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 Montclair, CA | Santa Ana Chimney Sweep
We provide independent Montclair Chimney Sweep DuraFlex cleaning and liner service across the city, and the one thing that separates our work here comes down to this: the 1950s postwar brick fireplaces that fill this city often have original clay flue tiles that cracked years ago, and a DuraFlex liner sitting inside them can hide damage you’ll never see from the firebox. That’s why we treat a camera inspection as the real starting point on Montclair homes, not just a routine sweep. Call (855) 341-9658 for a free estimate.

Why Montclair Residents Choose Us for DuraFlex Service
Allen Becerra, our owner, learned the building trades at Santiago Canyon College before spending the better part of two decades inspecting chimneys across the Pomona Valley. He knows how DuraFlex liners behave in Montclair’s dry inland heat and how thermal cycling on exterior stacks loosens seams and joints over time. We’re an independent service provider – no manufacturer affiliation, no quota to push a reline you don’t need. Our DuraFlex sales & service work covers cleaning, repair, and parts replacement, but we’ll tell you plainly when a liner still has years left in it. For Montclair homeowners, that honesty matters more than a glossy pitch.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Montclair
- Hardened creosote glazing after the long idle season. Fireplaces in Montclair sit unused from spring through fall while inland heat bakes soot onto the liner wall. By the time heating season arrives, a standard brush skips right over it. We remove glazed creosote without gouging the stainless.
- Cracked clay tile behind a DuraFlex retrofit. The original 1950s flue tiles in postwar brick fireplaces were often undersized for the firebox. A liner can look clean from the firebox while the tile behind it has already failed. We catch this with a camera, not a guess.
- Rusted or missing caps and top plates after Santa Ana wind events. Wind-driven grit and debris drop straight onto the liner and into the smoke chamber when the cap fails. Montclair’s fall wind season makes cap inspection part of every service call we do.
- Liner seams loosened by wind vibration and thermal cycling. Exterior stacks in Montclair swing between hot firebox air and cold mountain-adjacent nights. That expansion and contraction abrades liner joints, especially around offsets in the original flue.
- Smoke smell in fall before the first fire. Leaves and debris packed against a cold liner create that stale smoky odor Montclair homeowners notice when they open the damper in November. Usually it’s a clogged cap or a packed smoke chamber – both fixable same day.
DuraFlex Service in Montclair: What Local Conditions Mean for Your Equipment
Here’s what we see on Montclair’s postwar tracts that we don’t see the same way in neighboring cities. Homes built in the 1940s through 1960s along streets like Monte Vista Avenue were framed around single-story stucco construction with interior-wall fireplaces and minimal clearance. The fireboxes were big for the living rooms they heated, but the original flue tiles were often undersized for that firebox volume. When a DuraFlex liner was dropped in decades ago – usually as a retrofit fix – it went inside tile that was already aging, sometimes already cracked. The liner can hold up beautifully while the clay behind it has split open. That’s exactly why a camera inspection, not a sweep, is the real product on these Montclair homes. A brush run will make the chimney look clean. It won’t tell you whether the liner is venting into a cracked tile cavity. We run the camera first, then clean what actually needs cleaning.
On a postwar stucco tract house off Monte Vista Avenue, a homeowner booked a routine fall sweep on a fireplace their family had used for decades. The camera run found the DuraFlex liner intact but the original clay tile around it cracked, and a rusted-out cap had let leaves pack the smoke chamber. We pulled the debris, cleaned the glazed creosote off the liner, and replaced the cap and top plate. The first fire that November drafted clean with no smoke spillback into the living room.
DuraFlex Models & Products We Service in Montclair
We work on the full DuraFlex stainless liner line: round single-wall flexible liners, insulated flexible liner kits, and oval flexible liners for tight or offset flues common in Montclair’s mid-century construction. We also service and replace DuraFlex top plates and cap termination assemblies. When a part fails, we fit DuraFlex-spec or quality aftermarket stainless components that match the liner’s actual diameter and offset. No forcing a universal cap onto an odd-sized 1950s chase. We stock common stainless caps, top plates, and dampers for fast turnaround on Montclair service calls.
See the difference
Before
After
Before
After
Before
AfterDuraFlex Service Pricing in Montclair
Most DuraFlex chimney cleanings in Montclair run between $180 and $340 depending on liner length, creosote condition, and whether cap replacement or debris removal is needed. A Level 2 camera inspection typically adds $150 to $300. Cap and top plate replacement usually runs $120 to $250 installed. Insulated liner kits and full reline work are quoted after the camera run – we won’t price a reline sight unseen. Every estimate is free and includes the inspection so you know exactly what you’re paying for before we start. Call (855) 341-9658, and we’ll give you a straight number.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair area and also provide DuraFlex in Claremont, 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 Montclair
Yes, on a 1950s Montclair home, a Level 2 inspection is the right call, not an upsell. The original flue tile behind a retrofit DuraFlex liner is often undersized and cracked, and a sweep alone won’t reveal that. A camera inspection shows whether the liner is venting properly or whether you’re one heating season away from a real problem. Call (855) 341-9658 and we’ll schedule the camera run with your sweep.
That smell in a Montclair chimney is almost always a debris-clogged cap or a smoke chamber packed with leaves and grit from the dry season. The odor backs down the liner when air pressure shifts. It’s a simple fix – we pull the cap, clear the debris, and the smell is gone before you light the first fire of the season.
Yes, and it happens often in Montclair during fall wind events. A cap that’s missing, rusted, or knocked loose lets wind-driven leaves and grit pour onto the liner and into the smoke chamber. If you see debris around the chimney crown after a wind event, call us. We’ll inspect the cap and top plate and replace them if they’ve failed.
You wouldn’t, not from the firebox. That’s the point of a camera inspection. The liner sits inside the original clay tile, and that tile is the layer that actually contains heat and gases if the liner has any gap or seam issue. On Montclair’s 1950s and 1960s fireplaces, we find cracked tile behind perfectly good-looking liners on a regular basis. The camera tells us in five minutes. Call (855) 341-9658 for a free estimate that includes the inspection.
Yes. We use chemical treatments and mechanical methods designed for stainless liners, not wire wheels that score the metal. The goal is removing the glazed creosote while leaving the liner’s surface smooth, because a gouged liner catches more soot on the next burn and becomes a cycle. We clean it properly the first time, and we’ll show you the before and after on camera.
Service Areas Near Montclair
While we’re based in the Pomona Valley and serve Montclair service area directly, we also run calls into nearby communities. You’ll find us on the road in La Habra, Cerritos, East La Mirada, Portola Hills, La Mirada, and Aliso Viejo. For DuraFlex work in those areas, see our DuraFlex service in Willowbrook and DuraFlex service in La Verne pages.
Book Your DuraFlex Service in Montclair Today
If you own a Montclair home with a DuraFlex liner, or a postwar brick fireplace that hasn’t been inspected in years, call us. We’ll schedule the sweep, run the camera, and tell you exactly what’s going on behind the tile. (855) 341-9658.
Written by Allen Becerra, Owner at Santa Ana Chimney Sweep, serving Montclair and offering DuraFlex service in Upland and the Pomona Valley since day one.