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 Willowbrook, CA | San Bernardino Chimney Sweep
San Bernardino Chimney Sweep provides independent DuraFlex chimney cleaning and inspection across Willowbrook’s 90059 ZIP, specializing in the flexible stainless liners and caps found in the area’s mid-century homes. The DuraFlex work here is different because so many Willowbrook chimneys were installed without a city building department looking over anyone’s shoulder, meaning most liners have never been properly inspected. We’re not manufacturer-affiliated or authorized, just a local crew that knows these systems inside and out. Call (877) 516-7159 for a free estimate.

Why Willowbrook Residents Choose Us for DuraFlex Service
We’ve spent years servicing DuraFlex sales & service across South LA County, and Willowbrook’s older stucco homes keep us busy with a specific kind of work: liners that were installed decades ago, caps that haven’t been touched since, and homeowners who inherited a fireplace they know nothing about. 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 Inland Empire and South LA chimneys. He built this company on straight talk, which is what Willowbrook landlords and homeowners deserve when a decorative fireplace suddenly smells like a dead animal.
We stock both OEM DuraFlex components and quality aftermarket equivalents, so we’re not waiting on a parts shipment when your cap screen is packed with nesting debris. And because we’re a specialist, not a generalist, the crew that cleans your DuraFlex liner is the same crew qualified to repair it if the camera inspection turns up something.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Willowbrook
- Clogged cap screens from bird nests and dry leaf litter. Willowbrook’s long dry season means birds and rodents move into uncapped or damaged flues and stay. We regularly pull nests out of DuraFlex Round Top cap screens that haven’t been checked in years. A packed screen starves the fireplace of draft and sends smoke back into the living room.
- Rusted top plates and caps from Santa Ana wind exposure. The wind events that blow through South LA County carry grit and debris that scours exposed cap surfaces. Sporadic fireplace use means moisture sits on that metal, and rust follows. We inspect the cap and top plate on every Willowbrook cleaning because a rusted cap lets water into the flue.
- Corrosion at liner joints in idle flues. Marine-layer humidity creeps into unused chimneys, and soot absorbs that moisture against the stainless. It happens slowly, but we’ve found corroded joints in DuraFlex SW liners that hadn’t seen a fire in years. A camera inspection tells us whether it’s surface or structural.
- Liner misalignment from seismic settling. Willowbrook sits on ground that moves. Older masonry chimneys settle, and flexible liners can shift out of alignment at the connections. If your fireplace drafts strangely or you hear rattling when the wind picks up, the liner may need reseating.
- Debris-packed smoke shelves and flue channels. In a 1950s-era Willowbrook home with a capped fireplace, soot and debris accumulate in the smoke shelf for decades. The flue itself may look fine from the top, but the shelf is where the blockage hides. Our Level 2 camera inspection finds what a visual check misses.
DuraFlex Service in Willowbrook: What Local Conditions Mean for Your Equipment
Here’s something a generic brand page won’t tell you: Willowbrook is unincorporated, so there’s no city building department signing off on chimney work. That means plenty of DuraFlex liners in this area were installed without permits, and many have never been inspected by anyone who knew what they were looking at. In practice, our technicians see liners that were never properly seated, connectors that were improvised rather than matched, and caps that were handed to a handyman who screwed them into crumbling mortar. A Level 2 camera inspection is the only way to confirm a DuraFlex liner is actually connected and functioning the way it should be. If you own a home near Willowbrook Avenue or anywhere in the 90059 ZIP and you’ve never had the flue scoped, assume it hasn’t been done, because in Willowbrook that’s usually the case.
DuraFlex Models & Products We Service in Willowbrook
Our crews work on the DuraFlex SW single-wall flexible stainless liner, the DuraFlex Pro insulated liner, and DuraFlex Round Top and Multi-Flue caps. We match the existing liner type on older systems rather than swapping in whatever is on the truck, because fit matters with flex liners. We stock common OEM DuraFlex components and quality aftermarket equivalents in the truck, so most Willowbrook jobs are completed the same day. Level 2 inspection, cap installation, and soot removal are the three services we most often combine on DuraFlex systems here, since a cleaning is rarely just a cleaning once the camera goes in.
See the difference
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AfterDuraFlex Service Pricing in Willowbrook
A standard DuraFlex chimney cleaning in Willowbrook runs $169 to $229. Add a Level 2 camera inspection and you’re looking at $249 to $349, which we recommend for any liner that hasn’t been scoped. If we find a clogged or rusted cap, replacement with a DuraFlex Round Top runs $145 to $295 installed. The variables are liner length, access through those tight Willowbrook side yards, and whether we’re pulling out a nest or a full debris block. Every estimate is free and includes a written breakdown before we start. Call (877) 516-7159 and we’ll give you an exact number for your fireplace.
Serving Willowbrook, CA — Our Local Coverage Area
We’re based in the Willowbrook 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 Willowbrook
How often should a DuraFlex liner be inspected in Willowbrook?
We tell Willowbrook homeowners to inspect their DuraFlex liner every year if the fireplace gets used at all, even occasionally for ambiance. The dry-season neglect pattern here means birds, rodents, and debris accumulate quietly, and a liner that sat idle for nine months can be fully blocked by October. If you burn wood, sweep it every year. If you don’t, still have the cap and liner checked annually. Call (877) 516-7159 to schedule a free estimate either way.

My DuraFlex cap screen keeps getting clogged with leaves and nests. What can I do?
That’s the single most common DuraFlex issue we see in Willowbrook, and the fix is usually a new cap with a properly sized spark arrestor screen, not another cleaning. If your current cap screen has gaps or rusted mesh, birds will find their way back in. We install DuraFlex Round Top caps fitted correctly to the flue, which stops the cycle. Call (877) 516-7159 and we’ll tell you whether your existing cap is worth keeping.
Is it normal for a DuraFlex liner to rust in Willowbrook’s climate?
Some surface corrosion is normal, especially where marine-layer humidity meets soot in an idle flue. But rust at the joints or perforation through the liner wall is not normal and needs repair or replacement. A camera inspection tells us which one you’re dealing with. If you’re seeing rust flakes in the firebox or smell something metallic when the wind blows, call (877) 516-7159.
Can you service a DuraFlex liner that was installed without a permit?
Yes, and this describes a large share of the DuraFlex systems we work on in Willowbrook. Unpermitted doesn’t mean unsafe, but it does mean no one ever verified the liner was seated and connected properly. We’ll camera-inspect it, correct any misalignment, and bring the system to a safe operating condition. You don’t need a permit from us to make your chimney safe. Call (877) 516-7159 for an estimate.
What is the best way to prevent birds from nesting in my DuraFlex chimney?
Install a cap with an intact, properly fitted spark arrestor screen, and check it once a year. That’s it. In Willowbrook’s dry season, birds are actively looking for flues that are uncapped or have damaged screens, and a missing cap is an open invitation. We install DuraFlex Round Top and Multi-Flue caps regularly across the 90059 ZIP. Call (877) 516-7159 and we’ll get you set up before nesting season gets worse.
Service Areas Near Willowbrook
Our coverage includes the broader South LA and Inland Empire region beyond Willowbrook service area, including San Bernardino, Colton, and Rialto. If you’re looking for DuraFlex service in Tujunga, we cover that area too, as well as DuraFlex service in Koreatown. We dispatch crews across both counties.
Book Your DuraFlex Service in Willowbrook Today
If your DuraFlex cap screen is clogged, your fireplace smells, or you’ve never had the liner scoped, now’s the time. We’ll get a crew to your Willowbrook home, camera-inspect the system, and tell you exactly what’s needed and what can wait. Call (877) 516-7159 for a free estimate.
Written by Allen Prescott, Owner at San Bernardino Chimney Sweep, serving Willowbrook and Inland Empire homes.