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 Mentone, CA | Chestnut Chimney Sweep
We provide independent DuraFlex chimney cleaning and service across Mentone, ZIP 92359. What makes our DuraFlex work different here comes down to one thing: Mentone sits at the mouth of Mill Creek Canyon, where Santa Ana winds drive oak leaves and pine needles into chimney caps all winter. When a DuraFlex-lined fireplace in Mentone starts smoking, the cap is usually clogged, not the flue. Call (855) 360-4975 and we’ll figure out which one it is.
Our crew has worked exclusively on stainless and insulated prefab chimney systems for years, and DuraFlex is one of the systems we know down to the joint and the adapter collar. We are an independent service provider, not affiliated with or authorized by DuraFlex. That independence means our only obligation is to you and the venting that actually fits your appliance. Roland Cifuentes, our owner, has spent the better part of two decades working chimneys across the Inland Empire, from DuraFlex repair in Redlands to Mentone and beyond, and he built this company around honest inspections and clean liner work. If you own a home in Mentone with a DuraFlex liner, cap, or reline kit, we’re the crew that can tell you exactly what’s happening inside it. Call (855) 360-4975 for a free estimate.
Why Mentone Residents Choose Us for DuraFlex Service
DuraFlex liners show up in a lot of Mentone homes, and for good reason. The Pro stainless flexible reline kits and insulated double-wall systems hold up well in the foothills when they’re installed correctly and serviced on schedule. But the same canyon weather that makes Mentone a nice place to live also puts real stress on stainless flue components. We see it every season: dried-out insulation jackets, caps packed with wind-blown debris, tee joints that loosened when a crown patch went in wrong.
Roland spent his early years near the Foothill Boulevard corridor in Rialto, then picked up heating and venting fundamentals at Chaffey College in Rancho Cucamonga. He got into this trade partly because his father-in-law’s chimney nearly caused a house fire, and partly because he liked the idea of a job where the results are real and the customer sleeps better that night. That’s the thinking we bring to every Mentone job. We stock OEM-compatible DuraFlex components and UL-listed aftermarket caps and top plates, so we can usually complete a cap replacement or liner reseal in one visit. No hand-wringing, no mystery diagnosis. We tell you what we found, show you what it looks like, and fix what actually needs fixing. Learn more about our DuraFlex sales & service expertise.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Mentone
- Clogged caps and spark arrestors. Wind off Mill Creek Canyon drives oak leaves, pine needles, and grit straight into exterior chimney tops. The mesh on a DuraFlex cap fills up, the fireplace smokes, and the homeowner thinks it’s creosote. We pull the cap, clear it, and check the liner below. Usually the flue is fine.
- Degraded insulation jackets. DuraFlex insulated liners have a stainless inner wall wrapped in an insulation jacket. Mentone’s long dry summers bake that jacket, and over years it crumbles around the base and at elbows. Once the jacket gaps, the UL 1777 zero-clearance envelope breaks. We inspect, document, and recommend relining when the jacket has failed.
- Pitted and rusted inner walls. On wood-burning systems, a clogged cap traps moisture against the stainless inner wall through the off-season. In Mentone, that’s oak leaves holding damp against the liner for five or six months. The result is pitting and rust. We find it early during routine cleaning and save you a bigger repair later.
- Loose tee and elbow joints. Older Mentone ranch homes with original clay-tile flues often got DuraFlex relines years ago. If a mason patched the crown over the top plate without re-securing the liner, the tee or elbow can pull apart. We see this regularly on mid-century homes throughout Mentone. It’s a draft leak and a fire-safety concern.
- Wind-shifted top plates and caps. Santa Ana gusts off the canyon mouth are strong enough to shift a top plate that wasn’t bonded down correctly. Once the plate moves, the liner is no longer sealed at the crown and water runs down the outside of the flex. We reseal the assembly and set the cap properly.
DuraFlex Service in Mentone: What Local Conditions Mean for Your Equipment
Here’s the thing about owning a DuraFlex system in Mentone specifically: your chimney cap is fighting a battle most Southern California chimneys don’t face. The canyon-mouth location means wind comes down Mill Creek Canyon and slams straight into exterior chimney stacks. That wind carries whatever the canyon is shedding: oak leaves from the lower foothills, pine needles from higher up, fine grit from the dry wash. It all lands on the spark arrestor mesh and stays there.
On a mid-century ranch home off Mill Creek Canyon Road, our tech pulled the cap on a DuraFlex insulated reline and found the spark arrestor packed solid with oak leaves and pine needles. The homeowner had called because the fireplace smoked whenever the canyon wind shifted. We cleared the cap, found the tee joint at the smoke chamber had worked loose under an old crown patch, reseated the DuraFlex tee, and set a new multi-flue cap. The fireplace drafted clean with no creosote behind the blockage. That’s the Mentone pattern in one visit: a clogged cap, not a dirty flue, is usually why the fireplace smokes when the winds shift. If you’re noticing that on your system, call us before you book a standard sweep. A cleaning won’t fix a cap that can’t breathe.
DuraFlex Models & Products We Service in Mentone
We work on the full DuraFlex lineup you’re likely to find in a Mentone home. That includes DuraFlex Pro stainless flexible reline kits, DuraFlex insulated flexible chimney liner kits with the double-wall design, DuraFlex stainless rigid liner sections for taller stacks, and DuraFlex top-plate and cap assemblies for masonry chimneys. If you’re not sure which one you have, we’ll tell you during the inspection. For repairs, we match the manufacturer’s own stainless liner and adapter components wherever the line is still current. When a direct-fit OEM part is no longer available, we use UL-listed aftermarket caps and top plates, and we’ll tell you exactly what we’re installing and why. For broader coverage, see our Mentone service area page.
We keep common DuraFlex components stocked for fast turnaround in Mentone, so a cap replacement or joint reseal doesn’t turn into a two-week wait. If your liner has failed insulation or a rusted-out inner wall, relining with a fresh listed system is almost always cheaper and safer than patching it. We say so plainly, and we’ll show you the camera evidence to back it up.
See the difference
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AfterDuraFlex Service Pricing in Mentone
Chimney sweeping for a DuraFlex-lined fireplace in Mentone typically falls between $180 and $340, depending on liner condition, creosote volume, and whether we’re also clearing a clogged cap or spark arrestor. Cap replacement on a DuraFlex system runs $250 to $450 for the part and install. Level 2 inspection, which includes camera work, lands around $150 to $300. These are the same ranges we quote across the Inland Empire, including DuraFlex in Yucaipa, so you’re not paying a Mentone markup.
What drives cost here is access, liner condition, and whether the cap needs full replacement or just clearing. We give you a flat-price quote before we book anything, so there’s no surprise at the end. Our free estimate includes a visual inspection and a straight answer on what needs doing now versus what can wait. Call (855) 360-4975 and we’ll get you a number.
Serving Mentone, CA — Our Local Coverage Area
We’re based in the Mentone area and know this community well. Use the map below to see our service coverage — we also provide DuraFlex service in Highland and nearby areas, so if you’re close, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Mentone
In Mentone, it’s usually the cap. Canyon winds pack oak leaves and pine needles into the spark arrestor mesh until the flue can’t pull air. Creosote builds on the inner walls over time, but a wind-triggered smoke problem is almost always a clogged cap or a wind-shifted top plate. We’ll pull the cap and check both. If the cap is the problem, $250 to $450 usually takes care of it. Call (855) 360-4975 and we’ll diagnose it over the phone first.
You usually can’t tell from the firebox. A failed insulation jacket shows up as crumbling material around the liner base, gaps at elbows, or an exterior chimney that gets unusually hot during use. We find these during camera inspection or when we pull the cap for routine cleaning. That’s why we recommend a Level 2 inspection on DuraFlex systems that haven’t been opened up in a few years, especially in Mentone where summer heat cycling is hard on insulation jackets.
Most of the time, yes. If the liner walls are solid and the tee and elbow joints are seated, a new cap and properly bonded top plate fix the seal at the crown. We won’t push a reline you don’t need. But if the camera shows rusted-out inner walls or a failed jacket, patching the top won’t make the system safe. We’ll show you the footage and let you decide with the facts in front of you. Estimates are free at (855) 360-4975.
Have it inspected before the first fire. Long idle periods in Mentone’s dry heat let insulation jackets degrade, and a cap that hasn’t moved in years could be packed with canyon debris. We check the liner walls, the tee and elbow joints, the top plate seal, and the cap all in one visit. If it’s clean, you light the first fire with confidence. If it isn’t, you know before it becomes a house fire.
Not on the liner itself. The stainless doesn’t need waterproofing. What does matter on an exterior Mentone stack is the crown seal and the top plate bond. If water runs down the outside of the liner because the crown cracked or the plate shifted, the real problem is above the liner, not in it. We match the right repair to the failure instead of coating everything with sealant and hoping. Call (855) 360-4975 for a free estimate and we’ll tell you what your stack actually needs.
Service Areas Near Mentone
We take DuraFlex service calls throughout the surrounding foothills and valley communities, including Rialto, Bloomington, Muscoy, Fontana, Colton, and San Bernardino. If you’re in one of those areas and running a DuraFlex system, our DuraFlex service in Moreno Valley page covers one end of our range, and DuraFlex service in Lake Arrowhead covers the mountain side. Mentone stays on our regular route either way.
Book Your DuraFlex Service in Mentone Today
Whether you need us in Mentone or for DuraFlex service in Calimesa, canyon weather isn’t going to stop pushing leaves into your cap. Call (855) 360-4975 and we’ll get your DuraFlex system cleaned, inspected, and sealed before the next Santa Ana blows through. A clean flue is a quiet house, that’s really all there is to it. Free estimates, flat pricing, and work you can verify with your own eyes.
Written by Roland Cifuentes, Owner at Chestnut Chimney Sweep, serving Mentone and the Inland Empire.