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 | Brownstone Chimney Sweep
We provide independent DuraFlex chimney cleaning and repair throughout Westwood (ZIP 96137), specializing in the Pro stainless liner kits, Insulated Flex liners, and cap systems that mountain homes rely on. What separates our DuraFlex work here from a routine sweep in a low-elevation city is simple: we understand that at roughly 5,000 feet, a wood stove isn’t a decoration. It’s the heat source keeping your family warm through a long, cold winter, which means creosote builds faster, snow abuses your cap and top plate, and getting on the roof in January often isn’t possible at all. Call Brownstone Chimney Sweep at (866) 253-8489 for a free estimate, and we’ll tell you what your DuraFlex system actually needs before the snow buries it.
Why Westwood Residents Choose Us for DuraFlex Service
Our crew works on DuraFlex chimney systems year-round in the Westwood and Clear Creek valley, so we’ve seen how their stainless liners and caps hold up under heavy snow loads and constant wood-stove use. Steve Brown started this company because he got tired of watching generalist handymen patch chimneys with hardware-store parts that fail within two seasons. We take a different approach: clean first, inspect thoroughly, and use DuraFlex-compatible OEM or equivalent-quality stainless components when something needs replacing. We are an independent service provider, not authorized, sponsored, or endorsed by DuraFlex, and we diagnose and repair based on what the chimney actually needs, not what a manufacturer’s rep would like us to sell. That independence matters in Westwood, where a decent sweep is the difference between a warm winter and a chimney fire in February.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Westwood
- Snow-crushed rain caps: A DuraFlex Round Top or Deluxe cap takes a beating at 5,000 feet. Heavy snowpack settles on the spark screen, bends it inward, and restricts draft. We see this constantly on Westwood homes with steep-pitch roofs where snow slides off in chunks and slams into the cap. We replace damaged caps with stainless DuraFlex-compatible units and reseal the top plate so meltwater can’t find its way inside.
- Glazed creosote in flex liner corrugations: When a wood stove runs as primary heat from October through April, creosote doesn’t just accumulate. It glazes. The corrugations in a DuraFlex flex liner are exactly where a standard brush can’t reach, which is why we use rotary cleaning heads that actually get into the ridges. In Westwood, this isn’t a once-a-year courtesy sweep. It’s a twice-a-season necessity for heavy burners.
- Loose flex liner seams from thermal cycling: Cold high-elevation winters mean your DuraFlex liner expands and contracts constantly. Over years, that thermal cycling works seams and joints loose, which lets flue gases leak into the chase or between floors. We catch this during cleaning and can re-secure seams that are still sound, rather than letting them fail quietly.
- Meltwater intrusion through failed top plates: Freeze-thaw in Westwood bends and seizes fasteners on DuraFlex caps and top plates. Once a top plate lifts or a cap seal fails, snowmelt drips down the liner, mixing with creosote into a corrosive sludge that accelerates liner wear. We inspect the full top assembly on every sweep, not just the flue itself.
- Smoke back-draft from restricted caps: When snow and ice pack a DuraFlex cap screen solid, the draft chokes. Smoke backs into the living space, triggering carbon monoxide alarms and coating the firebox with soot. We’ve cleared more than a few Westwood caps that looked fine from the ground but were completely plugged at the top.
DuraFlex Service in Westwood: What Local Conditions Mean for Your Equipment
Here’s the thing about owning a DuraFlex system anywhere in the 96137 ZIP: the practical bottleneck isn’t the liner, it’s the roof. At roughly 5,000 feet, snow covers Westwood roofs for much of winter, and the steep pitches on these early-to-mid-20th-century timber-era homes make midwinter roof access genuinely unsafe. That means DuraFlex repair in Burbank-style cap and top-plate jobs on Westwood homes get scheduled for late spring or fall, and homeowners who wait until the first heavy snow often can’t get a sweep on the roof at all. The same rule applies to cleaning: if your wood stove is your main heat, you need creosote removed before the snow falls, not after. Once the roof is under two feet of snowpack, a simple Round Top cap inspection becomes a spring project. Book early.
DuraFlex Models & Products We Service in Westwood
We work on the full DuraFlex line that shows up in Westwood homes: Pro stainless steel chimney liner kits, Insulated Flex pre-insulated liners, Round Top and Deluxe rain caps, and the tee and appliance connector kits used with wood stoves. When we replace a cap, top plate, or connector, we use DuraFlex-compatible stainless components, not galvanized substitutes that rust out after a few mountain winters. For common cap and connector parts, we keep the items Westwood homeowners need most on the truck, which means a fast turnaround without waiting on a parts order from a supplier.
See the difference
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AfterDuraFlex Service Pricing in Westwood
What you’ll pay for DuraFlex service in Westwood depends on three things: how badly the creosote has built up, whether the cap and top plate need replacement, and whether your liner is still sound. A standard cleaning and inspection runs lower than a full cap replacement with top-plate resealing, but neither should be guessed at. The free estimate we give you includes a camera inspection of the liner if we see reason for concern, and you’ll get a photo report showing exactly what we found. Nothing gets recommended without visual evidence you can see for yourself. Call (866) 253-8489 for an exact quote, and we’ll give you straight numbers before any work begins.
Serving Westwood, CA — Our Local Coverage Area
We’re based in the Westwood area and offer La Cañada Flintridge DuraFlex service as well, 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
Heavy snowpack settling on a Round Top or Deluxe cap at 5,000 feet bends the spark screen and restricts draft, and repeated freeze-thaw cycles seize the fasteners that hold the cap to the top plate. The fix is a stainless DuraFlex-compatible replacement cap, properly sealed and set. If you’re replacing a cap every other year, the real issue is usually the top plate underneath it, not the cap itself. Call (866) 253-8489 and we’ll inspect the whole top assembly before you buy another cap.
In Westwood, where a wood stove runs as primary heat from October through April, most DuraFlex liners need sweeping twice per heating season. Creosote glazes fast when a stove burns hot and often, and the corrugations in a flex liner hold onto what a standard brush misses. We’ll tell you plainly how your burn rate maps to a realistic sweeping schedule after the first cleaning.
Yes, and we recommend it for any Westwood home that’s been through a hard snow season or hasn’t had a camera inspection in three years. A Level 2 includes a scan of the liner interior, the cap, the top plate, and all accessible joints. The best time is fall, before roof access disappears under snowpack. Call (866) 253-8489 to schedule before the first storm.
Depends on what the seams actually look like up close. If the stainless is still sound and the joints are just working loose from thermal cycling, we can often re-secure and reseal them. If there’s cracking, separation, or rust-through at the seam line, the liner has failed and a repair won’t hold. We’ll show you the camera footage and give you our straight read. You decide what happens next.
We do. The DuraFlex systems we service in Westwood include liners running to gas inserts, not just wood stoves. Gas produces less creosote, but the liner and cap still need inspection for snow damage, corrosion, and draft restriction. The same roof-access timing applies: get it checked before the snow locks you out.
Service Areas Near Westwood
Our crew covers the mountain valley communities around Westwood, including Clear Creek and the surrounding high-elevation households. We also travel to nearby communities for DuraFlex chimney work, and we maintain regular routes through DuraFlex service in Fountain Valley and DuraFlex service in Venice. If you’re in Westwood or the adjacent ZIP codes, we’re close enough to get to you before the next snow cycle.
Book Your DuraFlex Service in Westwood Today
Winter in Westwood doesn’t wait, and neither should your chimney. Call Brownstone Chimney Sweep at (866) 253-8489 for a free estimate on DuraFlex cleaning, inspection, cap replacement, or liner repair. We recommend booking before the first heavy snow locks your roof until spring. Our schedule fills fast in October and November, but we always leave room for urgent creosote cases.