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 | Limestone Chimney Sweep
We clean and service Gelco fireplaces throughout Montclair’s 91763 ZIP, and most of what we find here has less to do with heavy creosote and more to do with leaves, twigs, and decades of disuse. If you’ve got an original Gelco masonry fireplace in a 1950s – 70s tract home, we can sweep it, inspect it, and fix what’s wrong, whether that’s a clogged cap or a cracked clay flue tile. Call (855) 341-5439 for a free estimate, and we’ll tell you exactly what your chimney actually needs.
Why Montclair Residents Choose Us for Gelco Service
We’re an independent chimney company, which matters when you own a Gelco fireplace that’s been sitting in a Montclair ranch home since the Eisenhower administration, and the same expertise applies to Chino Gelco service. We’re not affiliated with Gelco and we don’t pretend to be. What we are is a crew that’s swept, inspected, and repaired hundreds of original Gelco clay-tile flues and prefab fireboxes across this city, so we know how these systems age in this specific climate. Hot, dry summers followed by months of non-use do predictable things to mortar joints and dampers. We’ve seen it enough times to know what to look for before you light the first holiday fire.
Warren Tilsley, our owner, came up through the HVAC and sheet metal trades and spent years working alongside experienced sweeps before starting Limestone Chimney Sweep. That background means we approach a Gelco chimney the way a sheet metal guy would: measure the opening, check the draft, and fix what’s actually broken instead of handing you a report and a recommendation for a full rebuild you may not need. We carry the materials to fix what we find, and we’ll show you the problem before we quote the repair.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Montclair
- Clogged caps from eucalyptus and pine debris. Montclair’s north-side foothill lots sit tight against mature tree canopy, and Gelco chimney caps here collect leaves, twigs, and bird nests by the first cold snap. The result is a fireplace that smokes into the living room on its first lighting of the season. We clear the cap, check for nests, and often recommend a multi-flue cap that stays clear longer.
- Cracked and spalled clay flue tiles. Original Gelco clay-tile liners in 1950s – 70s fireplaces take decades of inland heat and disuse, and the tiles eventually crack at the mortar joints. Once that happens, creosote and moisture work into the masonry chase. We sweep the flue carefully and assess whether the liner needs repointing or a HeatShield restoration.
- Rusted or seized dampers. A Gelco damper that sits unused through a dry Montclair summer, then gets hit with Santa Ana-driven moisture and debris, tends to seize or rust open. When the damper won’t seal, your fireplace leaks conditioned air year-round. We replace dampers with aftermarket units that match the original Gelco opening dimensions.
- Draft reversals on windy foothill nights. The San Gabriel foothills wind corridor pushes air back down uncapped or poorly capped flues. You light a fire, and the smoke curls into the room instead of up the chimney. This is almost always a cap or draft issue, not a structural one, and it’s one of the most common Gelco-related calls we get in Montclair.
- Hidden creosote behind cosmetic remodels. Montclair homeowners often update the firebox face or hearth without touching the Gelco damper, smoke shelf, or clay liner behind it. That leaves old creosote and mortar gaps hidden until someone lights a fire. A Level 2 inspection finds what the remodel papered over.
Gelco Service in Montclair: What Local Conditions Mean for Your Equipment
Here’s the thing about owning a Gelco fireplace in Montclair that nobody tells you until the first cold night: the north side of town backs into open washes and mature eucalyptus and pine, and every Santa Ana event pushes airborne leaves, twigs, and ash straight down your chimney cap. By Thanksgiving, a lot of these caps are packed solid. The first fire of the season doesn’t draft; it smokes out the living room and sets off the detector. In a city like Montclair, where fireplaces are used occasionally rather than daily, a sweep is often less about creosote and more about debris removal and cap repair. We treat every Gelco cleaning here as a draft-and-debris job first, because that’s what the local conditions actually cause. If your flue happens to need a deeper creosote removal, we’ll do that too, but we won’t sell you a heavy clean you don’t need.
Gelco Models & Products We Service in Montclair
We work on the Gelco systems most common in Montclair’s postwar housing stock: original clay-tile flue liners in masonry brick fireplaces, prefab metal fireboxes in mid-century tract home inserts, gas-log fireplace inserts and burner assemblies, and the dampers and firebox assemblies that came with single-story ranch homes, with the same capabilities for Gelco repair in Los Serranos. When a part needs replacing, we stock quality aftermarket dampers, caps, and liners that match the original Gelco dimensions, and we source OEM-style components for prefab fireboxes where a direct fit matters. We’ll also tell you straight when a repoint-and-reliner will outlast a rebuild, and when a badly spalled Gelco firebox has reached the end of its useful life.
See the difference
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AfterGelco Service Pricing in Montclair
A standard Gelco chimney sweep and Level 1 inspection in Montclair typically runs between $180 and $340, depending on flue condition, cap accessibility, and how much debris has accumulated. If you add a Level 2 inspection, expect to pay roughly $100 to $250 more. Cap replacement, whether a single-flue or multi-flue unit, usually falls in the $200 to $500 range installed. Every estimate starts with a free phone conversation and an on-site look, and the price you’re quoted is the price you pay. Call (855) 341-5439 and we’ll give you an exact number for your fireplace, not a range guess.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair area and know this community well, and we also handle Gelco repair in Ontario. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Montclair
If the fireplace has gone unused for more than a couple of seasons and you’ve done any cosmetic work around the firebox, a Level 2 inspection is the right call in Montclair. A Level 1 covers the readily accessible parts during a routine sweep; a Level 2 goes further with inspection of the flue interior and hard-to-see areas, which matters when a remodel may have hidden old creosote or a cracked Gelco clay tile. Call (855) 341-5439 and we’ll help you decide which level fits your situation.
In Montclair, it’s almost always debris. Eucalyptus leaves, pine needles, and bird nests pack into the cap during the dry months, and the first fire can’t draft through the blockage. Santa Ana winds can also push smoke back down a poorly capped flue. We clear the cap, check the draft, and replace the cap if needed. Call (855) 341-5439 and we’ll get your first fire drafting properly.
Yes. We sweep clay-tile Gelco liners with brushes sized to the flue dimensions and inspect for cracks as we go. Clay tile from the 1950s – 70s can be brittle, so we work carefully and tell you when a crack is cosmetic and when it’s a fire-safety issue that needs repointing or a HeatShield restoration. Call (855) 341-5439 for an assessment of your liner.
For most north-side Montclair homes backing into eucalyptus and pine, yes. A multi-flue cap with a good mesh screen keeps leaves, twigs, and birds out far better than an open flue or a worn single cap, and it reduces draft reversals on Santa Ana nights. We install caps sized to your Gelco flue and show you the difference before we quote it. Call (855) 341-5439 and we’ll take a look at what’s on your chimney now.
Almost never. A seized or rusted-open Gelco damper is a component failure, not a structural one. We replace the damper with an aftermarket unit that matches the original opening, and in most cases the fireplace is back in service the same day. A full rebuild is only worth discussing when the firebox itself is spalled beyond repair. Call (855) 341-5439 and we’ll tell you which situation you’re in.
Service Areas Near Montclair
Limestone Chimney Sweep serves Montclair and the surrounding foothill and coastal communities. If you’re in Villa Park, Huntington Beach, Midway City, Portola Hills, or Westminster, we cover those areas too. We also provide Gelco service in Covina and Gelco service in South El Monte for homeowners further west. See our Montclair service area page for full coverage details, or browse our Gelco sales & service page for the full range of what we do.
Book Your Gelco Service in Montclair Today
If your Gelco fireplace has been sitting unused since spring, now’s the time to get it swept and inspected before the first cold snap hits Montclair, or to arrange Gelco repair in Pomona if you’re in that area. Call (855) 341-5439 and we’ll schedule your sweep, inspect what’s there, and fix what needs fixing. A clean chimney isn’t a luxury, it’s just the part of your house you can’t see doing its job right.
Written by Warren Tilsley, Owner at Limestone Chimney Sweep, serving Montclair and the surrounding foothill communities.