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 Westwood, CA | San Bernardino Chimney Sweep
We provide independent DuraFlex chimney cleaning and liner service throughout Westwood, CA (ZIP 96137). What sets our DuraFlex work here apart is simple: in this timber-country market, we’re not dealing with occasional fireplace use. We’re dealing with heavy, high-volume wood combustion in seasonal cabins where creosote glazes hard inside stainless flex liners during long idle stretches. Call (877) 516-7159 for a free estimate on DuraFlex cleaning, inspection, or liner repair in Westwood.

San Bernardino Chimney Sweep is an independent DuraFlex service provider. We are not authorized, sponsored, or warranty-endorsed by the manufacturer. What we are is a crew that has worked on DuraFlex stainless flex liner systems in Lassen County mountain cabins for years, and the high-volume wood-stove retrofits up here expose every weakness a liner can develop. For broader chimney and venting work across the region, see our DuraFlex sales & service page.
Why Westwood Residents Choose Us for DuraFlex Service
We know DuraFlex liner systems the way a mechanic knows a specific engine family. The 316L stainless flex liner is a workhorse in wood-stove retrofits, but it behaves differently when you’re burning pine and fir resin wood eight months a year in a mountain climate. The seam gaps collect creosote faster. The top plates take snow load and freeze-thaw cycles that flatland chimneys never see. The caps rust out from resinous debris sitting wet under snow. Most chimney companies can run a brush through a flue. Fewer can tell you whether that DuraFlex liner is still seated correctly after a Westwood winter.
Allen Prescott, our owner, grew up near the Kendall Drive corridor in San Bernardino and has spent the better part of three decades working on chimneys and fireplaces across Inland Empire and mountain homes, including DuraFlex in San Fernando. He’ll tell you what he found in your flue, why it matters, and what actually needs to be done versus what can wait. That’s the approach we bring to every DuraFlex service call in Westwood.
We’re also a repair shop, not just a sweeping outfit. When an inspection turns up a crushed liner section, a rusted top plate, or a poorly seated tee, we fix it. You don’t need a second company to handle what the sweep uncovers. And we use DuraFlex-compatible OEM or equal-quality stainless components for top plates, caps, tees, and connectors. Contractor-grade materials, not hardware-store substitutes.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Westwood
- Glaze-stage creosote hardened into liner seam gaps. This is the problem we see most in Westwood’s absentee-owned cabins. A stove burns hot pine for a winter, the house sits idle for two winters, and the creosote in those DuraFlex seam gaps doesn’t just build up. It glazes into a hardened, tar-like layer that a standard brush won’t touch. We use rotary sweeping and chemical treatment to break it down without damaging the stainless.
- Pine and fir resin creosote glazed onto liner walls across long seasons. Westwood’s surrounding forest means most firewood is pine and fir. Those resins produce creosote faster than hardwood. Over a single long heating season, a heavily used DuraFlex liner can accumulate enough resin-based creosote to require a rotary pass, not a quick brush-through.
- Crushed, kinked, or poorly seated flex liner sections. Many Westwood homes have older masonry fireplaces converted to wood stoves or inserts. The original fireplace was never built for a liner. When a DuraFlex flex liner gets pulled through a tight throat or offset smoke shelf, it can kink or seat poorly. We find these during sweeps and Level 2 inspections, and we’ll tell you honestly whether a section can be re-seated or needs partial re-lining.
- Cracked or rusted top plates and cap screens from snow load and freeze-thaw. Where the liner terminates at the roof, Westwood’s mountain climate does real damage. Snow sits on the cap, ice forms in the screen, and the freeze-thaw cycle works on the stainless. We replace more rusted cap screens in Westwood than in any flatland market we serve.
- Animal nests in flues of second homes that have been closed up. Seasonal cabins are magnets for squirrels, birds, and pack rats. A DuraFlex liner with an uncapped or damaged top is an open invitation. We clear nests before sweeping and often install new caps to keep it from happening again the same fall.
DuraFlex Service in Westwood: What Local Conditions Mean for Your Equipment
Westwood’s ZIP 96137 sits in the forested mountains of Lassen County on the edge of the Sierra/Cascade transition. This is not a market where a fireplace gets lit for ambiance on holidays. Nearly every home burns wood as a primary or backup heat source, and cold, snowy winters drive a heating season that can run from October into May. That means a DuraFlex in Northridge or similar city conditions sees far less wear—our Westwood liners face more fire hours and more creosote in one season than a city fireplace liner sees in five.
But the bigger factor is the absentee ownership pattern. A large share of Westwood’s properties are seasonal or second-home cabins. They sit closed up for months at a time. The stove goes cold with a half-season of creosote still on the liner walls. Then the creosote sits there, absorbing moisture from the mountain air, hardening, and glazing. Next time the family shows up and lights a fire, that glazed creosote is a real fire risk inside the flue. Our crew regularly arrives to DuraFlex in Adelanto-style conditions on stoves that sat idle for two winters, and the problem is long service gaps from remote ownership, not occasional fireplace use. Seasonal access and road conditions around the snow season shape how we schedule these jobs, and we plan Westwood sweep routes around when the back roads are passable.
On a cabin off the Westwood area’s forested mountain roads in 96137, our tech pulled a squirrel nest and a crusted cap screen off a DuraFlex flex liner topping a wood stove that had been retrofitted into an old masonry fireplace, then found glaze-stage creosote in the liner seams from that winter’s pine burning. We rotary-swept and chemically treated the glazed sections, re-seated the top plate, and installed a new cap because the old screen had rusted through. The family’s first fire that fall drafted clean, and we scheduled the next sweep before the snow made the road in.
DuraFlex Models & Products We Service in Westwood
We service the full range of DuraFlex stainless liner systems found in Westwood homes, including the 316L stainless flexible liner that’s standard for wood-burning relines, 304 stainless flex liner kits, insulated flex liner kits for exterior chimneys, and Silver Lakes DuraFlex service-style flex liner systems with tee and top-plate terminations for wood stoves and inserts. When a liner is still sound, we clean it thoroughly and re-seat any loose sections. When it’s crushed, corroded, or damaged beyond what cleaning can address, we recommend partial re-lining with DuraFlex-compatible OEM or equal-quality stainless components. We’ll tell you honestly which path your liner needs.
See the difference
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AfterDuraFlex Service Pricing in Westwood
What you’ll pay for DuraFlex chimney cleaning in Westwood depends on what we find. A standard sweep on a regularly maintained liner costs less than a job requiring rotary creosote removal or chemical treatment for glaze-stage buildup. If your liner has a rusted cap, a poorly seated tee, or a crushed section, the repair adds to the total. You’ll know the full price before we start because we provide a flat-price quote after inspection.
A typical Westwood DuraFlex sweep runs between $180 and $340, depending on liner condition and access. Inspection-only calls start lower. Partial re-lining or cap replacement adds material and labor, which we’ll quote line by line. Camera inspection and a photo report are included so you can see exactly what we’re seeing inside your flue. Call (877) 516-7159 for an exact quote. Estimates are free.
Serving Westwood, CA — Our Local Coverage Area
We’re based in the Westwood 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 Westwood
No. Glaze-stage creosote is hardened and tar-like. A standard brush pass won’t remove it. We use rotary sweeping and chemical treatment to break down the glaze without damaging the stainless liner. If your Westwood cabin has sat closed up for multiple winters, expect us to spend extra time on the liner. Call (877) 516-7159 and we’ll walk you through what’s involved.
Westwood’s snow load and freeze-thaw cycles are hard on liner terminations. Snow sits on the cap, ice forms in the screen, and resinous debris from pine and fir firewood collects and holds moisture against the stainless. We replace rusted caps and top plates regularly in this area. It’s a climate issue more than a defect.
Sometimes, but not always. Many Westwood retrofits involve older masonry fireplaces that were never built to accommodate a liner. The DuraFlex liner can kink, crush, or seat poorly where it passes through the old smoke shelf. When we sweep, we camera-inspect the liner and check the seating. If it’s sound, a sweep is enough. If it’s crushed or badly seated, we’ll tell you exactly what needs repair.
Yes. We clear nests and debris before we sweep. A blocked flue is a carbon monoxide hazard, and animal nests inside a DuraFlex liner can also trap creosote and moisture. Once the flue is clear, we sweep and inspect the liner, then make sure the cap is in good enough shape to keep animals out next season.
If you’re burning pine and fir as your primary heat source through a Westwood winter, sweep your flue every year. Heavy use over a long heating season produces creosote quickly, and the longer it sits, the harder it is to remove. If you use the cabin seasonally, sweep at the start of every season before you light the first fire. Call (877) 516-7159 to schedule your next Westwood sweep.
Service Areas Near Westwood
San Bernardino Chimney Sweep serves Westwood service area and surrounding mountain communities across Lassen County and the broader region. We also provide DuraFlex service in Redondo Beach for coastal homes with salt-air exposure, and DuraFlex service in Carlsbad for liner work in that coastal market. If you’re near Westwood and need DuraFlex cleaning or repair, call and ask if we’re scheduling routes in your area.
Book Your DuraFlex Service in Westwood Today
If your Westwood flue hasn’t been swept since before the snow last year, call us now. We’ll schedule a sweep and inspection, camera the liner, and tell you honestly what your DuraFlex needs to be safe for the next burn season. Call (877) 516-7159 for a free estimate.
Written by Allen Prescott, Owner at San Bernardino Chimney Sweep, serving Westwood, CA.