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 Alhambra, CA | Corona Chimney Sweep
We’re Corona Chimney Sweep, and we provide independent Gelco chimney cleaning and repair across Alhambra. Here’s the thing that shapes most of our Gelco work in this city: a huge number of Alhambra fireplaces are old, decorative, or capped from decades-old remodels, so the real question is usually whether the flue is even usable, not just when it was last swept. If you own or manage a home in Alhambra and aren’t sure what’s going on behind that Gelco cap, call us at (855) 382-6159 and we’ll tell you straight.
Why Alhambra Residents Choose Us for Gelco Service
We’ve torn down and rebuilt enough Gelco chimney systems across the San Gabriel Valley — from Gelco service in San Gabriel to nearby communities — to know their cap and damper hardware down to the fastener. We’re an independent shop, not a Gelco dealer or authorized agent, which means we call it like we see it. If a Gelco cap can be reseated and resealed, we do that. If the damper hardware is past saving, we say so and quote exactly what replacement costs. Nobody here pushes a whole-unit swap when a part is repairable.
Nolan Ferris, our owner, grew up in South Corona and picked up combustion systems through Norco College’s vocational program before narrowing his focus entirely to chimneys. He’s spent over a decade inspecting and cleaning flues across the region, and the methodical approach carries through to how we work on Gelco equipment in Alhambra. If you can’t see daylight through the damper, we need to talk before you light that first fire of the season.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Alhambra
- Cap screens torn and sagging from Santa Ana wind and sun. Alhambra’s dry summers bake Gelco mesh screens until they’re brittle, then winter Santa Ana gusts tear right through them. Once the screen fails, starlings and squirrels move into the uncapped brick flue under the street-tree canopy. We replace the screen or the full cap assembly, not the whole chimney.
- Top-mount damper hardware seized from years of disuse. A lot of Alhambra bungalows had fireplaces decommissioned or converted to decorative-only during subdivisions. The Gelco top-mount damper sits rusting for a decade, then won’t budge when a new owner or tenant actually wants a fire. We free, lubricate, and test what can be saved, and replace what’s genuinely seized.
- Cap and chase-cover fasteners pulling through sun-baked masonry. Old brick and stucco in Alhambra’s 1920s-1950s housing stock gets brittle. Gelco cap fasteners loosen or pull through, letting water track down the clay tile liner. We reseat with stainless hardware and seal the crown properly.
- Flashing and crown joints failing at the Gelco cap seal. Alhambra’s winter rain, though light, finds every gap between a Gelco cap and a cracked mortar crown. We strip, clean, and reseal those joints so water stops driving into the flue.
- Nests inside uncapped or poorly capped flues. Mature street trees and dense older blocks mean birds and squirrels look for vertical cavities. We routinely pull nests out of Gelco-capped chimneys that haven’t been inspected in years. Then we assess whether the flue is still functional.
Gelco Service in Alhambra: What Local Conditions Mean for Your Equipment
There’s a pattern we see in Alhambra more than almost anywhere else we work: fireplaces that sit in multi-family conversions and rental bungalows, capped with Gelco hardware, and never burned in. Landlords and property managers ask us for written sweep-and-inspection documentation on a flue nobody has used in years. The visit isn’t really a sweep. It’s “prove this flue is safe or confirm it’s decorative.” That’s the core of our Gelco work in this city. On a bungalow block off Main Street, a landlord asked us to certify a Gelco-capped chimney in a subdivided rental whose tenants had never lit a fire. Our tech pulled a squirrel nest off the cap screen, found the top-mount damper rusted shut, and discovered the flue had been capped from an old remodel. We cleared the nest, freed and tested the damper, reseated the Gelco cap with new stainless fasteners, and handed over a Level 2 report documenting the flue as decorative-only. That’s what Gelco service in Alhambra actually looks like. It’s documentation of reality, not just a brushing.
Gelco Models & Products We Service in Alhambra
We work on Gelco single-flue stainless steel chase cover and cap systems, Gelco multi-flue caps for subdivided multi-family stacks, Gelco top-mount damper assemblies, and Gelco firebox grate and spark-screen sets on decorative fireplaces. We stock OEM Gelco caps, dampers, and spark screens where available, and match them with quality aftermarket stainless hardware when OEM is discontinued or overpriced. On a 1920s-1950s flue, honest repair beats replacement. We reseat and reseal before we ever quote a new cap or damper assembly for an Alhambra homeowner.
See the difference
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AfterGelco Service Pricing in Alhambra
Gelco cap replacement in Alhambra typically runs from $350 to $700 depending on flue size and whether it’s a single or multi-flue cap. Damper repair or replacement lands between $200 and $550. A Level 2 inspection, which is what most Alhambra landlords need for documentation, runs $250 to $400. What drives the cost: access to a second-story roof on a Spanish Colonial Revival, the condition of the crown underneath the cap, and whether we’re freeing hardware or replacing it outright. Every estimate is free, and we tell you which parts actually need replacing before you spend a dollar. Call (855) 382-6159 for a straight answer.
Serving Alhambra, CA — Our Local Coverage Area
We’re based in the Alhambra area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Alhambra
Yes, but not for creosote. You need a Level 1 or Level 2 inspection to document whether the flue is usable, partially blocked, or decorative-only. Alhambra landlords regularly need this paperwork for tenant safety, insurance, or sale disclosure. We’ll tell you what the flue actually is and give you the report. Call (855) 382-6159 to schedule.
The combination of hot, dry summers that bake the mesh until it’s brittle, followed by Santa Ana wind events in the fall and winter, tears Gelco screens apart. Once the screen is open, birds and squirrels get in, especially on blocks with mature street trees. We replace the screen with stainless mesh and check the cap fasteners at the same time.
Often yes. We can free, lubricate, and test hardware that’s seized from sitting unused, which is common in Alhambra bungalows where fireplaces were decommissioned years ago. If the assembly is corroded beyond function, we’ll quote replacement rather than pretend a cleaning fixed it. Call (855) 382-6159 and we’ll take a look.
You don’t until someone runs a camera up the flue and checks the damper, the liner, and what’s actually under that Gelco cap. We’ve found uncapped flues, rusted dampers, and full nests behind caps that looked fine from the street. A Level 2 inspection tells you if the fireplace is safe to burn or decorative-only. Call (855) 382-6159 to book it.
Yes. Sun, Santa Ana wind, and winter rain work the seal between the Gelco cap and the mortar crown. Once that joint opens, water runs down the old clay tile liner and into the masonry. We reseat caps with fresh sealant and stainless fasteners as routine work, not an extra. Call (855) 382-6159 for a free estimate before the next rain.
No. We’re an independent chimney service company. That means we’re not obligated to sell you Gelco-branded anything. We use OEM parts when they make sense and quality aftermarket stainless when they don’t. What matters is the repair holds up, not whose logo is on the box.
Service Areas Near Alhambra
We also provide Gelco sales & service across the broader Alhambra service area. If you’re outside city limits, see our Gelco service in Temecula page or Gelco service in Cudahy for coverage details. We serve the San Gabriel Valley and surrounding communities with the same repair-first approach.
Book Your Gelco Service in Alhambra Today
If you own or manage an Alhambra property with a Gelco cap, damper, or spark screen that needs attention, call us. We’ll schedule a visit, diagnose what’s actually wrong, and tell you straight what needs fixing and what can wait. Call (855) 382-6159 for a free estimate.
Written by Nolan Ferris, Owner at Corona Chimney Sweep, serving Alhambra, Gelco repair in South Pasadena, and the broader San Gabriel Valley.