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 Lennox, CA | Santa Ana Chimney Sweep
Gelco chimney cleaning in Lennox means two things at once: the sealed gas fireplace or insert needs its gaskets, glass, and burner checked, and the 1950s clay-tile flue behind it needs a hard look too. We’re an independent Gelco service provider, not manufacturer-affiliated, and the reason our work here is different comes down to one local reality: those original ranch-house liners hide cracks that don’t show until you run a camera up the flue. If you own a Gelco unit in the 90304 ZIP, call (855) 341-9658 and we’ll schedule a sweep and a Level 2 video inspection together.

We handle Gelco sales & service questions every week from homeowners across Lennox, and most calls start with a smell, a lazy flame, or glass that won’t stay clean. Our crew works on sealed-combustion Gelco fireplaces and inserts monthly in this part of Los Angeles County. We know what fails first here, and it usually isn’t what the homeowner expects.
Why Lennox Residents Choose Us for Gelco Service
Most chimney sweeps can brush a flue. Not many can pull the glass off a Gelco sealed gas fireplace, diagnose a hardened rope gasket, and then run a video scan that catches what’s happening in the clay tiles above the insert collar. We do all three on the same visit, and we’ve been doing it across Lennox long enough to know the local housing stock by its symptoms: 1940s and 1950s stucco ranch homes, tight lots, original masonry fireplaces, and damp marine air that never really lets a chimney dry out.
Allen Becerra, our owner, spent years working on older masonry fireplaces around Orange County before expanding to offer Gelco in Hawthorne and making our crew the local go-to for Lennox Gelco service. He’s the one who taught us to treat every sealed-combustion unit as a system, not a firebox in isolation. What happens inside the Gelco firebox and what’s happening inside the flue are connected. Skip either one and you’ll be back in six months with the same problem.
We use Gelco OEM gaskets, glass, and burner components when they’re available and spec-matched. When OEM supply is slow, we’ll tell you exactly which aftermarket venting or cap parts we’re substituting and why. No guessing, no hardware-store improvisation on a sealed combustion system.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Lennox
- Deteriorated glass gaskets and rope seals. Gelco sealed fireboxes depend on those seals to keep combustion byproducts and moisture out of the cavity. Lennox’s damp marine-layer mornings accelerate the breakdown. A loose seal means sulfur smells inside the house and condensation on the glass.
- Rusted or frozen dampers and corroded firebox components. In Lennox’s older stucco ranches, humid coastal air sits in rarely used flues for months. We regularly find damper pivots seized with rust on Gelco units that have barely been burned. The fireplace isn’t worn out; it’s corroded from atmospheric moisture.
- Soot and dust film on Gelco glass fronts plus blocked burner ports. Lazy yellow flame, delayed ignition, and glass that won’t stay clean for more than a week. That’s usually burner ports clogged with dust and a combustion issue, not a simple sweep. We clean the ports and check the air shutter.
- Venting mismatch and loose flue collars on Gelco inserts retrofitted into clay-tile chimneys. This is the one we see most in Lennox. A modern Gelco insert gets dropped into a 1950s clay tile liner that was never sized for it. Add hairline cracks and exhaust can leak behind the liner into the wall cavity.
- Clay tile liner cracks that never show from the firebox. We only catch these with a video scan. And considering how close together Lennox homes are, a flue fire spreading to a neighbor’s roof is a real risk that shouldn’t be ignored.
Gelco Service in Lennox: What Local Conditions Mean for Your Equipment
Here’s the fact that matters more than any model number: Lennox’s original clay tile liners from the 1950s ranch boom often have hairline cracks that are invisible from the firebox. They show up on a video scan, not to the naked eye. If your Gelco insert was retrofitted into one of these flues, it may be venting exhaust into a cracked tile behind the liner and you’d never know it. That’s why a Level 2 Inspection with a camera is the only way we’ll sign off on a Gelco unit in this neighborhood.
The dense blocks around Lennox Middle School are full of these setups: sealed gas fireplace in the living room, original clay liner above it, and decades of marine air working on both. A Gelco unit can run clean and still be unsafe if the flue behind it is compromised. We don’t guess. We look.
Gelco Models & Products We Service in Lennox
We work on Gelco direct-vent gas fireplace inserts, Gelco sealed-combustion gas fireplaces, Gelco gas log sets and burner assemblies, and Gelco vented gas fireplace units with glass fronts. That covers most of what was installed in Lennox homes during the last two decades.
When it comes to parts, our position is simple: Gelco OEM gaskets, glass, and burner components where they’re available and match the unit spec. When OEM supply runs slow, we use quality aftermarket venting and caps that meet the same spec, and we say so before we install anything. On older Gelco units with cracked firebox panels or obsolete burners, we’ll tell you honestly whether a repair makes sense or a replacement insert is the better spend. We’re not here to sell you a rebuild you don’t need.
See the difference
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After
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AfterGelco Service Pricing in Lennox
Chimney sweeping in Lennox typically runs $180 to $340 depending on flue condition, access, and whether it’s a standard open fireplace or a Gelco sealed unit that requires glass and gasket service. A Level 2 video inspection adds $150 to $300 as a standalone service but is usually bundled with the sweep at a lower combined rate.
Gas fireplace service for a Gelco unit, including burner cleaning, glass removal, and gasket check, generally falls between $150 and $250. We also provide Inglewood Gelco service, and chimney waterproofing, which matters here given the marine layer’s constant moisture, starts around $350. The condition of your clay tile liner and the age of the Gelco unit drive the final number. Call (855) 341-9658 for an exact quote with a free estimate.
Serving Lennox, CA — Our Local Coverage Area
We’re based in the Lennox area and know this community well, and we also handle Gelco service in Del Aire. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Lennox
Usually yes. In Lennox, that musty smell almost always traces back to moisture: a deteriorated glass gasket letting damp air into the firebox, a rusted damper, or condensation inside the clay tile flue. We pull the glass, check the seals, and run a camera up the flue. Fixing it starts with knowing exactly where the moisture is entering.
Absolutely, and that’s one of our most common jobs here. The challenge is that those original clay liners are now 60 to 70 years old and often hairline-cracked. We service the Gelco unit itself and inspect the entire flue path with a video scan. If the liner is compromised, we’ll show you the footage and talk through options before any repair work proceeds. Call (855) 341-9658 to schedule it.
Yes. Even though gas burns cleaner than wood, it still produces soot, dust accumulations, and moisture that corrode internal components over time. Sealed glass-front units are especially prone to gasket deterioration in Lennox’s humid marine air. An annual service keeps the burner ports clear and catches seal failures before they leak into the house.
It’s the marine layer. Lennox sits close to the coast, cools down overnight, and wakes up to damp mornings that keep humidity elevated even when it’s not raining. Flues in older stucco ranch homes hold that moisture. We see Gelco units that have barely been burned with more rust than fireplaces in other cities that get used weekly. It’s not a defect in your Gelco; it’s the local climate working on the metal. Waterproofing and regular service slow it down.
That depends on the age of the unit and whether the panels are still available. On newer Gelco fireplaces, a panel replacement is straightforward. On older units with obsolete burners or repeated panel failures, we’ll give you the repair cost, the replacement cost, and our honest recommendation. We don’t push rebuilds when a new insert is the smarter spend.
Service Areas Near Lennox
We serve Lennox and the surrounding South Bay communities including Gelco service in Sunnyslope and Gelco service in Lakeland Village. More broadly, our Lennox service area extends through the 90304 ZIP and nearby neighborhoods, so if you’re on the border, give us a call and we’ll confirm coverage.
Book Your Gelco Service in Lennox Today
If your Gelco fireplace hasn’t been serviced in a while, or you’ve noticed a smell, a lazy flame, or moisture on the glass, don’t wait — the same applies if you need Gelco service in El Segundo. Call (855) 341-9658 and we’ll set up a sweep and inspection. Estimates are free, and we’ll show you exactly what we find.
Written by Allen Becerra, Owner at Santa Ana Chimney Sweep, serving Lennox and the surrounding area. Allen grew up around the historic masonry homes of Santa Ana and has spent nearly two decades inspecting and cleaning chimneys across Southern California. A clean flue isn’t a luxury – it’s what separates a working fireplace from a fire hazard.