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 Crestline, CA | Mantel Chimney Sweep
We provide independent Gelco chimney cleaning and repair across Crestline, including all 92325 properties, from full-time mountain homes to weekend cabins around Lake Gregory. What separates our Gelco work here is understanding how a burn-and-idle cycle at 4,600 feet glazes creosote faster than steady daily use does down the hill. If you own a Gelco fireplace or insert in Crestline, call (844) 821-5749 and we’ll inspect what’s actually happening inside your flue before any cleaning begins.
Why Crestline Residents Choose Us for Gelco Service
Most chimney sweeps can run a brush through a Gelco unit. Fewer know how these fireplaces behave after a Crestline winter, when freeze-thaw cycles have worked on the clay tiles and snow load has sat on the cap for months. We’ve swept, inspected, and rebuilt Gelco fireplaces across the San Bernardino Mountains long enough to recognize the difference between normal creosote and the glazed, hardened kind you get when a cabin burns hot for a few weekends and then sits cold. Roland Vega grew up in the Inland Empire and has spent more than a decade working on mountain chimneys, and he’s the one making sure our recommendations don’t pad your bill. We’re an independent shop, not affiliated with or authorized by Gelco, so what we tell you comes from the flue and firebox in front of us, not a manufacturer script. For everything from routine cleaning to full Gelco sales & service, we treat repair as the first option and replacement as the last.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Crestline
Here’s what we find in Gelco units up here, season after season:
- Cracked or spalled clay flue tiles from freeze-thaw. Gelco masonry fireplaces with clay-tile flues take a beating at 4,600+ feet. Water finds its way into small cracks, freezes overnight, and widens them. After enough Crestline winters, those tiles start to spall off into the flue, and that’s when creosote and moisture start reaching the surrounding masonry.
- Ice-capped multi-flue caps. Gelco factory-built pre-fab fireplaces often run a multi-flue cap. Snow and ice build on top, seal off the draft, and trap moisture against the cap itself. Corrosion follows. By early spring, some of these caps look like they’ve been sandblasted for a decade.
- Hardened, glazed creosote from weekend cabin use. This is the big one in Crestline. A cabin near Lake Gregory burns hard for two or three winter weekends, then goes cold for a month or more. That start-stop cycle bakes creosote into a hard, shiny glaze that a standard brush won’t remove. You need mechanical removal and sometimes chemical treatment to break it down.
- Bird and critter nests on the smoke shelf. Cabins left vacant through spring and summer give mountain birds every reason to move in. We’ve found nests packed tight against dampers, completely blocking the smoke path. The first fire of the season turns that into a chimney fire waiting to happen.
- Corroded dampers from trapped moisture. Gelco dampers take a beating when a capped chimney can’t breathe. Moisture sits at the damper level, rust sets in, and the damper either seizes shut or won’t seal. Either way, draft suffers and smoke backs up into the house.
Gelco Service in Crestline: What Local Conditions Mean for Your Equipment
Crestline’s mix of full-time residents and weekend cabin owners creates a burn-and-idle cycle that flatland chimney cleaners almost never see. A family burns their Gelco insert every night from December through February, the creosote builds up fast, and then the cabin sits cold until Memorial Day. That idle time lets the creosote harden and glaze. The next season’s first fire heats that glaze until it’s sitting at a few hundred degrees inside your flue, and that’s the fire you don’t see coming. Full-time Crestline residents deal with a different pattern: continuous winter burning, which produces softer creosote that brushes out easier, but also much more of it. Either way, an annual cleaning before burning season isn’t optional up here. It’s the difference between a fireplace and a fire claim. We see it every year in cabins off Lake Gregory and throughout the 92325 area; we plan our fall schedule around it. That’s why we recommend camera inspection as part of every Gelco cleaning in Crestline. You see what we see, and you decide what actually needs doing.
Gelco Models & Products We Service in Crestline
We work on the full spread of Gelco equipment found in Crestline homes: masonry fireplaces with clay-tile flues, factory-built pre-fab fireplaces with multi-flue caps, wood-burning inserts, and gas inserts with log sets. Parts matter up here. We fit OEM Gelco-spec caps, dampers, and liners when they’re available and correctly sized. When Gelco has discontinued a part, we move to quality aftermarket components that match or exceed the original spec. We keep common replacement caps and dampers on hand for the mountain units we see most often, so a Crestline repair doesn’t always wait on a parts truck from down the hill. We repair whenever the firebox, crown, and flue are structurally sound, and we only talk replacement when a cracked flue or failed firebox can’t be made safe.
See the difference
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AfterGelco Service Pricing in Crestline
Serving Crestline, CA — Our Local Coverage Area
We’re based in the Crestline area and offer Chimney Sweep – Crestline services to this community we know well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Crestline
Can you replace a damaged Gelco cap with something that holds up to mountain snow?
Yes. We fit OEM Gelco-spec caps when they’re available, and when they’re not – or when the original cap has already failed once under Crestline snow load – we move to a heavy-gauge stainless aftermarket cap that’s rated for the freeze-thaw and ice weight we see at 4,600 feet. The key is getting the cap sized to the flue and installed so it can’t trap moisture. Bring us a photo of your current cap, or better, let us inspect it and measure the flue. If it’s already corroding, replacing it before winter beats finding out after a storm. Call (844) 821-5749 for a free estimate.
Are you authorized by Gelco to service their fireplaces?
No. We’re an independent chimney company that works on Gelco equipment every week, but we’re not affiliated with or authorized by Gelco. That independence is useful to you: when we tell you a flue is cracked or a cap needs replacing, it’s because we saw it on camera, not because a manufacturer’s service bulletin told us to say it.
How long does a Gelco chimney cleaning take in Crestline?
Most Gelco cleanings take 45 to 90 minutes. Glazed creosote, which we see a lot of in weekend cabins, pushes that closer to two hours because we’re mechanically breaking up the deposits before we sweep. If we’re also doing a Level 2 inspection, budget another 30 minutes. We’ll give you a clear time window when you book.
Which Gelco models do you service?
We service Gelco masonry fireplaces with clay-tile flues, factory-built pre-fab fireplaces with multi-flue caps, wood-burning inserts, and gas fireplace inserts with log sets. If you’re not sure what Gelco unit you have, send us a photo or describe the cap and firebox and we’ll tell you what we’re looking at.
How much does Gelco chimney cleaning cost in Crestline?
Most Gelco cleanings in Crestline fall between $189 and $349, depending on the condition of the flue and how hard it is to access. If you’ve got glazed creosote, bird nests, or a corroded cap that needs replacing, those add to the job. We won’t recommend any of it without showing you the camera footage first. Call (844) 821-5749 for an exact quote – estimates are free.
Service Areas Near Crestline
We work throughout the San Bernardino Mountains and down into the Inland Empire. If you’re up the road in Gelco service in Lake Arrowhead or over in Gelco service in Lakeland Village, we’re already driving those roads. We also cover Moreno Valley, March Air Force Base, Loma Linda, Grand Terrace, and the surrounding mountain communities. If your cabin is anywhere in the Crestline service area, we’ll get there.
Book Your Gelco Service in Crestline Today
Before the snow hits and the first fire goes in, let’s get your Gelco flue inspected and cleaned. Roland and the team at Mantel Chimney Sweep are ready when you are. Call (844) 821-5749 for a free estimate and we’ll get you booked.
Written by Roland Vega, Owner at Mantel Chimney Sweep.