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 Monrovia, CA | Glendale Chimney Sweep
We provide independent Gelco chimney cleaning and component service throughout Monrovia, including both 91016 and 91017. The thing that separates our Gelco work here from a generic sweep is simple: Monrovia’s foothill exposure beats the hell out of cap screens, crown mortar, and flex liners in ways flatter LA towns never see. If you’ve got a Gelco-equipped fireplace in Monrovia, call (833) 467-6493 and we’ll tell you exactly what’s happening up there.
We’re not a manufacturer affiliate or an authorized Gelco dealer. We’re an independent service company that’s spent years pulling, inspecting, and repairing Gelco components in canyon-edge conditions. When we quote a repair, we name the part. When we clean a flue, we document what came out. You can read more about our background on our Gelco sales & service page.
Why Monrovia Residents Choose Us for Gelco Service
Most chimney companies in the San Gabriel Valley know how to run a brush up a flue, but not every company offers Duarte Gelco service. Fewer know the difference between a Gelco direct-vent termination cap that’s still serviceable and one that’s been cracked by three seasons of Santa Ana gusts on a north-of-Foothill rooftop. We do, because we’ve been in those foothill neighborhoods often enough to recognize the wear patterns before we even get the ladder off the truck.
Noel Tarkanian, our owner, grew up in the Montrose neighborhood of Glendale, where a 1950s craftsman with a temperamental fireplace taught him early that chimneys don’t fix themselves. He came up through the HVAC and sheet metal program at Glendale Community College before moving exclusively into chimney work, and the diagnostic side of the job is still what he cares about most. That matters when you’re dealing with Gelco components that are failing in ways specific to Monrovia’s wind and debris load, and it’s why homeowners seeking Mayflower Village Gelco service get the same careful diagnosis.
We fit genuine Gelco parts where they’re still available and we match quality aftermarket stainless and cap hardware when OEM is discontinued or weeks out. We won’t chase a part number into oblivion if repointing or relining makes more sense for your chimney. You’ll hear that from us plainly.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Monrovia
- Kinked or separated Gelco flex liners in canyon-edge homes. Flexible stainless relining kits are great until they’re routed around an offset in an older Monrovia chimney and wind-driven debris compounds the stress. We see liners separate at the joint, which kills draft and lets creosote pool exactly where you don’t want it. The fix is a proper re-route or liner replacement, not a patch.
- Battered Gelco direct-vent termination caps. Homes north of Foothill Blvd take the brunt of Santa Ana wind. Caps crack at the housing seam, which lets rain and leaf litter into the vent run. We replace the cap and check the entire vent path while we’re up there.
- Acorn-loaded cap screens and corroded fasteners. Live-oak and eucalyptus acorns plug Gelco cap screens so thoroughly that draft drops to nearly nothing. Foothill damp also corrodes the fasteners faster than in flatter parts of LA. We clear the screen, check the cap for deformation, and swap fasteners for stainless when the original hardware is compromised.
- Loose Gelco insert vent connectors. Monrovia chimneys get light-but-real seasonal use, and that heat cycling loosens vent connectors at the flue collar over years. Gaps open, and soot leaks into the firebox surround. We catch this during cleaning before it becomes a visible mess inside the house.
- Creosote pooling from draft loss. When any of the above restricts airflow, creosote builds faster. In older 1900s-1930s chimneys with undersized original flues, the problem compounds quickly. We remove the creosote and then fix the restriction that caused it.
Gelco Service in Monrovia: What Local Conditions Mean for Your Equipment
Monrovia’s foothill blocks nearest the canyon, particularly the 91016 hillside tracts north of Foothill Blvd, sit in a debris path that flatter neighboring towns simply don’t share. Dense live-oak and eucalyptus leaf and acorn loads clog Gelco cap screens and drop straight into flues, and the seasonal rain the mountains wring out accelerates crown cracking and fastener corrosion. Wind-driven debris doesn’t just dirty a chimney here. It deforms cap housings, plugs screens, and forces owners to think about chimney maintenance before burning season in a way someone down in Arcadia never has to. That’s why early-fall cap and cleaning work is the local rhythm in Monrovia, and it’s why our Monrovia service area coverage includes a lot of preventative visits in September and October.
Gelco Models & Products We Service in Monrovia
We work on the full range of Gelco venting and chimney components common in Monrovia homes: direct-vent gas fireplace venting kits, flexible stainless relining kits, chimney caps and multi-flue caps, and fireplace insert vent connectors. When a Gelco part fails, our first move is a genuine Gelco replacement if it’s still manufactured and available. When OEM is discontinued or backordered, we spec aftermarket stainless and cap hardware that matches or exceeds the original. We keep a working stock of common cap sizes and stainless hardware on the truck, so most Monrovia cap replacements don’t require a second trip.
See the difference
Before
After
Before
After
Before
AfterGelco Service Pricing in Monrovia
Chimney cleaning on a Gelco-equipped fireplace in Monrovia typically runs between $189 and $329 depending on flue condition, accessibility, and whether we’re pulling acorn debris and squirrel nesting from the smoke shelf. Cap replacement adds $145 to $385 for the part and install, depending on cap size and whether you need a heavier multi-flue cap rated for Santa Ana exposure. Crown repair and recoating runs $295 to $795 when we’re already on the roof. Every estimate includes a camera inspection, so you see what we see before any work is approved. Call (833) 467-6493 and we’ll give you an exact number for your chimney.
Serving Monrovia, CA — Our Local Coverage Area
We’re based in the Monrovia area and know this community well, and we also offer Arcadia Gelco service. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Monrovia
Yes. We service Gelco caps, direct-vent venting, flex liners, and insert vent connectors throughout Monrovia, including both 91016 and 91017. We’re an independent service provider, not a manufacturer affiliate, but we know these components well enough to diagnose and repair them confidently.
Foothill blocks nearest the canyon collect dense live-oak and eucalyptus leaf and acorn loads that drop into flues and plug cap screens faster than anywhere else in the San Gabriel Valley, including areas where we provide Gelco in Bradbury. The Santa Ana winds also drive debris sideways into cap housings. If you’re north of Foothill Blvd, plan on cleaning before burning season every year and ask us about heavier cap screening. Call (833) 467-6493 for a free estimate.
Sometimes, when the crack is at a seam and the housing hasn’t deformed. More often in Monrovia, the wind bending has stretched the metal enough that a repair won’t hold, and replacement is the honest call. We’ll show you the damage in photos and let you decide with the facts in front of you.
In foothill homes, the usual culprits are a kink or joint separation in the flex liner, a cap screen plugged with debris, or both. We’ll inspect the full run with a camera, find the exact restriction, and quote you a fix. No guessing. Call (833) 467-6493 to schedule an inspection.
Yes. Creosote removal is core to what we do, and on Gelco-equipped fireplaces we pay extra attention to the vent connector and cap, where restrictions tend to start in Monrovia’s conditions. We document the before and after so you can see what we pulled out. Estimates are free at (833) 467-6493.
Service Areas Near Monrovia
We also serve Glendale, Silver Lake, Burbank, Echo Park, Hollywood, and La Cañada Flintridge. If you’re in one of those neighborhoods with a Gelco chimney, see our Gelco service in Lynwood and Gelco service in Lennox pages for details.
Book Your Gelco Service in Monrovia Today
If your Gelco cap is rattling in the wind or your fireplace hasn’t drawn right since last winter, call (833) 467-6493. We’ll schedule a cleaning and inspection, and we’ll tell you straight what needs fixing and what can wait. A clean chimney isn’t a luxury, it’s just basic fire safety.
Written by Noel Tarkanian, Owner at Glendale Chimney Sweep, serving Monrovia and the San Gabriel Valley.