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.
HeatShield Chimney Cleaning in Glen Ellyn, IL | Duke Chimney Sweep
We’re Duke Chimney Sweep, an independent HeatShield service provider working throughout Glen Ellyn’s 60137 and 60138 ZIP codes. We clean, inspect, and maintain chimneys that have been treated with HeatShield Cerfractory Flue Sealant, and we’re one of the few companies in the area that can tell you whether your existing coating is still bonded properly or starting to fail. What makes our work here different is simple: we know these pre-war clay-tile flues, we know how HeatShield behaves under Glen Ellyn’s freeze-thaw cycles, and we document everything with camera evidence. Call (844) 660-6510 for an inspection.
Why Glen Ellyn Residents Choose Us for HeatShield Service
Most chimney companies in the western suburbs see HeatShield as a box on a product sheet. We see it as a specific ceramic material that has to bond correctly to the tile beneath it, and that bond behaves differently in a 1930s Lake Ellyn flue than it does in a 1990s subdivision out by Route 53. Rob Szymanowski, our owner, learned the mechanical side of this trade through the HVAC and building systems program at Harper College before spending years working chimneys across Cook and Lake counties. When he talks about a HeatShield coating delaminating after a wet winter, he’s describing something he’s pulled out of more than a few Glen Ellyn flues. We also carry genuine HeatShield Cerfractory materials and OEM transition components rather than generic sealants, because a reline is only as good as its bond to the existing tile. If you want HeatShield sales & service handled by people who treat it as a material, not a checkbox, that’s us.
Styles & brands we work with





Common HeatShield Chimney Cleaning Problems We Solve in Glen Ellyn
- Delamination and flaking after freeze-thaw cycling. Glen Ellyn sits in USDA Zone 5b, so a poorly capped flue catches snow and rain, then freezes and thaws from November through March. Older HeatShield coatings that weren’t applied over properly prepped tile start flaking at the joints come spring. We see this most in April and May.
- Coating pulling away at the flue-to-damper transition. Homeowners near Lake Ellyn burn a lot of oak and maple, and that dense hardwood creosote sits right where the flue meets the damper. It breaks down the sealant bond over time. We clean it out, assess what’s left, and tell you honestly if the coating needs repair or full reapplication.
- Insufficient coverage over already-spalling clay tile. The 1920s through 1950s brick colonials and Tudors downtown often have original clay flues with deteriorated surfaces. If a previous contractor applied HeatShield without first addressing spalling, you get voids where creosote and moisture reach the masonry. We find those voids with a camera and fix them properly.
- HeatShield applied where an insulated liner was the right call. Older Glen Ellyn homes frequently have undersized flues that were never sized correctly for modern appliances. A coating won’t fix an undersized flue. We’ll tell you that before we take your money, and we’ll recommend a DuraFlex insulated liner instead if that’s what the system actually needs.
- Animal intrusion compounding coating failure. Glen Ellyn’s heavy tree canopy means squirrels and raccoons nest in uncapped flues year-round. Nest debris holds moisture against the HeatShield surface and accelerates breakdown. We pull the debris, assess the coating, and cap the flue so it doesn’t happen again.
HeatShield Service in Glen Ellyn: What Local Conditions Mean for Your Equipment
Here’s the thing most generic chimney pages won’t tell you: Glen Ellyn’s Village permitting and inspection expectations for chimney work are stricter than in neighboring towns. When we do a HeatShield reline or repair here, we don’t just slap on a coating and hand you a bill. We start with a documented Level 2 inspection and camera evidence of what the flue actually looks like before and after. Homeowners in Wheaton or Lombard often aren’t asked for that paperwork. In Glen Ellyn, it’s the baseline. That’s not a burden; it’s actually the right way to do the work, because it forces everyone to see the flue for what it is. If you own a 1930s brick colonial near Lake Ellyn with original clay tile, that camera footage is the difference between a HeatShield reline that holds for 20 years and one that flakes off in three. “Tell me what you’re seeing, and I’ll tell you what it actually means.” That’s how Rob puts it, and it applies to every inspection we do here.
HeatShield Models & Products We Service in Glen Ellyn
We work with the full HeatShield Cerfractory line, including the Flue Sealant applied over existing clay tile, the Resurfacing System for deteriorated mortar joints, and the insulated liner-backed relining option for undersized flues. We also handle the junction and transition seal components where the flue meets the damper, a spot that fails more than most homeowners realize. We stock genuine HeatShield materials and compatible OEM parts locally, so a Glen Ellyn repair doesn’t wait on a shipment from out of state. When we say specification-grade, this is what we mean: the same materials a chimney engineer would specify, not whatever’s on the shelf at the hardware store.
See the difference
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After
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AfterHeatShield Service Pricing in Glen Ellyn
A straightforward HeatShield chimney cleaning and inspection in Glen Ellyn typically runs $149 to $379, depending on flue condition and how much creosote has built up. A HeatShield inspection with camera documentation is included in that range. Full HeatShield Cerfractory relining costs between $2,500 and $6,000 here, driven by flue height, tile condition, and whether the damper transition needs full replacement. Level 2 inspections run $250 to $1,000 depending on scope. Those are honest ranges, not bait pricing. The free estimate we give you includes camera evidence of what we found, so you can see the flue with your own eyes before deciding. Call (844) 660-6510 and we’ll schedule it.
Serving Glen Ellyn, IL — Our Local Coverage Area
We’re based in the Glen Ellyn 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 – HeatShield Chimney Cleaning in Glen Ellyn
Yes, Glen Ellyn’s Village inspection requirements are stricter than surrounding towns, and a reline typically involves a permit and inspection. We handle the documentation and camera evidence as part of the job, so you’re not sorting out Village paperwork on your own. Call (844) 660-6510 and we’ll walk you through exactly what your home needs.
No. HeatShield coats the inside of the existing flue; it doesn’t change the flue’s dimensions. If the flue is undersized for your appliance, you need an insulated liner or a rebuild. We’ll tell you that after we measure, not after you’ve paid for a coating that won’t work. Call (844) 660-6510 for an assessment.
Glen Ellyn’s tree canopy is dense, and uncapped clay flues are easy entry points for squirrels and raccoons, especially near Lake Ellyn and the older downtown streets. We pull the nest debris, check for coating damage from trapped moisture, and install a proper multi-flue cap so they can’t return. Call (844) 660-6510 to schedule it.
You’ll notice flaking material at the bottom of the firebox, a chalky residue on the damper, or water staining on the chimney breast after a hard rain. Those are signs the bond is breaking down. The only way to confirm is a camera inspection. Call (844) 660-6510 and we’ll show you the footage ourselves.
Depends on the condition of the exterior masonry and the crown. Glen Ellyn’s freeze-thaw cycles crack mortar and flashing, and if water is getting in from outside, a reline alone won’t stop the deterioration. We’ll assess both the flue and the exterior and tell you what actually needs doing. Call (844) 660-6510 for an honest assessment.
Service Areas Near Glen Ellyn
We serve Glen Ellyn and the surrounding communities, including Schaumburg, Hoffman Estates, Roselle, Hanover Park, and Medinah. If you’re in any of those towns and need HeatShield work done, we’ll bring the same camera-documented inspection process. If you’re further north, we also offer HeatShield service in Long Grove, and if you’re a little south, HeatShield service in Villa Park is part of our coverage area too. Glen Ellyn service area details cover the full list of neighborhoods we work in.
Book Your HeatShield Service in Glen Ellyn Today
If you’re in Glen Ellyn and your HeatShield reline hasn’t been inspected in a few years, or you’re seeing flakes in the firebox, call us. We’ll get you on the schedule, run the camera, and show you what’s actually going on. Call (844) 660-6510 for a free estimate.
Written by Rob Szymanowski, Owner at Duke Chimney Sweep, serving Glen Ellyn since our first day in the field.