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 Citrus, CA | Walnut Chimney
We provide independent Gelco chimney cleaning and repair across Citrus, CA. What makes our work here different is that we treat every Gelco fireplace as part of a 60-year-old chimney system, not just an appliance sitting in a firebox. Most Gelco inserts in Citrus vent into original clay-tile flues, and a clean insert means little if the flue behind it is cracked or half-blocked. That’s the part of the job generic advice misses.

Our technicians know Gelco dampers, fan motors, and direct-vent components well enough to spot problems during a routine sweep before they strand you on a cold January night. We cover all of Citrus, ZIP 91702, with the same crew that handles Gelco sales & service across the San Gabriel Valley. Call (855) 341-3461 for a free estimate.
Why Citrus Residents Choose Us for Gelco Service
Most chimney companies in this area know how to sweep a flue. Far fewer know what a seized Gelco damper linkage feels like, or why a direct-vent insert’s fan motor keeps burning out in one Citrus house but not the one next door. We do. Russ Dempsey, our owner, spent his first years in the trade doing fireplace retrofits and cleanouts on the old ranch homes scattered through the San Gabriel Valley, including Gelco in Azusa, before narrowing his focus to chimneys. That background matters when a 1950s firebox doesn’t line up square with a newer Gelco insert and someone has to figure out why the draft is weak.
We’re an independent Gelco service in Irwindale and beyond, not a manufacturer affiliate. That means we recommend what’s actually right for your setup, not what a corporate program tells us to push. We stock OEM Gelco parts for critical components like dampers and fan motors, and we use quality aftermarket parts for universal items like caps when OEM isn’t available or equivalent quality exists. You get an honest repair-versus-replace recommendation every time.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Citrus
- Stuck or warped Gelco dampers. The dry heat in Citrus does a number on damper linkages, especially on fireplaces that only get used a handful of times each winter. Metal expands and contracts unevenly, and the linkage seizes. The damper either sticks open and dumps conditioned air up the flue all summer, or sticks closed and forces smoke back into the living room when you finally light a fire. We free up salvageable dampers and replace the ones that are beyond saving.
- Gelco insert fan motors clogged with Santa Ana dust. When the winds kick up, fine grit finds its way into everything, including the cooling passages of fireplace insert fan motors. The dust collects on bearings, the motor runs hot, and it fails early. We see this pattern constantly in Citrus, particularly on homes near open foothill corridors where the wind blows hardest. Cleaning and replacing those motors is routine work for us.
- Loose or corroded Gelco caps and spark arrestors. Years of thermal cycling and dry wind conditions loosen cap mounts and eat away at fasteners. A loose cap lets rain in during winter storms and invites birds to nest during the long dormant months. We inspect every cap and arrestor during a sweep and replace hardware before it becomes a leak or a blocked flue.
- Hairline cracks in older Gelco insert firebox panels. Sporadic winter use means rapid temperature swings: cold firebox one day, full fire the next, cold again the following week. Over time, that stress cracks firebox panels on older inserts, letting heat escape into the chase. During a cleaning we check panel integrity and flag anything that’s starting to go before it becomes a repair you can’t put off.
- Bird nests and leaf debris packed into uncapped flues. Citrus sits under an oak and pine canopy in the foothill neighborhoods. Every spring, birds pack leaves, twigs, and seeds into any flue missing a cap. By late summer, that blockage is dry and brittle, which is exactly the condition that turns a small chimney fire into a serious one. We remove it and install a proper cap.
Gelco Service in Citrus: What Local Conditions Mean for Your Equipment
Here’s the thing about Citrus that most chimney advice misses: the homes are old, the flues are older, and the weather does two contradictory things at once. The mid-century tract homes off the main corridors in Citrus were built in the 1940s through the 1960s, and most of them still vent through their original clay-tile flues. Six decades of heating and cooling cycles crack the mortar joints between those tiles. At the same time, the oak and pine trees that shade these neighborhoods drop leaves and seeds into any uncapped flue. Birds turn that debris into nests. So a Gelco insert might be burning perfectly fine while the flue behind it is cracked and partially blocked, which is the setup for a slow, smoky draft or a flue fire.
Santa Ana winds compound the problem. The low humidity pulls moisture out of creosote and leaves it dry and brittle, which is exactly the condition that ignites easily. In Citrus, chimney work is less about heavy glazed creosote and more about removing dry, highly flammable residue from sporadic fireplace use, plus clearing the debris that accumulates during long dormant stretches. A late-summer sweep-and-cap visit handles both before the first cold snap.
Gelco Models & Products We Service in Citrus
We service the Gelco product lines most common in Citrus homes: direct-vent gas fireplace inserts, wood-burning inserts, fireplace dampers, and spark arrestor caps. Direct-vent models are the ones we see most often, usually retrofitted into original masonry openings during a remodel or energy upgrade. Wood-burning Gelco inserts show up in the older ranch houses where owners wanted more heat output from a traditional fireplace. Both types need the same core work here: flue cleaning, damper inspection, cap maintenance, and fan motor care.
When it comes to parts, critical safety components get OEM treatment. Gelco damper assemblies and fan motors need to fit precisely, and aftermarket substitutes introduce problems we’d rather not deal with. Universal components like caps and spark arrestors get quality aftermarket options when OEM isn’t readily available. We keep common Citrus-fit parts on hand so turnaround is measured in days, not weeks backordered from a distributor.
See the difference
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AfterGelco Service Pricing in Citrus
Before we quote anything, here’s what you should know. Our pricing is built around what your Citrus home actually needs, not a flat package rate that ignores condition. The two biggest variables are flue length, because the older tract homes here run taller chimneys than newer builds, and the condition of the damper and cap, which determines whether we’re cleaning or cleaning plus repairing.

A basic Gelco insert sweep and flue cleaning typically runs $180 to $340. If we find we need to replace a damper, add a Level 2 inspection with camera footage, or install a new cap, we tell you before any work happens. Free estimates include a visual check of your firebox and flue access, and we’ll show you what we’re seeing so the recommendation makes sense. Call (855) 341-3461 for an exact quote.
Serving Citrus, CA — Our Local Coverage Area
We’re based in the Citrus area and know this community well, including nearby Covina Gelco service calls. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Citrus
Yes. We service Gelco direct-vent gas inserts, wood-burning inserts, dampers, and caps throughout Citrus, ZIP 91702, as an independent provider. We are not a manufacturer affiliate or authorized dealer, but we work on Gelco equipment regularly and stock OEM parts for the critical components like dampers and fan motors. If you have a Gelco insert in a Citrus home, we’ll inspect the entire system, not just the insert itself. Call (855) 341-3461 to schedule.
In Citrus, fan failures usually trace back to dust and dry debris from Santa Ana winds clogging the motor bearings, which causes overheating and premature wear. It’s one of the most common problems we see on Gelco inserts in foothill neighborhoods. We clean the motor housing, replace the fan with an OEM part when it’s shot, and in some cases add a finer mesh screen to reduce future debris intake. If your fan has failed more than once, it’s worth a closer look at the air path.
Yes, that’s a repair we do regularly in Citrus, where 60-year-old clay flues crack at the mortar joints. The repair depends on how bad it is: hairline cracks can often be resurfaced with HeatShield ceramic material applied from inside the flue, while more severe damage calls for a DuraFlex stainless liner. We always camera-inspect first so you can see exactly what’s happening and why the recommended repair is right for your house.
Install a properly fitted spark arrestor cap and keep it maintained. In Citrus, the oak and pine canopy means birds are actively looking for nesting sites every spring, and an uncapped or loose-capped flue is an open invitation. We’ve pulled nests out of Gelco-equipped flues, including Gelco in Baldwin Park homes, that were packed tight enough to block the draft entirely. A cap solves it, and it also keeps leaves and rain out during the wet months.
Usually, yes. A stuck-open damper in Citrus is typically the result of a seized or warped linkage from dry heat and long periods of disuse. We free up the linkage, lubricate it with high-temp compound, and replace the damper if the mechanism has failed beyond repair. Leaving it stuck open pours conditioned air up the chimney year-round, so it’s worth the fix sooner rather than later. Call (855) 341-3461 for an estimate.
Service Areas Near Citrus
Beyond Citrus, we service Gelco equipment in surrounding San Gabriel Valley and Orange County communities including Garden Grove, Midway City, Stanton, Westminster, Anaheim, and Fountain Valley. If you’re in a neighboring city with Gelco equipment, see our Citrus service area page for coverage details, or check Gelco service in Mayflower Village and Gelco service in Rolling Hills Estates for nearby coverage.
Book Your Gelco Service in Citrus Today
If you have a Gelco fireplace in Citrus and haven’t had the flue checked this year, now’s the right time. The dry season leaves creosote brittle, the birds have been busy, and the first cold snap arrives before most people schedule anything. Call (855) 341-3461 and we’ll walk through what you have and set up a visit.
Written by Russ Dempsey, Owner at Walnut Chimney, serving Citrus since he started working flues in the San Gabriel Valley nearly two decades ago.