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 Tarzana, CA | Hadley Chimney Woodland Hills
Our Tarzana Chimney Sweep provides independent Gelco chimney cleaning and repair across Tarzana, including the ranch homes south of Ventura Boulevard and up through the hills. The one thing that makes our Gelco work different here is that we inspect every liner with a camera before we clean it. Too many Tarzana chimneys have original Gelco flues that were converted from wood to gas decades ago, and a cleaning that ignores the liner condition is a wasted trip. Call (559) 249-1347 and we’ll show you what we mean.

Why Tarzana Residents Choose Us for Gelco Service
We’ve spent years pulling apart Gelco flue systems in mid-century Valley homes, and we know their quirks. The seam joints, the cap mesh, the way the smooth stainless grabs creosote differently than clay tile. Cory Mitchell, our owner and lead technician, learned combustion safety and venting systems at Los Angeles Trade-Technical College, and he’s spent the better part of two decades on rooftops across the West San Fernando Valley. You don’t have to take our word on the condition of your chimney. We’ll hand you a camera report. As Cory likes to say, I’d rather show you the problem on your phone screen than hand you a bill you don’t understand.
We’re an independent Gelco service provider, which matters more than most people realize. We don’t answer to a manufacturer’s sales targets. If your Gelco liner is salvageable with genuine Gelco parts, we’ll do that. If it’s not, we’ll tell you plainly and quote a replacement that makes sense for a 1960s Tarzana ranch, not a showroom. Every visit includes a written price before work starts, a written guarantee on repairs for 365 days, and live arrival tracking through The Relay Visibility Guarantee.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Tarzana
- Creosote glaze on Gelco stainless surfaces. After a Santa Ana windstorm drops limbs from Tarzana’s mature trees, plenty of homeowners burn the fallen wood without seasoning it. That green wood produces a creosote that bonds hard to Gelco’s smooth stainless liner. A standard brush pass won’t always get it. We use mechanical rotary heads sized to the liner diameter and follow with a camera check to confirm the surface is actually clean.
- Acidic condensate corrosion at seam joints. This is the Tarzana classic. A wood burning fireplace converted to gas decades ago vents cooler, lower-volume exhaust than the original Gelco liner was sized for. Condensate pools at the bottom seams and eats through the steel. We see this most often in homes south of the 101 where gas log sets replaced wood fires in the 1970s.
- Soot and debris blockages from unused flues. Many Tarzana chimneys haven’t been touched since oil-burning furnaces were swapped for gas. Dead birds, old nests, and hardened soot sit in the flue for years. When someone finally lights a fire, the smoke has nowhere to go.
- Damaged Gelco cap mesh from wind-blown litter. Tarzana’s pepper trees and eucalyptus drop plenty of material during high winds. Gelco cap screens do their job but clog, and a clogged cap starves a gas fireplace of combustion air. We replace mesh, rebuild cap frames, or install custom multi-flue caps depending on what’s on the existing crown.
- Warped liner sections from flash fires. A flue packed with old soot and animal debris can flash over when a homeowner starts a fire after years of disuse. The intense heat warps thin Gelco sections, especially oval flex liners in tight mid-century flues. We catch this during cleaning and document it before recommending liner replacement.
Gelco Service in Tarzana: What Local Conditions Mean for Your Equipment
Tarzana’s ranch homes along Ventura Boulevard and south of the 101 were built during the San Fernando Valley’s post-war boom, and many still have their original wood-burning fireplaces. What changed is how people heat them. In the 1970s, a lot of those fireplaces were converted to gas log sets to keep up with air quality rules and convenience. The old Gelco liners, typically clay-tile-wrapped or early stainless, stayed in place. They were sized for wood smoke at 800 degrees plus. A gas log set puts out exhaust at maybe 300 to 400 degrees. That cooler exhaust condenses inside the flue, and the condensate is acidic. Over thirty or forty years, it eats at the Gelco liner’s bottom seam joints until the liner fails silently. A homeowner sees nothing, smells nothing, until they get a sulfur odor in the living room or a CO alarm picks up something. That’s the exact scenario we found on Vanalden Avenue, where a Gelco Heatguard liner had corroded at the bottom seam and was leaking exhaust into the firebox chase. The fix was a full liner replacement, but the point is it took a Level 2 camera scan to find it. A visual chimney sweep would have missed it entirely. That’s what we mean when we say Tarzana’s converted fireplaces need a different kind of cleaning service, one that starts with an inspection and assumes nothing.
Gelco Models & Products We Service in Tarzana
We service the full Gelco line we see in Tarzana homes: the Gelco Classic flue liner system, the Gelco Heatguard series, Gelco stainless steel masonry liner kits, and Gelco oval flex liners. When a liner is structurally sound, we use genuine Gelco liner sections and cap components to keep it that way. When a mid-century chimney has an obsolete liner diameter that Gelco no longer produces, we don’t hunt down leftover stock. We spec a premium aftermarket stainless flex liner with a lifetime warranty, which often outlasts the original unit anyway. We keep common liner diameters and cap components stocked locally so Tarzana turnaround is measured in days, not weeks. We also provide Gelco sales & service for homeowners who want guidance before committing to a repair.
See the difference
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After
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Before
AfterGelco Service Pricing in Tarzana
A standard chimney sweep in Tarzana typically runs $189 to $289 for a single flue with a standard Gelco liner. Add a Level 2 camera inspection and the total usually lands between $329 and $469. Liner replacement is a different job entirely and depends on flue height, diameter, and access from the roof. We give a written line-item estimate before work starts, so you’re never surprised by a number after we’re already on the roof. The free estimate covers a visual check, liner condition assessment, and a clear recommendation on what can wait and what can’t. Call (559) 249-1347 for an exact quote. We’ll walk you through what we’re seeing and what it should cost before you commit to anything.
Serving Tarzana, CA - Our Local Coverage Area
We’re based in the Tarzana 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 Tarzana
It depends entirely on the liner’s condition, not its age. A Gelco liner from the 1960s sized for wood smoke may vent gas exhaust poorly because gas burns cooler and produces acidic condensate. If the seams are intact and a camera scan shows solid metal, it can often be kept in service. If we see corrosion at the bottom seams, which is common in Tarzana homes converted to gas in the 1970s, we’ll recommend replacement before you use the fireplace again. Call (559) 249-1347 and we’ll scope it and show you the footage.
Santa Ana winds drive leaf litter, eucalyptus bark, and pepper tree debris directly into cap mesh and crown areas. The Gelco cap’s screen mesh clogs, which restricts draft and can fill your flue with dry fuel that makes a flash fire more likely. Wind also loosens cap fasteners over repeated gusts. During cleaning we inspect the cap, clear the mesh, and check the anchor points. If the mesh is torn, we replace it with the right Gelco cap component or a matching aftermarket part.
Usually yes. Many mid-century Tarzana chimneys have slightly undersized or irregular flue dimensions from original clay tile construction. An oval flex liner often needs to be measured and cut on site to match the exact flue path. We take field measurements from the crown down to the firebox and crimp fittings to fit the liner properly, so you’re not forcing a round liner through an oval-shaped chimney and hoping for the best. A proper fit means less creosote accumulation and easier future cleanings.
Musty odors from an unused Gelco fireplace in summer usually come from moisture mixing with old creosote, soot, or nesting debris in the flue. Tarzana’s mild, wet winters leave residual moisture in unused chimneys, and when summer heat hits, the odor rises. The fix is a thorough cleaning to remove the organic material plus a check of the cap and crown for water entry. If water is getting in through cracked crown mortar or a failed cap, we address that too. Sealing the flue with a top-sealing damper often stops the summer smell for good.
We do. Liner replacement is not always necessary to repoint the exterior masonry, and we prefer to preserve a Gelco liner that’s still structurally sound. We clean the joints, remove loose mortar, and repoint with a mix matched to the original. The liner stays in place while we work, and we camera-check it before and after to make sure nothing shifted. Chimney Repair - Tarzana is a common need on ranch homes where the chimney crown and upper courses have taken decades of sun and rain.
Service Areas Near Tarzana
We handle Gelco chimney cleaning and repair across the West Valley. You’ll find us working regularly in Tarzana service area neighborhoods, plus Gelco service in Woodland Hills, Gelco service in Van Nuys, Calabasas, Agoura Hills, and West Hills. Each city has its own mix of mid-century and newer construction, but the Gelco liner issues stay consistent: age, conversion, and neglect over time.
Book Your Gelco Service in Tarzana Today
If you have a Gelco chimney in Tarzana that hasn’t been inspected in years, or you’re not sure when it was last cleaned, we’ll scope it, clean it, and give you a written report with photos. Call (559) 249-1347 for a free estimate and live arrival tracking on the day of your appointment.
Written by Cory Mitchell, Owner & Lead Technician at Hadley Chimney Woodland Hills, serving Tarzana and the West San Fernando Valley since 2003.