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 West Covina, CA | Ashwood Chimney Sweep
We’re an independent chimney sweep that services Gelco fireplaces, inserts, and venting throughout West Covina. The thing that sets our Gelco work here apart: we know the older tract homes south of the 10 Freeway almost always have fireplaces sharing a chimney with the furnace vent, and we camera the whole stack, not just the firebox, before we call it clean. We’re not authorized or endorsed by Gelco, and we say so plainly. What we offer is documented work, done right. Call (833) 805-3229 for a free estimate.
Why West Covina Residents Choose Us for Gelco Service
Most chimney sweeps can run a brush up a flue. Fewer actually understand what they’re looking at when a Gelco firebox from the Eisenhower era hasn’t been touched in thirty years. We’ve worked on Gelco sales & service equipment across the San Gabriel Valley long enough to know the failure patterns: cracked clay tiles behind the firebox, dampers seized open, crowns that have given up after decades of dry heat and the occasional pounding rain. Norm Castillo, our owner, grew up off Sierra Avenue in Fontana and trained at Chaffey College’s HVAC and building systems program before narrowing his focus entirely to chimneys, flues, and venting. He’s been at this for close to two decades. When we tell you a Gelco flue needs work, we show you the camera footage. No guesswork.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in West Covina
- Cracked clay flue tiles behind 1950s – 60s Gelco fireplaces. West Covina’s seismic history and decades of thermal cycling take a toll on original clay liners. We document every crack on camera and tell you honestly whether it’s a sweep-and-monitor situation or a reline.
- Seized dampers on holiday-only fireplaces. Many West Covina homeowners light their Gelco fireplace three or four times a year. That’s often enough to let moisture and grit lock the damper open or rust it shut. An open damper invites birds, nests, and Santa Ana wind-driven debris straight down the flue.
- Crown cracks from dry summers and storm-season water. West Covina’s hot, mostly rainless climate bakes chimney crowns until they crack. Then the intense winter storms arrive and drive water into the brick. We repair crowns and set proper caps before spalling turns into a rebuild.
- Blocked shared flues where a Gelco fireplace and furnace vent stack together. This is the configuration we see constantly south of the 10 Freeway. A blockage in the shared chimney doesn’t just kill your fire draw, it can backdraft furnace exhaust into the house.
- Debris buildup after Santa Ana wind events. Older Gelco caps without proper screening fill with leaves, grit, and bird nesting material after a good blow. We clean, inspect, and often recommend a multi-flue cap replacement that actually seals.
Gelco Service in West Covina: What Local Conditions Mean for Your Equipment
Here’s the thing a generic sweep or a brand page won’t tell you about Gelco fireplaces in West Covina. In the older tracts south of the 10 Freeway, it’s common to find original 1950s fireplaces sharing a single chimney with the gas furnace vent. The fireplace “works fine” according to the homeowner, but the furnace exhaust is backdrafting into the living room because the shared flue has a partial blockage nobody’s ever looked for. We were called out to a ranch-style home in the 91790 tracts south of the 10 Freeway where the owner had never had the Gelco fireplace swept since buying the house. When we pulled the damper we found a decades-old bird nest packed against cracked clay tiles plus a blocked shared furnace vent. We cleared the flue, documented the tile cracks on camera, and set a new multi-flue cap over the stack. The smoke draw was restored and the furnace vented properly again on the same visit. That’s why we camera the entire stack, not just the firebox.
Gelco Models & Products We Service in West Covina
We service the full range of Gelco equipment found in West Covina homes: masonry fireplace inserts and heat-circulating firebox units, factory-built prefabricated metal fireplaces with listed chimney sections, gas log sets and vented gas firebox conversions, and chimney caps including multi-flue assemblies. For parts, we fit quality aftermarket caps, dampers, and crown coatings that meet or exceed the original spec rather than chasing discontinued Gelco trim. We’re honest when a firebox is too far gone to repair. If the flue tiles are cracked through, relining or rebuilding beats another sweep. We keep standard components on hand for fast turnaround in West Covina service area calls, so you’re not waiting weeks on a specialty part.
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Serving West Covina, CA — Our Local Coverage Area
We’re based in the West Covina area and know this community well, and we also provide Gelco service in Irwindale. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in West Covina
We can, but we won’t. A shared chimney means furnace exhaust and fireplace smoke move through the same stack, so a blockage in one affects the other. We camera the full flue and inspect both vent paths as part of a Level 2 inspection. Call (833) 805-3229 to book this properly.
You won’t know by looking at the firebox, and that’s the problem. Cracked clay tiles sit behind the visible masonry. Our camera inspection is the only way to see them, and we show you the footage so you can verify it yourself. If they’re cracked through, we’ll tell you relining beats another sweep.
Most original Gelco caps on West Covina homes use screen with gaps that are too large for our wind patterns, unlike a proper Gelco service in Valinda installation. We install a properly sized multi-flue cap with tighter screening that sheds debris while maintaining draft. A clean flue isn’t a luxury; it’s just the job done right.
If the crown has surface cracking but the underlying masonry is sound, crown repair with a quality coating and a proper cap will buy you years. If the brick below is spalling and the cracks run deep into the stack, rebuilding is the honest answer. We’ll show you the camera evidence and let you decide with real information. Call (833) 805-3229 for an inspection and quote.
Yes. The 91792 ZIP has a lot of infill and hillside construction with factory-built metal fireplaces and listed chimney sections. The failure modes are different from masonry, but the cleaning and inspection discipline is the same. We service both.
Service Areas Near West Covina
We also provide Gelco service in Gelco service in Villa Park and Gelco service in Placentia, along with Fontana, Bloomington, Rialto, and the surrounding San Gabriel Valley communities. If you’re just outside West Covina, call and ask, we likely cover your street.
Book Your Gelco Service in West Covina Today
If your Gelco fireplace hasn’t been swept in years or your flue shares a stack with the furnace vent, don’t wait until the next Santa Ana wind event to find out what’s inside—schedule Gelco repair in La Puente. Call (833) 805-3229 for a free estimate. We’ll camera the stack, show you what we find, and quote before any work begins.
Written by Norm Castillo, Owner at Ashwood Chimney Sweep, serving West Covina and the San Gabriel Valley for nearly two decades.