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 Bartlett, IL | Duke Chimney Sweep
We provide independent Gelco chimney cleaning and inspection across Bartlett, and the thing that separates our work here is familiarity with the thin-walled prefab flues in the 1970s – 1990s subdivisions. A standard sweep often misses what’s actually happening inside those 8-inch Gelco flues, especially on fireplaces converted to gas logs. Rob Szymanowski and our crew service Gelco systems weekly in Bartlett, and we’ll tell you plainly whether your fireplace needs a cleaning, a repair, or more involved work. Call (844) 660-6510 for a free estimate.
We’re an independent Gelco sales & service provider, not a manufacturer-authorized shop. That matters because we diagnose Gelco products on their merits. No warranty claims from Oak Brook, no factory relationship coloring what we tell you. Just what the flue, cap, and firebox actually show us during an inspection.
Why Bartlett Residents Choose Us for Gelco Service
Most chimney companies in the northwest suburbs treat Gelco prefab fireplaces as generic metal boxes. We don’t. Our techs know how Gelco’s cap assemblies seat on short exterior chimneys, how their firebox refractory panels wear, and what happens to those 8-inch flues when a wood-burning unit gets converted to vented gas logs. That’s the difference between a sweep that knocks loose soot and a service call that actually protects the house.
Rob grew up in Wheeling and spent enough winters near the Chevy Chase Country Club area to respect what a poorly maintained chimney can do to a house. He learned the mechanical and safety fundamentals through the HVAC and building systems program at Harper College in Palatine, then spent years working chimneys and dryer vents across Cook and Lake counties before going out on his own. The lesson he carried from all of it: tell the homeowner what you found in plain English, and never invent a problem that isn’t there.
We stock OEM-equivalent Gelco-matched caps, dampers, and firebox panels locally, so Bartlett jobs don’t wait on parts shipped from a distributor, and the same holds true for our Roselle Gelco service.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Bartlett
- Glazed, hardened creosote on thin-walled prefab flues. Bartlett’s freeze-thaw winters bake creosote onto the metal flue until it’s glassy and stubborn. A light standard sweep won’t touch it. We use rotary cleaning to break the glaze without gouging the thinner Gelco flue walls, which are less forgiving than the brick-and-mortar chimneys downtown.
- Corrosive residue in 8-inch flues converted to gas logs. The east-side subdivisions are full of Gelco fireplaces built for wood but running vented gas logs now. Gas combustion leaves acidic condensation that clings to the flue, and on many Gelco calls in Bartlett we find rust creeping along the firebox liner underneath it. A standard sweep misses this entirely.
- Aging Gelco caps and spark arrestors that corrode and loosen. Snowmelt, ice, and wind work on the cap joints of short exterior chimneys. We routinely find Gelco caps on Bartlett homes that have pulled loose or rusted through, letting water and downdrafts into the flue. Sometimes it’s a simple cap replacement. Sometimes the water’s already done damage below.
- Cracked damsels and warped damper plates. During a Level 2 inspection of Gelco prefab fireplaces, we often find damper components that have warped from heat cycles. A damper that won’t seal properly sends heated air up the chimney all winter and creates a draft pathway even when the fireplace isn’t running.
- Deteriorated firebox refractory panels. These panels crack over time, and in Gelco prefab units they’re often overlooked because the outer metal shell looks fine. If the refractory is compromised, the firebox isn’t safe to burn. We’ll show you camera evidence before recommending any repair.
Gelco Service in Bartlett: What Local Conditions Mean for Your Equipment
Here’s the Bartlett-specific issue we deal with more than anywhere else in our service area. In the east-side subdivisions, a lot of 1970s and early-80s Gelco prefab fireplaces left the factory with 8-inch flues designed for wood. Sometime in the last twenty years, most of those fireplaces were converted to vented gas logs. That conversion creates a chemistry problem: gas combustion produces acidic water vapor, and in a flue sized for wood, it condenses and lingers. The residue corrodes the flue and, more critically, the firebox liner. So on nearly every Gelco call we run in Bartlett’s east side, we pull the logs and inspect the liner for hidden rust. It’s not a scare tactic. It’s the one check that tells you whether you need a cleaning and recoat, or whether that prefab firebox has reached the end of its serviceable life. On a two-story Colonial out that way, our tech opened a Gelco fireplace still burning vented gas logs and found the 8-inch flue coated in corrosive residue with rust running along the firebox liner. We rotary-cleaned the flue, treated the liner, and replaced a corroded Gelco cap that had been letting snowmelt in. The fireplace drew cleanly again, and the homeowner had a clear repair-vs-replace answer instead of a guess.
Gelco Models & Products We Service in Bartlett
Our crew works on the Gelco systems common to Bartlett’s housing stock: factory-built wood-burning fireplaces from the 1970s through the 1990s, the 8-inch-flue prefab units later converted to gas logs, and Gelco inserts with multi-flue cap assemblies on short exterior chimneys. We also provide Gelco repair in Streamwood. We fit OEM-equivalent Gelco-matched caps, dampers, and firebox panels where a direct replacement exists. When OEM parts are discontinued, we use quality aftermarket components and tell you exactly what we’re installing and why. No mystery parts. No distributor markup. Just what the fireplace needs and nothing it doesn’t.
See the difference
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AfterGelco Service Pricing in Bartlett
Gelco chimney cleaning in Bartlett typically runs $160 to $285, depending on the fireplace’s condition and accessibility. The real cost drivers are the degree of creosote buildup, whether the unit needs rotary cleaning, and whether a cap or damper component has to be replaced. A Level 2 inspection with camera documentation adds to the total because it’s a more thorough equipment and flue survey, but it gives you verifiable evidence. If your Gelco system has been burning gas logs, expect the liner inspection to be part of the job, not an add-on. For an exact quote on your Bartlett home, or to ask about our Carol Stream Gelco service, call (844) 660-6510. Estimates are free.
Serving Bartlett, IL — Our Local Coverage Area
We’re based in the Bartlett area and also handle Hanover Park Gelco service, 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 Bartlett
My Bartlett home has a 1970s – 80s Gelco prefab fireplace now burning gas logs – does a standard sweep clean it? No, a standard sweep typically leaves behind the corrosive residue that forms in those wood-designed, gas-converted 8-inch flues. We rotary-clean the flue and inspect the firebox liner on every Gelco call like this in Bartlett. Call (844) 660-6510 for an inspection and quote.
Why does my Gelco chimney need cleaning more often in Bartlett winters? Bartlett’s freeze-thaw cycles drive moisture into the flue and cap, which interacts with creosote to form sticky, glazed deposits that build faster than dry flue buildup. More frequent cleaning isn’t a sales line. It’s a fact of the climate here. Call (844) 660-6510 to schedule before the next cold snap.
Can you replace just the cap on my Gelco prefab chimney? Yes, cap replacement is one of the most common repairs we perform on Gelco systems in Bartlett. We source an OEM-equivalent Gelco-matched cap or a quality aftermarket direct-fit piece, then verify the flue and firebox are sound before closing up. Call (844) 660-6510 and we’ll inspect the cap and give you a quote.
What does a Level 2 inspection cover on a Gelco prefab system? A Level 2 inspection goes beyond the visible masonry check and looks inside the flue and firebox with camera equipment, including the damper, refractory panels, and the cap assembly. On a Gelco prefab fireplace, this is where we typically find hidden rust, cracked panels, or warped damper plates that a basic sweep won’t reveal. Call (844) 660-6510 to book one for your Bartlett home.
Do you repair spalling brick or crown damage on Gelco’s short exterior chimneys? Yes, the masonry chase around Gelco’s short exterior chimneys is part of the system, and Bartlett’s ice dams and freeze-thaw cycles do real damage to crowns and flashing. We assess and repair that masonry damage alongside the prefab components. An estimate is free at (844) 660-6510.
Service Areas Near Bartlett
Beyond Bartlett, we work the surrounding communities, including Gelco service in Palatine and Gelco service in Inverness. Our Bartlett service area coverage reaches Schaumburg, Hoffman Estates, Roselle, and Hanover Park. If you’re in one of these nearby towns, call and ask. Chances are we’re already working in your neighborhood.
Book Your Gelco Service in Bartlett Today
Tell me what you’re seeing, and I’ll tell you what it actually means. That’s how Rob and our crew start every Bartlett Gelco call. If you’ve been burning gas logs in an older prefab fireplace, if the cap looks corroded, or if you just want a trained eye on the system before winter, call (844) 660-6510 for a free estimate. We’ll show you what we find.
Written by Rob Szymanowski, Owner at Duke Chimney Sweep, serving Bartlett and the greater northwest suburbs.