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 Glen Ellyn, IL | Duke Chimney Sweep
We provide independent Gelco chimney cleaning and repair across Glen Ellyn, including the 60137 and 60138 ZIP codes. The thing that sets our Gelco work apart here is that we know how these fireplaces behave inside the village’s older masonry chimneys, where clay tile flues and heavy oak burning create a specific set of problems. If you own a Gelco fireplace or insert in Glen Ellyn, call (844) 660-6510 and we’ll tell you exactly what your chimney needs.
Why Glen Ellyn Residents Choose Us for Gelco Service
Gelco fireplaces and inserts show up in a lot of Glen Ellyn homes, especially the pre-war colonials and Tudors near downtown and around Lake Ellyn. We’ve serviced enough of them to know which components wear out first in this climate and what a proper fix looks like. Rob Szymanowski, our owner, grew up in Wheeling and learned the mechanical side of this trade at Harper College before spending years working chimneys across Cook and Lake counties, with experience that now extends to Gelco in Lombard and nearby communities. That background means we don’t guess at flue conditions. We inspect, we measure, and we explain what we find in plain English.
We’re an independent service provider, not a Gelco authorized dealer, which means we diagnose what’s actually going on with your fireplace rather than steering you toward a brand replacement. For more on our full scope of work, see our Gelco sales & service page.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Glen Ellyn
- Creosote buildup from oak and maple. Glen Ellyn homeowners around Lake Ellyn burn a lot of seasoned hardwood, which produces dense creosote that adheres to Gelco firebox walls and clay tile flues. We remove the full glaze layer, not just the loose soot, so your first burn doesn’t smoke or stink.
- Animal intrusions in uncapped flues. The village’s heavy tree canopy means squirrels and raccoons find their way into Gelco flues year-round. We clear nests, remove debris, and install properly sized multi-flue caps so they can’t get back in.
- Seized or corroded Gelco dampers. After a full burning season, the damper frame on many Gelco units corrodes and sticks. You’ll notice it as a draft that won’t close or a fireplace that leaks cold air all summer. We replace the damper with OEM Gelco parts where available, or a properly sized aftermarket equivalent when OEM is discontinued.
- Cracked clay tile flues behind Gelco fireboxes. Homes built between 1920 and 1950 often have original clay tiles that are undersized for the heat output of a modern Gelco firebox. Cracks let creosote and heat reach the surrounding masonry, which is a fire hazard. We identify this during a Level 2 inspection and recommend relining before the first burn.
- Freeze-thaw damage to firebox brick and mortar. Glen Ellyn sits in USDA Zone 5b, and the winter freeze-thaw cycle is brutal on exterior masonry. When a crown or flashing has failed, spring rain gets behind the firebox brick and washes out the mortar joints. We repair the masonry and address the water entry point so it doesn’t happen again next season.
Gelco Service in Glen Ellyn: What Local Conditions Mean for Your Equipment
Here’s something specific to Glen Ellyn that most generic chimney pages won’t tell you: the Village enforces its own permitting and inspection requirements for chimney work, and they’re stricter than what you’ll find in neighboring towns. That means a Gelco reline, cap replacement, or firebox repair here has to be documented and inspected, not just swept and forgotten. If we’re doing a repair that changes the flue or cap configuration, we’ll walk you through the permit process and make sure the work passes Village inspection the first time. This matters for Gelco owners in particular because many of these units were installed decades ago, before current flue sizing and clearance standards existed. A chimney that passed inspection in 1985 might not meet today’s code, and Glen Ellyn’s inspectors will catch that. We’d rather identify it ourselves during the cleaning and inspection than have you find out after a failed inspection or, worse, a chimney fire.
Near Lake Ellyn, our crew was called to a 1930s brick colonial whose Gelco heat-circulating fireplace smoked into the room on the first fall burn. A Level 2 inspection found a raccoon nest blocking the flue plus a cracked tile and a seized damper. We cleared the nest, removed the built-up creosote from years of oak and maple, replaced the damper, and installed a properly sized multi-flue cap so the chimney was ready for the season and passed the Village’s inspection.
Gelco Models & Products We Service in Glen Ellyn
We service the full range of Gelco residential products you’ll find in Glen Ellyn homes: wood-burning fireplaces, heat-circulating fireplace units, wood and gas inserts, multi-flue and custom chimney caps, replacement dampers, and firebox components. Our parts approach is straightforward. Where Gelco OEM parts are still available, we use them. Where they’ve been discontinued or the pricing doesn’t make sense for an older unit, we’ll tell you that and use a quality aftermarket equivalent. You’ll always know which is which and why.
See the difference
Before
After
Before
After
Before
AfterGelco Service Pricing in Glen Ellyn
A standard Gelco chimney cleaning and Level 1 inspection in Glen Ellyn typically runs $220 to $300, depending on flue condition and accessibility. A Level 2 inspection, which we recommend for any home that hasn’t been serviced in two years or more or has had animal activity, adds $150 to $250. Here’s what drives the cost:
- Flue height and roof pitch on older Glen Ellyn homes
- Glazed creosote removal from heavy hardwood burning
- Animal nest or debris removal
- Damper inspection and lubrication
- Cap installation or replacement if needed
Our estimates are free and include a camera inspection with photo documentation so you can see exactly what we saw. Call (844) 660-6510 to schedule, and we’ll give you a firm number before any work begins.
Serving Glen Ellyn, IL — Our Local Coverage Area
We’re based in the Glen Ellyn area and know this community well, and we also provide Bloomingdale Gelco service for homes just west of here. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – Gelco Chimney Cleaning in Glen Ellyn
If your Gelco fireplace has been cleaned within the last 12 months with no changes to the system, a Level 1 inspection is standard. If you’ve just bought the home, haven’t used the fireplace in years, or suspect animal activity, we recommend a Level 2 inspection, which includes a camera scan of the flue interior. This is especially important in pre-war Glen Ellyn homes where clay tile flues may have deteriorated. Call (844) 660-6510 and we’ll help you figure out which level fits your situation.
First-burn smoke almost always means a blocked or restricted flue. In Glen Ellyn, the two most common causes are animal nests built during the spring and summer and heavy creosote deposits left over from last season’s oak and maple burning. A seized damper can also restrict draft. We can clear the blockage, clean the flue, and get your Gelco drafting properly before you light another fire.
Yes, Glen Ellyn enforces its own permitting requirements for chimney modifications, including relining and cap replacement on some homes. We handle the documentation and coordinate with the Village so your repair passes inspection. It’s part of why we document everything with photos and written reports rather than just sweeping and leaving a receipt.
In most cases, yes. We repair dampers, firebox brick, mortar joints, and crowns routinely. We only recommend replacement when the unit or flue is genuinely unsafe and can’t be relined or repaired to code. That’s the repair-first approach we’ve built our business on, and it saves Glen Ellyn homeowners thousands of dollars compared to a full fireplace replacement.
Zone 5b winters mean dozens of freeze-thaw cycles every year, and each one puts stress on mortar crowns, flashing, and firebox brick. Water gets into small cracks, freezes, expands, and widens the crack. Over a few seasons, that turns a minor crown issue into a masonry repair job with water damage behind the firebox. We inspect for freeze-thaw damage during every cleaning so small cracks don’t become big expenses, and we bring that same thoroughness to our Glendale Heights Gelco service as well. Call (844) 660-6510 to schedule yours before the winter season kicks in.
Service Areas Near Glen Ellyn
We serve Glen Ellyn and the surrounding communities, including Glen Ellyn service area coverage through the western suburbs. Our Gelco chimney cleaning also reaches Schaumburg, Hoffman Estates, Roselle, and Hanover Park. For Gelco work further north, see Gelco service in Long Grove. We also cover Villa Park and nearby towns, detailed on our Gelco service in Villa Park page.
Book Your Gelco Service in Glen Ellyn Today
If your Gelco fireplace or insert is overdue for a cleaning, or if you’ve noticed smoke, odor, or a damper that won’t seat, call us now at (844) 660-6510 — we also offer Gelco service in Wheaton and surrounding towns. We’ll schedule a time that works for you and give you a straight answer about what your chimney needs. Tell me what you’re seeing, and I’ll tell you what it actually means.
Written by Rob Szymanowski, Owner at Duke Chimney Sweep, serving Glen Ellyn and the surrounding western suburbs.