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 Sherman Oaks, CA | Hickory Chimney Sweep
We provide independent Gelco chimney cleaning and service across Sherman Oaks, including the 91403, 91413, 91423, and 91495 ZIP codes, and Gelco in Universal City as well. What makes our Gelco work here different is simple: we’ve spent years learning how Gelco caps, dampers, and inserts behave in mid-century Valley masonry, especially after earthquakes. Call (855) 554-2841 for a free estimate, and we’ll tell you exactly what’s going on with your Gelco equipment before any work is booked.
Why Sherman Oaks Residents Choose Us for Gelco Service
Ruben Acosta, our owner, has spent more than two decades sweeping and inspecting chimneys, and he’s the first to tell you that Gelco products are built well but they don’t love Valley weather. Heat cycling, Santa Ana winds, and the occasional temblor all take a toll on caps and dampers that look fine from the ground. We’ve serviced enough Gelco installations across Sherman Oaks and Gelco in West Hollywood to know which components fail first and which ones just need a good cleaning and adjustment. That’s the difference between guessing and knowing. If your Gelco cap is askew or your damper won’t seal, we’ll diagnose it quickly and fix it with the right parts. We stock OEM Gelco caps and dampers when exact fit matters, and we use quality aftermarket gaskets and hardware where OEM isn’t available.
We’re an independent service provider, not affiliated with or authorized by Gelco. That means we work for you, not a warranty line. Our Gelco sales & service experience runs deep, but our loyalty is to the homeowner standing in front of us.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Sherman Oaks
- Rusted screws and loose panels on multi-flue caps. Gelco multi-flue caps are solid, but Sherman Oaks gets real heat in the summer months, and Santa Ana winds push against those panels season after season. Fasteners corrode, panels loosen, and gaps open up that let birds and debris into the flue. We remove the cap, replace the hardware, and reset the panels so they seal tight.
- Seized top-sealing dampers that won’t close. In ranch homes where the fireplace is mostly decorative, a Gelco top-sealing damper can sit unused for months. The mechanism stiffens, the gasket loses its seal, and you get drafts cold air dropping in summer, conditioned air escaping in winter. We disassemble, lubricate, and replace gaskets when they’ve flattened out.
- UV-faded and chalked custom cap finishes. Sherman Oaks sun is relentless. Painted Gelco custom caps fade and chalk fast, especially on hillside homes with full western exposure. The finish isn’t just cosmetic, it’s your first line of defense against rust. We can refinish a cap when the metal is still sound, or replace it when rust has started eating through.
- Compromised gaskets and warped baffles on fireplace inserts. Gelco inserts in mid-century masonry fireplaces get used hard but not often. That means intense heat cycles followed by long idle stretches, which warps baffles and degrades gaskets faster than steady use would. During a cleaning we check both and tell you honestly what needs replacing.
- Earthquake-shifted caps that mask hidden flue damage. After any noticeable Valley quake, we get calls from Sherman Oaks homeowners whose Gelco caps have shifted or tilted. The visible problem is the cap. The real problem is often underneath where the flue tile has cracked and separated. We don’t just straighten the cap; we inspect the full flue.
Gelco Service in Sherman Oaks: What Local Conditions Mean for Your Equipment
Sherman Oaks sits squarely in the San Fernando Valley, and the housing stock tells the story. South of the Ventura Freeway, especially in 91403 and 91423, you’ll find rows of 1950s and 1960s ranch homes with original masonry fireplaces. These chimneys were built well, but they’ve spent six decades in Valley heat, seismic settling, and long stretches of disuse. The fireplace is decor more than heating. That changes what we look for during a Gelco cleaning. We’re not chipping out heavy creosote; we’re checking for cracked crowns, deteriorating mortar joints, spalling brick, and flue tiles that shifted during the last quake. A Gelco cap will often hide that damage. It sits on top, looks intact, and you don’t know the flue below it is compromised until someone runs a camera down. Tell me what the flue looks like and I’ll tell you what your winter looks like. That’s not a slogan; it’s how Ruben approaches every inspection. In Sherman Oaks, the chimney that gets used three times a year is the one that needs the inspection most.
Gelco Models & Products We Service in Sherman Oaks
We work on the full Gelco line that shows up in Valley homes: the Multi-Flue Cap, Custom Cap, Top-Sealing Damper, and Fireplace Inserts. For caps and dampers, we stock OEM Gelco parts locally so exact-fit replacements don’t mean waiting a week for freight. For gaskets and mounting hardware, we use quality aftermarket parts when they perform as well or better than original. The rule is straightforward: we repair when the core component is sound and replace when rust or cracking has compromised structural integrity. You’ll see the problem before you pay for the fix. We show photos from the camera inspection and explain what it means in plain terms.
See the difference
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AfterGelco Service Pricing in Sherman Oaks
Gelco chimney cleaning in Sherman Oaks typically runs $189 – $389, depending on the chimney’s condition and whether it’s a standard flue or an insert. Cap replacement adds $250 – $650 depending on model and flue size. Top-sealing damper repair lands between $350 and $850. Chimney waterproofing runs $450 – $950 for the crown, brick, and mortar. Camera inspection is $99 – $350 and it’s included when we find something that needs a closer look. The free estimate covers the visual assessment and a straight answer about what needs doing now and what can wait. Call (855) 554-2841 for an exact quote.
Serving Sherman Oaks, CA — Our Local Coverage Area
We’re based in the Sherman Oaks area and also offer Gelco service in Studio City, so we 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 Sherman Oaks
My Gelco cap was damaged in an earthquake – can it be repaired or do I need a new one?
If the cap’s mounting screws pulled from the crown but the metal is intact, we can often repair it by resetting the cap and repointing the crown. If the quake cracked the cap’s mounting flange or bent the panels, replacement is the safe call. Either way we inspect the flue beneath because a shifted cap often means a shifted flue tile. Call (855) 554-2841 and we’ll assess it.
Why does my Gelco top-sealing damper stick open in my Sherman Oaks ranch home?
Long idle stretches in rarely used fireplaces let the damper mechanism stiffen and the gasket lose its seal. When you finally use the fireplace, rust from moisture and soot builds up and the damper won’t cycle. We disassemble, clean, lubricate, and replace the gasket if it’s flattened or cracked.
How often should I inspect my Gelco chimney cap for rust or loose screws?
Every fall before burn season, and after any earthquake you actually felt. Sherman Oaks heat dries out fasteners faster than coastal air, and Santa Ana winds stress panels. We recommend an annual inspection with your sweep, and we check the cap from above every time. A loose cap is a cheap fix; a fallen cap is a repair.
Can you waterproof my chimney without voiding my Gelco cap warranty?
Waterproofing the crown and masonry doesn’t touch the cap itself, so it won’t affect any Gelco warranty. What it does is prevent the freeze-spalling that cracks crowns and loosens cap mounting points. Since Gelco doesn’t authorize our work, we recommend checking your cap’s condition at the same time. We’ll tell you if waterproofing is worth doing on your chimney or if the crown needs repointing first. Call (855) 554-2841 for an honest read.
Do you service Gelco fireplace inserts in older Sherman Oaks homes?
Yes. Gelco inserts in mid-century masonry fireplaces are a regular service call for us across 91403, 91413, 91423, and 91495. We clean the firebox, check the baffle for warping, and test gaskets for a proper seal. Older inserts in rarely used fireplaces often develop gasket issues before anything else fails.
Service Areas Near Sherman Oaks
Our Gelco service extends from Sherman Oaks into the surrounding Los Angeles area, including Sherman Oaks service area coverage and nearby communities. We also serve Gelco service in Hacienda Heights and Gelco service in Lennox for customers in those areas. If you’re within the San Fernando Valley or adjacent neighborhoods, give us a call and we’ll let you know if we can get to your chimney.
Book Your Gelco Service in Sherman Oaks Today
If your Gelco cap, damper, or insert needs attention in Sherman Oaks or you need Gelco in North Hollywood, we can get you on the schedule quickly. Call (855) 554-2841 for a free estimate, and Ruben or a member of the team will walk you through what we’ll check and what it’ll cost before any work begins.
Written by Ruben Acosta, Owner at Hickory Chimney Sweep, serving Sherman Oaks and the San Fernando Valley.