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 Altadena, CA | Hickory Chimney Sweep
We provide independent DuraFlex chimney cleaning and repair across Altadena, from 1920s bungalows to mid-century ranches, without any manufacturer authorization or warranty tie-in. The thing that makes our DuraFlex work different here? We know what Bobcat Fire ash and seismic-shifted clay flues do to stainless liners, because we see it every week. If you own a DuraFlex system in Altadena, call (855) 554-2841 for a straight diagnosis and a free estimate.
Why Altadena Residents Choose Us for DuraFlex Service
Altadena homes wear DuraFlex systems hard. The original clay-tile flues in these early-1900s Arts and Crafts bungalows and 1940s-50s ranches shift with the region’s seismic activity, and the Santa Ana winds push ash and debris into caps and liners in ways you don’t get down in the flatlands. We’ve logged hundreds of hours on DuraFlex prefab systems across Altadena’s mixed housing stock, and we diagnose them without leaning on a manufacturer’s help line. Ruben Acosta, our owner, has spent more than two decades sweeping and inspecting chimneys across East Los Angeles and the foothills. He’ll tell you what a DuraFlex liner looks like after three seasons of post-Bobcat ash exposure, because he’s opened enough of them to know. When you call us for DuraFlex sales & service, you get that depth of experience applied directly to your flue.
Styles & brands we work with
Common DuraFlex Chimney Cleaning Problems We Solve in Altadena
- Ash-fused creosote in the top three feet of the liner. This is the big one in Altadena. After the 2020 Bobcat Fire, wind-blown ash settled into flues across the foothills. We now find hardened, acidic creosote fused to the upper sections of DuraFlex stainless liners in roughly one in three homes we open up. Standard sweeps miss it because they don’t camera the top of the flue before scrubbing.
- Corrosion pitting and seam separation from ash-driven moisture. Santa Ana winds push fine ash and creosote moisture into the liner seams. Over time, that mixture eats at the stainless. We catch pitting early with a camera inspection and treat it before it becomes a full reline job.
- Liner sagging and kinking from seismic-shifted clay flues. Altadena sits at the base of the San Gabriels, and the ground moves. When original clay tiles shift, flexible DuraFlex sections pulled through them can kink or sag, creating hidden gaps where creosote drips onto the smoke shelf. We find these during Level 2 inspections and straighten or replace the affected section.
- Cap and crown detachment on multi-flue DuraFlex caps. Wind-blown debris and ash accumulate on cap screens, then moisture gets trapped and rusts the screen and top plate. We see detached caps on ranch homes and bungalows all over Altadena, especially after high-wind events.
- Undersized DuraFlex inserts from 1980s and 90s fireplace conversions. Plenty of mid-century Altadena ranches got quick fireplace conversions back then, and the inserts were often undersized for the firebox. On cool winter evenings when Altadena dips into the 30s, those undersized liners cause backdrafts and accelerated creosote buildup. We catch this with a simple draft test and then size the replacement correctly.
DuraFlex Service in Altadena: What Local Conditions Mean for Your Equipment
Here’s the thing people outside the foothills don’t understand: Altadena’s post-Bobcat ash burden is still working through chimney systems. Many DuraFlex liners installed after the fire were never re-inspected for ash-fused creosote at the top three feet of the flue. We find it in roughly one in three foothill homes we open up, and it’s a condition standard annual sweeps in neighboring cities rarely encounter because they don’t have the same ash load. The ash doesn’t just sit on top; it bonds with creosote and forms an acidic crust that pits the stainless. We were called to a 1928 Arts and Crafts bungalow off East Mariposa Street where the homeowner had a DuraFlex stainless liner installed after the Bobcat Fire, but the cap screen was clogged with wind-blown ash and the top 18 inches of liner showed pitting. After a Level 2 inspection with our camera, we removed the fused creosote, replaced the cap with an OEM DuraFlex multi-flue cap, and treated the pitted section. The draft came back, no full reline needed. Two weeks later the homeowner burned a cold evening fire with no smoke spillage. That’s the difference between a sweep who knows Altadena’s ash problem and one who just scrubs what they can reach. Tell me what the flue looks like and I’ll tell you what your winter looks like.
DuraFlex Models & Products We Service in Altadena
We service the full DuraFlex lineup you’ll find in Altadena homes: the Stainless Steel Liner relining kit, the Insulated Chimney Liner, the Pro Flexible Liner, and the Chimney Cap System. Our parts approach is simple. If the original system is still in production, we use OEM DuraFlex replacement caps, sections, and adapters. When an OEM part is discontinued, we substitute an equal-or-better aftermarket stainless component only after verifying the fit. For Altadena customers, that means we can often replace a failed cap or a short liner section without ordering from a distant warehouse and waiting a week. We stock common DuraFlex caps, adapters, and short liner sections for fast foothill turnaround.
See the difference
Before
After
Before
After
Before
AfterDuraFlex Service Pricing in Altadena
DuraFlex chimney cleaning in Altadena typically runs $180 to $340 for a standard sweep and inspection, depending on liner condition, creosote load, and whether we’re dealing with post-fire ash fusion. A Level 2 camera inspection adds cost but is worth it for any liner installed before 2020, especially if you’re near the foothill interface. Cap replacement runs $250 to $550 depending on the DuraFlex model and flue configuration. If the liner fails within a few feet of the top, we repair; if corrosion or kinking runs the full length, we recommend a full reline rather than patching a compromised system. Every job starts with a free estimate, and the estimate includes the camera findings. Call (855) 554-2841 for an exact quote. Nothing gets recommended without camera evidence you can see for yourself.
Serving Altadena, CA — Our Local Coverage Area
We’re based in the Altadena 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 Altadena
Most DuraFlex liners survive Altadena’s shifting ground just fine, but the clay tiles around them often crack and shift first. The question is whether your liner was pulled through original clay flues that have since moved. We check this with a camera during the cleaning. If the liner is kinked or sagging in a short section, we repair. Full reline is only a recommendation when corrosion or kinking runs the length of the flue. Call (855) 554-2841 and we’ll show you the footage.
You won’t know without looking. Ash can clog a cap screen and sit there for years while moisture works its way into the stainless. Signs include a weaker draft, smoke spilling into the room on cold evenings, or water stains near the firebox. We check the cap and the top three feet of the liner on every DuraFlex cleaning in Altadena, specifically because of the post-fire ash load here. Call (855) 554-2841 for an inspection.
Yes, and it’s common. If the liner is sound and the only failure is a rusted screen or detached multi-flue cap, we replace just the cap with an OEM DuraFlex unit or an equal-or-better aftermarket stainless part if the original is discontinued. We don’t upsell a full reline when a cap replacement is all the system needs. Call (855) 554-2841 and we’ll tell you what the camera shows.
Sort of. The insert itself is likely undersized for the firebox, which was a common conversion shortcut in the 1980s and 90s. But Altadena’s cold winter evenings, dipping into the 30s, make the backdraft worse because the temperature differential between indoors and outdoors is greater. We size the replacement correctly for the firebox and the local draft conditions. Call (855) 554-2841 for a draft test and a straight answer.
We offer an alternative only when the OEM part is discontinued and the aftermarket stainless component fits the existing system exactly. Otherwise, we use OEM DuraFlex. The goal is a lasting repair, not a cheaper one. For a 1920s Altadena bungalow with an original masonry fireplace, the right part matters more than the lowest price. Call (855) 554-2841 and we’ll walk you through the options for your specific liner.
Service Areas Near Altadena
We serve Altadena and the surrounding foothill and East LA communities, including Altadena service area coverage across 91001 and 91003. For nearby cities, see our DuraFlex service in Sierra Madre and DuraFlex service in La Mirada pages. We also work in East Los Angeles, Monterey Park, and Boyle Heights.
Book Your DuraFlex Service in Altadena Today
If your DuraFlex liner hasn’t been camera-inspected since the Bobcat Fire, don’t wait for the next cold snap to find out. Call (855) 554-2841 for a free estimate and a straight diagnosis. We’ll show you what the flue looks like and tell you exactly what needs doing. Clean it. Repair it. Protect it.
Written by Ruben Acosta, Owner at Hickory Chimney Sweep, serving Altadena and the surrounding foothill communities.