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 Norwalk, CA | San Bernardino Chimney Sweep
We provide independent DuraFlex chimney cleaning, inspection, and Norwalk Chimney Sweep repair across Norwalk, and the thing that sets our work here apart is simple: most Norwalk DuraFlex systems sit idle ten months out of the year, which means the problems we find aren’t heavy creosote buildup, they’re nests, debris, and moisture damage in chimneys that haven’t been looked at since last winter. We’re San Bernardino Chimney Sweep, and we’ve been pulling animal nests and cracked tile from DuraFlex-equipped block chimneys in Norwalk’s older tract homes long enough to know exactly what to expect when we knock on your door. Call (877) 516-7159 to schedule a DuraFlex cleaning or inspection, and we’ll tell you what we find before we fix it.

Why Norwalk Residents Choose Us for DuraFlex Service
DuraFlex liners are good equipment, but they live inside chimneys that are far older than the liner itself. That’s the reality in Norwalk, where most fireplaces date to the 1950s and 60s and the DuraFlex system was added later, usually as an upgrade over failing clay tile. We understand how those two pieces work together, or don’t, because we see them side by side every week across Norwalk service area homes. Our DuraFlex sales & service work covers everything from cleaning and inspection to cap replacement and liner repair, and we stock genuine DuraFlex caps, liners, and components locally so we’re not waiting on a warehouse in another state when your flue is full of pigeon debris. Allen Prescott, our owner, grew up near the Kendall Drive corridor in San Bernardino and spent nearly three decades working on Inland Empire chimneys before bringing that same straight-talk approach to Norwalk. He’ll tell you what’s actually wrong, what it costs to fix, and what can safely wait until next season.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Norwalk
Here’s what we actually find when we open up a DuraFlex system in Norwalk. This list isn’t generic chimney advice, it’s the pattern we’ve seen enough times to predict before we even set up the ladder.
- Animal nests blocking the cap and flue. Norwalk’s older block chimneys sit uncapped or poorly capped through the long off-season, and pigeons and squirrels treat them like free real estate. We routinely pull nests from DuraFlex-capped flues, often on chimneys that were closed up years ago and never checked. The nest blocks draft, traps moisture against the liner, and creates a fire hazard you can’t see from the ground.
- Cracked clay flue tiles behind the DuraFlex liner. Decades of settling and seismic shaking have taken a toll on Norwalk’s original clay tile, and when that tile spalls, it can press against the flexible DuraFlex liner or let heat reach the masonry where it shouldn’t. We inspect for this specifically during cleaning, because a clean liner behind a cracked outer flue doesn’t mean a safe chimney.
- Cap and spark arrestor damage from Santa Ana winds. The hot, dry fall winds that roll through Norwalk don’t just raise wildfire risk, they also tear at chimney caps, loosen mounting hardware, and bend spark arrestor mesh. A damaged cap lets rain, embers, and animals in, and that’s when your liner starts corroding from the inside.
- Stainless liner corrosion from moisture and debris sitting in an unused chimney. DuraFlex stainless is built to last, but it’s not immune to sitting damp for months. When a Norwalk chimney goes unused from March to November with a bit of debris holding moisture against the liner wall, we see pitting and surface corrosion that a regular heating-season house would never experience. Catching it early saves the liner.
- Liner joint separation from old home settling. Norwalk’s post-WWII homes have settled unevenly over 60 plus years, and that movement can pull at the flexible joints where DuraFlex sections connect. We check joint integrity during every cleaning, because a separated joint sends exhaust, carbon monoxide, and heat into the chimney cavity instead of up and out.
DuraFlex Service in Norwalk: What Local Conditions Mean for Your Equipment
Norwalk is a working-class, heavily Latino suburb of single-family tract homes, and the chimneys here reflect exactly that history. Most fireplaces are original masonry units in 1950s and 60s block-wall chimneys, not modern factory-built inserts, and many have been converted to gas or sealed off entirely. Wood-burning use is sparse, maybe a few holiday fires or a cold-snap evening, which sounds like it should make chimney maintenance easier. It doesn’t. A chimney that sits idle for ten months accumulates debris, moisture, and wildlife that a frequently used chimney never gets. Pigeons find uncapped flues in the spring and move in by summer. Squirrels chew through damaged spark arrestors. The dry, smoggy air and seasonal Santa Ana winds work on the masonry, opening small cracks that let moisture into the block structure. And behind all of that sits your DuraFlex liner, which you can’t see and can’t clean without getting on the roof. Our service calls in Norwalk aren’t mostly about heavy creosote the way they’d be in a mountain town where people burn wood every night from October to April. Here, the work is inspection-driven: pulling nests, checking caps, looking for spalling tile behind the liner, and making sure the system that was quiet all summer is safe to light the first cold night someone wants a fire. A clean flue isn’t a luxury, it’s just how you keep the fire where it belongs.
DuraFlex Models & Products We Service in Norwalk
We service the full DuraFlex residential line that shows up in Norwalk homes: the DuraFlex Pro, DuraFlex SW, DuraFlex Insulated, and the DuraFlex Cap and Crown series. For most local installs, the Pro and SW lines are what we see in older masonry chimneys, while a few newer retrofits use the Insulated line for tighter clearances. We stock genuine DuraFlex replacement caps, liners, and components so we can handle cap swaps and liner section repairs without long waits. When OEM parts are backordered or priced like they’re made of silver, we use high-quality aftermarket equivalents that meet the same code and fit standards, but we’ll always tell you which is which and why. If the liner itself shows widespread deterioration, we won’t patch it piecemeal just to get through one season. We’ll tell you straight what a full evaluation showed and what a replacement would actually cost, then let you decide with real camera evidence in hand.
See the difference
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AfterDuraFlex Service Pricing in Norwalk
Chimney sweep pricing in Norwalk generally runs between $180 and $340 depending on the condition of the flue, access difficulty, and whether we’re pulling nests or dealing with a roof pitch that slows us down. DuraFlex-specific work like cap replacement or liner section repair adds parts cost on top of the sweep, and that depends entirely on what your system is and what we find. What you pay for is the actual work, not a flat package rate that assumes the worst. We give a firm price before we book the sweep, and if the inspection turns up something beyond cleaning, you’ll see the camera footage and get a line-item quote before you approve anything. Nothing gets recommended without evidence you can look at yourself. Call (877) 516-7159 for a free estimate based on your specific chimney and what we can see from the ground before we even climb the roof.
Serving Norwalk, CA — Our Local Coverage Area
We’re based in the Norwalk 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 Norwalk
Yes, and it’s one of the more common DuraFlex in Bellflower and Norwalk repairs we handle. A missing or damaged cap lets rain, embers, and animals into your flue, and on an idle chimney that can quietly ruin a liner in a season or two. We stock genuine DuraFlex caps locally and can usually replace a single-flue cap the same trip as a cleaning or inspection. If your chimney was built as a multi-flue original, we may need to measure and order. Call (877) 516-7159 and we’ll take a look at what you’ve got.
If the conversion happened before you owned the home, or if the last inspection was years ago, then yes, a Level 2 inspection is the right call. Gas conversions change draft requirements and heat profiles, and a liner that was fine for occasional wood fires may not be sized or clearanced correctly for gas. The same squirrel nest we’ve found in converted Norwalk chimneys doesn’t care what fuel you burn now. Get it checked before you light anything.
You won’t know from the ground, and that’s the honest answer. Stainless DuraFlex liners can look fine from the top while corrosion, joint separation, or cracked tile behind them is developing where you can’t see it. Our cleaning includes a camera inspection so you see the liner interior yourself, not just our word for it. If you fire up the fireplace only a few times a year, every two to three years is plenty for inspection, but don’t let a decade go by. Call (877) 516-7159 to book a cleaning with camera inspection.
Usually, yes. Norwalk’s dry climate and summer heat work on block chimney masonry, but spalling on the outer face is typically repairable with tuckpointing and cap-sealing rather than a full rebuild. What we’ll check first is whether the spalling is cosmetic or structural, because if moisture has penetrated deep into the block and reached the liner, you need more than brickwork. On a recent job in the 1950s tract blocks near Studebaker Road, our tech pulled a squirrel nest from a DuraFlex-capped chimney that had been sealed off for years—similar to DuraFlex in Santa Fe Springs homes—the homeowner only noticed because of scratching sounds. We removed the debris, found two cracked flue tiles behind the liner, and replaced the damaged cap with a DuraFlex multi-flue model to keep animals out and improve draft. That’s the kind of thing a simple sweep alone would have missed.
Install a properly fitted cap with intact spark arrestor mesh, and check it at least once a year before spring nesting season. In Norwalk’s older tract blocks, uncapped block chimneys are prime nesting spots for pigeons and squirrels, and once they’re in, you’re pulling nests, droppings, and often dead animals from the flue. A cap that was bumped loose by Santa Ana winds or chewed through by a determined squirrel still counts as uncapped. If you hear scratching or see birds congregating around your chimney, call (877) 516-7159, we’ll inspect the cap and the flue in one visit.
Service Areas Near Norwalk
We also provide DuraFlex cleaning and repair in neighboring communities, including DuraFlex service in Cerritos, DuraFlex service in Westminster, plus select areas of Rubidoux, Colton, and Loma Linda. If your home sits in a 1950s or 60s tract with an original block chimney, we’re likely already familiar with the block you live on.
Book Your DuraFlex Service in Norwalk Today
If your chimney hasn’t been cleaned or inspected in the last two years, or you’ve heard something moving around up there, call us at (877) 516-7159 to schedule a sweep. We’ll give you a straight answer, show you what we find, and fix what needs fixing, without selling you work you don’t need.
Written by Allen Prescott, Owner at San Bernardino Chimney Sweep, serving Norwalk and surrounding communities.