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 Lennox, CA | Imperial Chimney
We provide independent DuraFlex chimney cleaning, inspection, and repair across Lennox, CA (90304), with one thing separating our work from a generic sweep: we map the shared chases and tight side yards that define this unincorporated pocket of LA County. Most Lennox homes are 1940s – 1960s stucco bungalows and duplexes, so DuraFlex service here means working around narrow access, aging masonry, and flues that sometimes run against a neighbor’s wall. If you own a DuraFlex fireplace or chimney system in Lennox and haven’t had the liner scoped in years, call (866) 253-3809 for a free estimate. We’re independent service providers, not a manufacturer affiliate. Noel Carrasco, our owner, has been inspecting chimneys across the LA basin for nearly two decades and built this company on one habit: we tell you what we found and show you the camera footage.
Why Lennox Residents Choose Us for DuraFlex Service
DuraFlex systems are common in Lennox, but very few companies here service them with any real depth. We’ve worked on original 1980s prefab inserts in single-story stuccos, newer high-efficiency direct vent units in later infill builds, and the odd duplex where the chase is shared and nobody bothered to map it. That last one matters more than homeowners expect.
Our crew knows DuraFlex component quirks, factory clearances, and where these systems tend to fail after decades of settle-and-heat cycles in LA’s marine-layer dampness. We stock OEM-compatible parts for fast turnaround on DuraFlex sales & service work in the area, and we treat every visit as an inspection opportunity, not just a cleaning transaction. The advantage for Lennox homeowners is straightforward: one company, start to finish, with no subcontractors and no vague “concerns.” If it’s in the flue, we’ll tell you straight.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Lennox
Here’s what we actually see in Lennox DuraFlex systems, not what a generic service page lists:
- Clay tile liner cracking behind DuraFlex prefab fireboxes. Lennox homes sit on soil that shifts with decades of settle-and-heat cycles, and the original clay tile liners behind many prefab fireboxes develop hairline fractures that open into real gaps. Only a Level 2 camera inspection reveals these. If you see soot staining around your fireplace surround, call us before you burn again.
- Corroded dampers from marine-layer moisture. Being close to LAX means persistent damp air works on steel damper plates and hardware. Older DuraFlex units with steel components rust faster here than in inland cities. A stiff or seized damper is usually the first sign.
- Failed chase top flashing and crown seals. The 1940s and 1960s stucco bungalows that dominate Lennox weren’t built with modern flashing standards. Water gets in through degraded chase tops and crowns, then deteriorates the DuraFlex chimney pipe below. We repair crowns when the metal is sound and replace flashing before it becomes a liner problem.
- Disconnected or misaligned vent sections in tight side-yard installs. Lennox lots are small, side yards are narrow, and roof access often means a ladder down a shared driveway. Previous rushed repairs frequently leave vent sections slightly disconnected. We check for this during every cleaning because the gap becomes a carbon monoxide pathway.
- Shared duplex flue complications. In Lennox, some original DuraFlex prefab fireplaces share chases with the neighboring unit. That’s rare in single-family hillside homes, and it changes how we clean, inspect, and contain soot. We drop cloth over shared fences and map the chase before we start.
DuraFlex Service in Lennox: What Local Conditions Mean for Your Equipment
Here’s the insight that doesn’t show up on generic brand pages: Lennox’s original DuraFlex prefab fireplaces often share flues with neighboring units in duplexes, so a Level 2 inspection here must map shared chase clearances. We’ve seen chases that run two flue liners side by side with a single chase top, and a crack in one liner affects the airspace the neighbor relies on. On a 1950s stucco bungalow off 104th Street—similar to what we see with DuraFlex repair in El Segundo—our crew found a DuraFlex Direct Vent insert with a cracked clay tile liner hidden behind the firebox. The homeowner had no idea until our Level 2 camera showed soot staining the adjacent framing. We replaced the damaged liner section with a DuraFlex-certified stainless sleeve, repointed the crown, and installed a new cap, all while draping a drop cloth over the shared fence to keep soot out of the neighbor’s yard. That’s what DuraFlex work in Lennox actually looks like: tight access, shared boundaries, and a camera that shows you exactly what we’re fixing. Fireplaces here get used sparingly because the climate is mild, but creosote still builds from occasional burning, and the marine layer keeps moisture working on masonry and metal year-round. Annual inspection is the main driver for our Lennox customers, not heavy heating load.
DuraFlex Models & Products We Service in Lennox
We service the full line of DuraFlex chimney models found across our Lennox service area. That includes the Direct Vent (DV) Series, Temp Guard insulated chimney, DuraPlus all-fuel chimney, and DuraTech chimney system. On the repair side, we use OEM DuraFlex parts for critical venting and cap assemblies so UL listings stay intact. Non-structural items like damper hardware get high-quality aftermarket components when they meet or exceed original specs. We repair what’s safely fixable, but we recommend full replacement when the inner liner is compromised. Patchwork on a DuraFlex system risks hidden carbon monoxide pathways, and that’s a risk we won’t leave in a Lennox home.
See the difference
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AfterDuraFlex Service Pricing in Lennox
A standard DuraFlex chimney cleaning and inspection in Lennox runs between $189 and $289. That includes the sweep, a Level 1 visual check, and the camera report so you see what we saw. If the system has a known liner issue or we need to add a Level 2 inspection, the total runs $349 to $449. Full liner replacement, when it’s required, ranges from $2,100 to $4,700 depending on the liner length and chase configuration. Repair work like crown repointing falls between $350 and $850. The variables that shift the price in Lennox are roof access, chase condition, and whether the flue is shared with a neighboring unit. A free estimate includes walking the system, checking access, and a written quote before any work starts. Call (866) 253-3809 for an exact quote.
Serving Lennox, CA — Our Local Coverage Area
We’re based in the Lennox area and also handle Hawthorne DuraFlex service, so we 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 Lennox
You usually can’t see it from the firebox opening, which is why a Level 2 camera inspection is the standard for Lennox homes with original clay tile liners behind prefab fireboxes. Signs include soot staining on the wall surrounding the fireplace, a musty odor after rain, or visible chunks of tile in the firebox. Call (866) 253-3809 and we’ll scope it.
It depends on how far the corrosion has gone. Surface rust and stiff operation can often be repaired with cleaning, lubrication, and hardware replacement. If the damper plate is rusted through or the surrounding steel is compromised, replacement is the only safe option, and we’ll show you why on camera before recommending it.
In Lennox’s dense lots—and in nearby DuraFlex repair in Del Aire—soot drift during roof cleaning is common when drop cloths aren’t used over shared fences. We drape containment cloth over the fence line and clean from the roof with controlled brush pressure so soot doesn’t drift into the next yard. If your previous sweep didn’t do that, that’s the difference.
For Lennox homes with original clay liners behind prefab fireboxes, we don’t think so. Occasional burning doesn’t prevent the settle-and-heat cracks that develop over decades. A Level 1 visual check won’t see behind the firebox. We recommend at least one Level 2 camera inspection to establish a baseline, then annual Level 1 checks after that. Call (866) 253-3809 to schedule.
Usually, yes, if the chimney pipe below hasn’t been compromised, whether we’re working in Lennox or on DuraFlex in Inglewood. We replace failed chase top flashing and reseal crowns, which stops water from degrading the DuraFlex pipe. If water has already reached the inner liner and caused damage, we’ll scope it and show you the line between repair and replacement.
Service Areas Near Lennox
We provide DuraFlex service throughout the surrounding area, including DuraFlex service in Commerce, Maywood, Bell, South Gate, and DuraFlex service in North Hollywood. If you’re a few blocks outside 90304, give us a call and we’ll let you know the next time we’re in your neighborhood.
Book Your DuraFlex Service in Lennox Today
If your Lennox home has a DuraFlex chimney that hasn’t been inspected in years, call (866) 253-3809 for a free estimate. We’ll scope the flue, show you the footage, and fix what’s actually wrong. No upsell, no vague concerns. Just a straight answer.
Written by Noel Carrasco, Owner at Imperial Chimney, serving Lennox since 2007.