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 Upland, CA | Ontario Chimney
We provide independent Gelco chimney cleaning and Chimney Sweep in Upland across the area, from the citrus-era bungalows near downtown to the foothill homes in 91784. The thing that shapes Gelco work here more than anything else is what Upland’s dry season leaves inside an uncapped flue: eucalyptus litter, squirrel nests, and wind-driven debris that sits for months before your first winter fire. Call Ontario Chimney at (833) 467-7685 for a free estimate, and we’ll show you exactly what’s in there before we touch a brush.
Why Upland Residents Choose Us for Gelco Service
Al Vickers grew up in the Sultana neighborhood of Ontario, a few blocks from Euclid Avenue, and he’s spent the better part of three decades learning what the Inland Empire does to a chimney. That matters when you own a Gelco prefab or insert in Upland, because the failure patterns here aren’t the ones you’ll read about in a generic fireplace manual, unlike what you might find with Rancho Cucamonga Gelco service. We’ve pulled enough Gelco fireboxes apart to know which refractory panels crack under sudden holiday heat after months of idle dry-season sitting, and which dampers seize from moisture that finds its way down an uncapped flue in north Upland.
We stock OEM Gelco parts for the repairs we do most often in Upland, and we keep aftermarket equivalents on hand for the older models where Gelco has discontinued the original. You get one crew that can clean, inspect, and repair in a single visit instead of a cleaner who finds a problem and tells you to call somebody else. That’s the difference between maintenance and a repair that actually gets done.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Upland
- Refractory panel cracking in Gelco prefab fireboxes. Upland fireplaces sit idle through long, hot summers, then get hit with heavy holiday burns. The thermal shock cracks refractory panels, and once a panel spalls, you’re losing firebox protection. We replace panels with OEM Gelco or dimension-matched aftermarket equivalents and re-seat them properly.
- Seized dampers and degraded gaskets on Gelco gas inserts. In north Upland’s 91784 ZIP, uncapped flues collect eucalyptus litter and moisture that sits for months. That moisture works its way down to damper assemblies and gasket channels, and by the time you light the insert for the first cold snap, the damper won’t move and the gasket won’t seal. We free, re-seat, or replace both.
- Warped glass frames and brittle gaskets from infrequent, intense burn cycles. Upland doesn’t have a long heating season, which means Gelco insert doors heat up hard and then cool for months. That cycle warps frames and bakes gaskets brittle. We re-gasket doors and straighten frames when possible, and we’ll tell you plainly when a door has gone too far to salvage.
- Loose or corroded Gelco metal chimney sections and failing caps. At the wildland interface where Upland’s foothills meet the Angeles National Forest boundary, ember intrusion is a genuine concern. Corroded sections or a failing spark arrestor mean embers can get where they shouldn’t. We inspect every section and replace caps with wildlife-rated spark arrestors when the old one’s had it.
- Debris and animal nests in uncapped Gelco flues. This is the single most common thing we see in Upland, especially north of the 210. Birds, squirrels, and eucalyptus leaves fill uncapped flues during the dry months, and that debris becomes a fire hazard the first time you light up in November.
Gelco Service in Upland: What Local Conditions Mean for Your Equipment
Here’s something true about Upland that doesn’t apply the same way a few miles south: the 91784 ZIP backs directly onto the Angeles National Forest boundary, and the Santa Ana wind corridor drives debris and embers down flues from the foothill side. Homes in north Upland routinely fill uncapped Gelco chimneys with eucalyptus litter and squirrel nests during the dry months, meaning a pre-season inspection there is as much about clearing wildlife debris and checking spark arrestor integrity as it is about sweeping creosote — a different challenge than San Antonio Heights Gelco service faces. On a foothill property in north Upland, our tech pulled a squirrel nest and a load of wind-driven eucalyptus leaves out of an uncapped Gelco metal flue before sweeping the firebox. The Gelco prefab’s refractory panel had a hairline crack and the spark arrestor was half-clogged, so we replaced the cap with a wildlife-rated spark arrestor and re-seated the panel ahead of the winter burn season. If you own a Gelco in 91784 or anywhere along the foothill edge, that’s the inspection you need, and it’s different from what a flatland chimney simply doesn’t accumulate the same way.
Gelco Models & Products We Service in Upland
Our crew works on the full range of Gelco equipment found in Upland homes: prefabricated wood-burning fireplaces with steel fireboxes and refractory panels, factory-built double and triple-wall metal chimney systems, gas fireplace inserts with glass fronts and gasketed doors, and inserts with blowers and refractory liner panels. We fit OEM Gelco parts where they’re available for firebox panels, gaskets, dampers, and chimney sections, and when Gelco has discontinued a part we turn to quality aftermarket equivalents matched to exact dimensions and clearances. If a firebox or chimney section is structurally compromised, we’ll tell you straight whether repair makes sense or replacement is the honest call. You can learn more about our broader Gelco sales & service expertise, but here’s what matters for Upland: we stock the parts these mountain-edge chimneys actually need, which keeps your service from dragging out while something ships from a warehouse.
See the difference
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AfterGelco Service Pricing in Upland
Gelco chimney cleaning in Upland typically runs $150 to $250 for a standard prefab or insert sweep, with Level 2 inspections from $250 to $450 because they involve video scanning the full flue. Add-on work like cap replacement, gasket replacement, or refractory panel repair gets quoted on the spot and you’ll always see the price before we start. What drives cost here is access: two-story foothill homes and steep roof pitches on some north Upland streets take longer, and a flue full of wildlife debris takes longer to clear than a light creosote film. Every estimate is free and includes a camera inspection with a photo report, so you know exactly what you’re paying for. Call (833) 467-7685 to get a firm number for your Gelco setup.
Serving Upland, CA — Our Local Coverage Area
We’re based in the Upland area and know this community well, and we also provide Gelco service in Claremont. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Upland
Cracked or spalled refractory panels can usually be replaced individually, and on most Gelco prefab fireboxes that’s a straightforward repair we do with OEM or dimension-matched aftermarket panels. The unit is only done when the steel firebox itself has warped, rusted through, or lost structural integrity, which a proper inspection will tell you in minutes. If you’re seeing cracks, call (833) 467-7685 and we’ll put a camera on it before recommending anything.
Because uncapped flues in north Upland’s 91784 ZIP sit directly under the flight path of foothill wildlife and the Santa Ana wind corridor, which pushes eucalyptus litter down the flue during the dry months. The fix is a properly fitted wildlife-rated spark arrestor cap, which blocks debris and animals while still letting the flue draft correctly. We install them on Gelco chimneys throughout Upland, and it’s the single most effective thing a foothill homeowner can do for their fireplace.
Yes. Gelco gas inserts don’t build creosote the way wood-burning prefabs do, but their gaskets, glass frames, dampers, and venting connections wear differently and need specific attention. In Upland’s dry climate the biggest issue is gasket degradation and moisture corrosion from long idle periods between infrequent, intense burn cycles. We service both types and know which failure patterns to look for on each.
Often, yes. A seized Gelco damper is frequently the result of moisture and fine debris binding the hinge or the thermostatic coil, which we can free, lubricate, and re-seat in many cases. If the metal has rusted through or the linkage is broken, replacement is the honest call. We’ll show you the damper on camera before we recommend a repair or replacement.
Once a year, even with light winter use, because Upland’s long dry season is when the real problems accumulate: wildlife nests, wind-driven debris, and spark arrestors that have quietly degraded. A light-use fireplace can have a completely clogged cap or a hairline refractory crack without you knowing it until the first heavy burn. Call (833) 467-7685 to schedule an annual inspection and we’ll get you on the calendar before the burn season rush.
Service Areas Near Upland
We service all of Upland, including 91784, 91785, and 91786, and we work throughout the surrounding foothill and valley communities. That includes Upland service area coverage for every neighborhood from the 210 corridor south to the 10. We also handle Gelco service in Montclair for homeowners just west of Upland, and Gelco service in Chino for properties further south. Ontario, Rancho Cucamonga, and Claremont are all in our regular rotation as well.
Book Your Gelco Service in Upland Today
If you own a Gelco fireplace or insert in Upland, the best time to book is before the burn season fills our calendar and before another dry-season cycle adds more debris to your flue. A clean flue isn’t a luxury – it’s just how the thing is supposed to work. Call (833) 467-7685 now and we’ll get your Gelco inspected, cleaned, and winter-ready.
Written by Al Vickers, Owner at Ontario Chimney, serving Upland and the Inland Empire since the early days of foothill fireplaces and questionable cap installations.