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.
Gelco Chimney Cleaning in Montclair, CA | Ashwood Chimney Sweep
Gelco chimney cleaning in Montclair usually runs between $189 and $349 depending on what’s inside your flue and how long it’s been since anyone looked at it. We’re an independent chimney company serving all of Montclair’s 91763, and the thing that changes our work here versus other cities is the age of the fireplaces: most of the Gelco units we open up are sitting in 60-year-old masonry chimneys that have never had a camera inside them. We carry the brushes, rods, and replacement components to handle Gelco fireplaces and inserts without guessing. Call (833) 805-3229 to schedule a sweep or inspection.
Why Montclair Residents Choose Us for Gelco Service
We’ve spent close to two decades pulling creosote out of chimneys across the Pomona Valley, and Claremont Gelco service calls are among the many Gelco fireplaces we see in these homes. Norm Castillo, our owner, came through the HVAC and building systems program at Chaffey College before narrowing his focus to chimneys, flues, and venting, so when we open a Gelco unit in Montclair we’re looking at the whole system, not just the part you can see from the living room. Our work isn’t authorized by Gelco and we don’t claim to be a factory service center. What we are is a local crew that’s cleaned and repaired enough Gelco fireplaces in these 1950s and 60s tract homes to know exactly where they fail. We stock OEM-compatible components for common Gelco repairs and use professional-grade aftermarket parts where the factory part isn’t the best option. If your Gelco fireplace in Montclair hasn’t been inspected since the Carter administration, we’re the ones to call first.
Key takeaways:
- Independent Gelco service, not manufacturer-affiliated, so our only interest is your fireplace working safely
- We service all four Gelco product lines common in Montclair homes
- Camera inspection comes standard because that’s the only way to see what 60 years of heat cycles did to your flue
- Free estimates over the phone for Montclair addresses in 91763
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Montclair
- Cracked clay flue tiles. The original Gelco masonry fireplaces in Montclair’s 1950s and 60s tract homes were built with clay tile liners, and after five or six decades of heating and cooling cycles those tiles crack. You won’t see it from the hearth. Our camera finds it, usually at the same depth where the flue passes through the attic.
- Glazed creosote that won’t brush out. Montclair fireplaces sit unused from roughly April through October, and that’s long enough for creosote to harden into a glaze that standard sweeping tools slide right over. We use chemical treatments followed by mechanical removal to get the flue actually clean, not just visually darker.
- Deteriorated mortar crowns. Santa Ana winds and near-constant summer sun beat on exposed chimney crowns in Montclair. The mortar cracks, water gets in, and the next thing you know the damper is rusted and the firebox smells musty. We repair crowns and install proper caps before the damage reaches the firebox.
- Rusted dampers and firebox panels on Gelco inserts. Montclair homes with Gelco inserts often have original caps that failed years ago. Moisture follows the flue down and settles on metal components. We replace dampers with OEM Gelco parts when available and assess whether the firebox panel can be repaired or needs replacement.
- Smoke backing into the room on windy days. The Pomona Valley gets strong afternoon winds, and a Gelco fireplace that drafts fine on a still evening can push smoke back into the house when the wind shifts. Often the fix is a properly sized cap, not a rebuild. We diagnose before we recommend anything.
Gelco Service in Montclair: What Local Conditions Mean for Your Equipment
Here’s something you won’t read on a generic Gelco page. Montclair’s housing stock is dominated by single-story stucco tract homes built during the 1950s and 60s along the Pomona Valley floor, and in those original builds the masonry fireplace was a standard feature, not an upgrade. That means the Gelco fireplaces in these homes are almost all original installations now running 60-plus years of winter heat cycles and summer idle periods, and we’ve handled Gelco repair in Ontario for similar vintage systems. The clay flue tiles in those chimneys were never meant to last this long, and in Montclair specifically, they crack in a predictable pattern: thermal stress from the hot firebox below meets cool nighttime air after the fire dies. We see the same failure over and over in homes near Montclair Plaza and along the older streets off Holt Boulevard. A crack starts hairline and invisible, then widens enough to let creosote seep behind the tile into the wall cavity. A standard sweep of that chimney won’t find the crack because the tile edges still line up. It takes a Level 2 camera inspection. If you own a Gelco fireplace in a Montclair home from this era and nobody has ever put a camera up your flue, assume the crack is there until we prove otherwise. That’s not scare talk. That’s the reality of what we find.
Gelco Models & Products We Service in Montclair
We work on the full Gelco lineup as it appears in Montclair homes: Gelco masonry fireplaces (the original brick builds), Gelco factory-built fireplaces (prefab metal units), Gelco fireplace inserts (the retrofits adding efficiency to old fireboxes), and Gelco gas fireplaces. For critical components like dampers and firebox panels, we use OEM Gelco parts when they’re available. For generic items like caps and flashing, we use high-quality aftermarket components sourced from professional trade suppliers such as Olympia Chimney and Copperfield, because those parts often outperform the originals. Our approach is repair-first where it’s safe. We’ll always give you an honest repair-or-replace assessment. Many Gelco fireplaces in Montclair are repairable. Some aren’t, and we’ll tell you that plainly. For broader Gelco sales & service context, this page covers only our cleaning and repair work in Montclair, but our team handles Gelco units throughout the Inland Empire.
See the difference
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AfterGelco Service Pricing in Montclair
Gelco chimney cleaning in Montclair typically ranges from $189 to $349 depending on creosote volume, flue condition, and whether you have an insert or a traditional masonry fireplace. A Level 2 inspection with camera runs $200 to $450 and is the right call if your fireplace is original to a 1950s or 60s home and has never been camera-inspected. Crown repairs, cap installation, and damper replacement are quoted after we see the chimney, because the condition of a 60-year-old crown in Montclair’s sun varies from house to house. The free estimate covers the call and the walkthrough. The camera inspection is the only way to know what you’re actually dealing with. Call (833) 805-3229 and we’ll give you a straight number before we ever schedule the appointment.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair 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 – Gelco Chimney Cleaning in Montclair
Yes, if the fireplace is original and has never been camera-inspected, you need a Level 2 inspection before your next burning season. The clay flue tiles in Montclair’s 1960s-era chimneys crack from thermal stress, and you can’t see that from the firebox. We’ve found cracked tiles in more Gelco masonry fireplaces in Montclair than we’ve found intact ones. Call (833) 805-3229 to book an inspection.
Every 25 to 30 fires or at least once a year, whichever comes first. Montclair homeowners who burn for practical heating in the winter can accumulate enough creosote in one season to warrant a second sweep, especially if you’re burning softwood or wood that hasn’t been fully seasoned. If you hear a crackling sound in the chimney while the fire burns, that’s creosote igniting, and you need a sweep now.
Usually it’s a draft problem caused by a clogged flue, a partially closed damper, or a cap that’s too restrictive for the insert. In Montclair’s windy afternoons, negative air pressure inside the house can also pull smoke back down the chimney, the same issue we address with Gelco repair in Upland. We’d start with a sweep and a draft test, then check the cap and flue size before recommending any bigger repair.
Most cracked crowns in Montclair can be repaired with a proper crown coat or resurfacing, not a full rebuild. It depends on how far the cracking has progressed and whether water intrusion has already damaged the flue or firebox. We’ll tell you which one you need after we see it, and we’ll show you the photos so you’re not taking our word on faith. Get a free assessment at (833) 805-3229.
Yes, and in Montclair it’s one of the most common requests we get. Failed or missing caps are a leading cause of water damage in older Gelco chimneys, and the Santa Ana winds can carry enough debris to clog an open flue. We install multi-flue caps sized to your specific Gelco unit, and that’s an aftermarket component we stock locally for fast turnaround on Gelco service in La Verne and throughout the valley.
Service Areas Near Montclair
We run Gelco service calls from our Inland Empire base into Fontana, Bloomington, Rialto, Sunnyslope, Glen Avon, and Muscoy. For homeowners further east, see our Gelco service in Redlands and our Gelco service in Woodcrest. We cover all of Montclair service area including every street in 91763.
Book Your Gelco Service in Montclair Today
If your Gelco fireplace hasn’t been swept this year, or if you’ve never had a camera in the flue, now’s the time to get on our schedule. We service all of Montclair, and appointments fill up before the winter burn season hits. Call Norm and the team at (833) 805-3229 for a free estimate and straight answers. A clean flue isn’t a luxury – it’s just the job done right.
Written by Norm Castillo, Owner at Ashwood Chimney Sweep, serving Montclair and the surrounding Inland Empire for close to two decades.