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 Covina, CA | Firebrick Chimney Sweep
Gelco chimney cleaning in Covina isn’t just a fireplace job. Most of the Gelco systems we service here are original 1950s – ’70s masonry units tied to wall furnaces and floor furnaces in tract homes, and they vent differently than a modern fireplace flue. We’re an independent Gelco service provider covering all three Covina ZIP codes – 91722, 91723, and 91724 – with a focus on scoping the entire vent system, not just brushing the flue. If your Gelco fireplace smokes, your cap is rusted through, or you’ve got a floor-furnace stack that’s never been looked at, call (866) 520-4943 and we’ll tell you exactly what’s going on.
Why Covina Residents Choose Us for Gelco Service
We’ve spent years pulling, sweeping, and scoping Gelco masonry fireplaces and original vent stacks across Covina’s mid-century tract homes. That repetition means we know the brand’s flue geometries, damper fits, and cap mounting patterns from the inside out. Nelson Quijada, our owner, learned the mechanical and construction fundamentals at Los Angeles Trade-Technical College before narrowing his focus entirely to flue systems, firebox masonry, and draft diagnostics. He grew up off Cahuenga Boulevard in Hollywood and has spent two decades working on chimneys in hillside homes and mid-century bungalows – the same housing era Covina was built around. When we open a Gelco firebox in Covina, we know what we’re looking at before the flashlight goes on.
We’re independent. No manufacturer authorization, no warranty endorsement. That matters because our recommendations are based on what the flue actually looks like, not a sales program. We also offer Gelco sales & service depth that a general handyman doesn’t have, and we pair it with repair capability – meaning if we find a cracked liner or a failed damper during a cleaning, we can resolve it without sending you to another contractor.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Covina
- Cracked and spalling original clay-tile flue liners. Covina’s mild winters mean fireplaces get light, sporadic use. Without heavy creosote to flag a problem, liner cracks go unnoticed for years. The tile spalls slowly, and by the time a homeowner notices, the flue has been compromised through several heating seasons. We scope every Gelco flue we clean – a visual sweep alone won’t catch a hairline crack behind a smoke shelf.
- Bird nests, leaf litter, and ash blown back down Gelco flues during Santa Ana events. Covina’s dry wind events push debris into chimney openings that sit idle for months. Even a fireplace that’s barely used can be completely blocked by a nest built in a rusted-out cap’s gap. We see this constantly in the 91722 and 91723 tracts.
- Rusted dampers and corroded top plates. Covina’s hot, dry summers bake chimney components for months at a time. Gelco dampers from the ’60s and ’70s seize up or rust through, and the top plate follows. A cleaning call turns into a cap-and-damper replacement more often than people expect.
- Gelco vent stacks on original floor furnaces and wall furnaces. This is the Covina-specific problem. Many homes still have their original short, separate vent stacks that were never serviced after installation. They vent the same house and fail the same way a fireplace flue does – but nobody thinks to scope them. We do, every time.
- Smoky fireplaces despite clean flues. When a Gelco fireplace smokes on a light burn, the culprit is usually a partially closed rusted damper, a missing cap that’s changed the draft, or negative pressure from the home’s other venting. We diagnose the system, not just the flue.
Gelco Service in Covina: What Local Conditions Mean for Your Equipment
Here’s the thing about Covina that changes how we approach Gelco work: most chimney cleaning in this city isn’t for fireplaces at all. It’s for the older masonry chimneys that served wall furnaces and floor furnaces in mid-century tract homes. These vent differently than modern fireplace flues. A wall furnace stack is short, often runs through the roof with minimal rise, and depends on a different draft profile than a tall fireplace chimney. A floor furnace stack is even shorter. Both accumulate debris, rust, and liner spalling, but because they don’t get a visual check during routine maintenance, they go decades untouched. In the older tract neighborhoods around the 91722 and 91723 ZIP codes, a Gelco chimney cleaning call often turns into a vent-stack inspection – and that’s by design on our end, not by accident. We scope that stack alongside the fireplace flue because it vents the same house and fails the same way.
A dirty flue isn’t a maintenance issue – it’s a fire waiting on a cold night. That’s as true for a floor-furnace stack as it is for a fireplace chimney.
Gelco Models & Products We Service in Covina
We work on original Gelco masonry fireplace units from the 1950s through the ’70s, the kind installed in Covina’s ranch and Spanish-style tract homes. That covers top-mounted single-flue caps, multi-flue caps for two-flue masonry chimneys, and Gelco gas-log and gas fireplace inserts. For parts, we stock OEM-matched caps, dampers, and crown materials for Gelco units. Where aftermarket makes sense, we use quality aftermarket liners and caps only where the fit is provably correct – never a universal part forced onto a 60-year-old firebox. On a 1950s Gelco firebox that’s structurally sound, repointing and a proper cap usually beat a rebuild. We’ll tell you when a rebuild is the honest answer.
See the difference
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AfterGelco Service Pricing in Covina
Gelco chimney cleaning in Covina typically falls between $189 and $349, same as Gelco service in Irwindale and other nearby San Gabriel Valley markets. That includes a full flue sweep, visual inspection, and debris removal. A Level 2 camera inspection – recommended if you’ve never had this Gelco system scoped, or if you’re in a 91722/91723 tract home with original floor-furnace venting – runs $249 to $499. Cap replacement on a Gelco unit runs $120 to $350 depending on the cap size and whether it’s a single or multi-flue configuration. A rusted damper replacement adds $180 to $400. If we find spalled clay tile liner, HeatShield resurfacing typically costs $2,500 to $4,500, and a full liner replacement runs $4,000 to $8,000. Every estimate starts with a free phone conversation and ends with a written quote before any work begins. Call (866) 520-4943 for an exact number – estimates are free, and we’ll tell you plainly if the work can wait.
Serving Covina, CA — Our Local Coverage Area
We’re based in the Covina area and know this community well, and we also provide Gelco in Azusa. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Covina
Because the flue is blocked or the draft is broken, not because the fireplace is dirty. In Covina, the usual culprits are bird nests and leaf litter blown in during Santa Ana events, a rusted damper that won’t open fully, or a missing cap that’s changed the chimney’s draw. We scope the flue and check the damper and cap on every visit. Call (866) 520-4943 and we’ll pinpoint it rather than guess at it.
Yes, every time. Your floor-furnace vent stack vents the same house and fails the same way your fireplace flue does – rust, debris, liner spalling. In Covina’s 91722 and 91723 tracts, most of these stacks are original and have never been serviced, unlike the Citrus Gelco service area where more replacements have occurred. We scope the stack alongside the fireplace flue as standard practice, not as an add-on.
In most cases, just the cap. Original Gelco caps on Covina homes rust through at the top plate, but the firebox and flue below are usually still sound. We stock OEM-matched caps for Gelco units and can replace a rusted single-flue or multi-flue cap without touching the masonry. If we find liner damage during the cap replacement, we’ll show you the camera footage before recommending anything further.
You usually don’t, until we scope it. Hairline cracks in clay tile don’t announce themselves – a fireplace can burn fine for years with a liner that’s slowly spalling. The reliable way to find out is a Level 2 camera inspection. We run a scope through every Gelco flue we clean in Covina, because the light, sporadic use these fireplaces get means cracks go unnoticed without one.
Yes. Gelco gas-log and gas fireplace inserts are common in Covina homes where owners converted from wood decades ago. We clean and service them the same way – scope the flue, check the damper, inspect the cap – and we note that gas units still need annual cleaning for soot and debris buildup. Call (866) 520-4943 for a gas insert service quote.
Service Areas Near Covina
Our Gelco service area extends beyond Covina into the surrounding San Gabriel Valley and nearby communities. We regularly work in Covina service area homes and make the drive out to neighboring cities where the same mid-century housing stock shows up. If you’re nearby and need a Gelco fireplace or vent stack scoped, we’re easy to reach. We also provide Gelco service in Los Alamitos and Gelco service in Cypress, both within a short drive for most of our Covina customers.
Book Your Gelco Service in Covina Today
A Gelco chimney that’s been ignored for decades doesn’t fix itself. If you’re in Covina and your Gelco fireplace smokes, your cap is rusted, or your floor-furnace stack has never been scoped, we’ll come out and tell you exactly what’s going on — the same way we do for our West Covina Gelco service customers. Call (866) 520-4943 for a free estimate – we’ll get you on the schedule and walk you through everything we find.
Written by Nelson Quijada, Owner at Firebrick Chimney Sweep, serving Covina and the San Gabriel Valley.