas conversions beat it up from the inside.
Our stance on parts is straightforward. Critical containment connections get genuine DuraFlex components: liner sections, top plates, caps, insulation wrap. Where an aftermarket part meets or exceeds the same alloy and gauge, we’ll use it and tell you we did. If a liner is intact and sized correctly, we clean it and re-secure what’s loose. We recommend replacement only when the alloy, insulation, or joints are genuinely compromised. You’ll see the condition yourself on the inspection report.
See the difference
Before
After
Before
After
Before
AfterDuraFlex Service Pricing in Claremont
DuraFlex chimney cleaning in Claremont typically runs $180 to $340 for a standard sweep on an accessible one-story or two-story home. If you need insulation wrap replacement at an offset, that adds $150 to $400 depending on how far down the damage goes. A new DuraFlex cap and top plate runs $120 to $350 installed. Full liner replacement, when genuinely necessary, spans $2,200 to $6,000 based on flue length, roof pitch, and liner diameter. A Level 2 inspection with camera, which we recommend for any older Claremont home with a liner, is $150 to $450.
Every job gets a camera inspection and photo report before we quote repair work. You see exactly what we see. Call (833) 467-6493 for a free estimate. If the liner’s clean and the cap’s tight, we’ll say so and book your next sweep.
Written by Noel Tarkanian, Owner at Glendale Chimney Sweep.
Serving Claremont, CA — Our Local Coverage Area
We’re based in the Claremont area and know this community well, and we also handle DuraFlex repair in Upland. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Claremont
Your liner is clean, but it’s probably too short for the wind exposure. Many chimneys in Claremont’s historic tracts near the Colleges were built with low clay flues drafted for onshore wind. When Santa Anas reverse the flow, air pushes down the chimney faster than the liner’s termination height can overcome. The fix is usually raising the liner termination and checking the cap style, not another sweep. Call (833) 467-6493 and we’ll assess the height against your roofline.
Yes, when the wrap is intact. We use brushes sized to the liner diameter and avoid the aggressive rotary heads that shred thin insulation. But if the wrap was already torn or compressed at the offset from the original install, the damage is done before we arrive. We’ll show you the condition on camera and quote the repair separately. Cleaning won’t make it worse; it’ll just expose what’s already there.
It does, and mostly at the bottom. Gas exhaust runs cooler than wood exhaust, so condensate forms inside the liner and collects at the base. Over time that acidic moisture corrodes the stainless from the inside. We also check the connector joint between the gas insert and the liner, because that seal fails quietly. A Level 2 inspection catches both issues before they become exhaust leaks. Call (833) 467-6493 to schedule one.
Because the liner lives inside a chimney nobody has seen the outside of. In older Claremont masonry, the original soft brick and lime mortar shift. Cracks form. Moisture gets in. A DuraFlex liner protects the flue path, but it doesn’t tell you what’s happening to the structure around it. A Level 2 inspection with a camera looks at both the liner interior and the surrounding chimney cavity. That’s the difference between finding a cracked tile and finding out about it when smoke starts backing into the house.
Over time, yes. We see loosened top plates on Claremont chimneys after a few solid Santa Ana seasons. The wind doesn’t rip them off; it vibrates them loose, and then water and debris find the gap. We check the cap and top plate on every DuraFlex cleaning, and we re-secure them before they fail. The fix is fast and cheap compared to what water entry does to a liner’s insulation. Call (833) 467-6493 to book a check before the next big wind.
Service Areas Near Claremont
Our DuraFlex service covers Claremont and the surrounding communities, including Claremont service area details for homeowners throughout 91711. We also work regularly in Glendale, La Cañada Flintridge, Burbank, and the San Gabriel Valley foothills. For DuraFlex service elsewhere, see our DuraFlex service in Yorba Linda and DuraFlex service in Garden Grove pages.
Book Your DuraFlex Service in Claremont Today
If your DuraFlex liner hasn’t been swept in a year, or it’s smoking back when the Santa Anas blow, call (833) 467-6493. We also offer DuraFlex service in San Antonio Heights. We’ll inspect it on camera, show you exactly what’s going on, and quote only what the liner actually needs. A clean chimney isn’t a luxury. It’s just basic fire safety.