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 Lombard, IL | Duke Chimney Sweep
We provide independent Gelco chimney cleaning and service across Lombard, IL, from Gelco sales & service work on caps, dampers, and firebox components to full creosote removal and Level 2 inspections. What makes our Gelco work here different is simple: we know the original clay flues and post-war brick chimneys these components sit on, and we know that a draft complaint in Lombard is often a clogged Gelco cap, not a dirty flue. Call (844) 660-6510 for a straight answer and a free estimate.
Why Lombard Residents Choose Us for Gelco Service
Gelco components show up on a lot of chimneys in our Lombard service area, especially on the 1950s and 1960s brick ranches and split-levels that make up so much of this village. We’ve pulled apart enough Gelco dampers, caps, and gas-log kits on these homes to know what holds up and what doesn’t. Rob Szymanowski, our owner, grew up in Wheeling and spent years working chimneys and dryer vents across Cook and Lake counties before building Duke Chimney Sweep. He learned the mechanical and safety fundamentals through the HVAC and building systems program at Harper College in Palatine. That background is why we approach every Gelco job as an independent service provider: diagnose what’s actually failing, explain it in plain English, and repair it without inventing problems that aren’t there.
We’re not a manufacturer-authorized shop, and we’re upfront about that. It means we have no incentive to sell you a factory replacement when a properly sized aftermarket cap or damper will do the same job for less. It also means we inspect the entire venting system, not just the branded component. When a Gelco cap is clogged or a damper won’t seat, the cause often traces back to the flue beneath it. In Lombard, that flue is usually an original clay tile liner that’s been heating and cooling through fifty or sixty winters.
If you’re in the 60148 ZIP code and want someone who knows this housing stock, we’re a local call for Gelco in Villa Park and surrounding areas. We keep OEM-style and quality aftermarket Gelco-compatible parts stocked for fast turnaround, and we’re familiar with the village permit process for any masonry chimney work.
Styles & brands we work with





Common Gelco Chimney Cleaning Problems We Solve in Lombard
- Clogged single-flue caps from leaf debris. Lombard’s mature oaks and maples drop a heavy load of wet leaves onto roofs every late autumn, and Gelco single-flue caps on windward-facing chimneys collect them fast. By the first cold snap, the cap is packed solid and the fireplace smokes or won’t draft. It presents exactly like a dirty flue, but the flue is often fine.
- Glaze creosote behind Gelco caps on original clay flues. Many Lombard ranches still have the original clay tile liners, and those liners crack and spall under decades of October-through-April heating cycles and freeze-thaw stress. Glaze creosote works into the mortar joints and behind the Gelco cap hardware, where a basic brush-and-vacuum cleaning misses it.
- Seized Gelco top-mount dampers. Homes that burn wood fireplaces or gas logs daily for months at a time put real wear on damper assemblies. We routinely find Gelco top-mount dampers corroded or seized partway open, which leaves the flue drafting poorly and sends conditioned air up the chimney all winter.
- Rusted cap screens and loose fasteners. Wind exposure on Lombard’s open ranch roofs is harder on Gelco screens and mounting hardware than most people expect. Rusted screens let debris and animals in, and loose fasteners let water work its way under the cap and into the crown.
- Gas-log insert draft complaints tied to cap blockage. Gelco gas-log kits installed in older wood-burning fireboxes often draft marginally even when clean. Add a partially blocked cap or a damper that won’t open fully, and the result is a gas fireplace that smokes, soots, or shuts down on a CO sensor.
Gelco Service in Lombard: What Local Conditions Mean for Your Equipment
Lombard’s village canopy is the detail that changes everything about Gelco service here. The dense grid of mature oaks and maples that lines streets from the downtown area out to the 60148 neighborhoods drops a late-autumn leaf load unlike anything you’d see in a newer subdivision. Those leaves collect on roof surfaces, slide toward the chimney, and pack into cap screens and flue openings. By the first cold snap, a Gelco cap that was clear in September can be completely blocked. The draft complaint that follows isn’t a dirty flue, and cleaning the flue won’t fix it. We’ve learned to look at the cap first on every fall call in Lombard, and that simple habit saves homeowners from paying for a sweep they didn’t need.
On a 1960s brick ranch off the mature tree-lined grid near downtown Lombard, our tech pulled a Glen Ellyn Gelco service call for a single-flue cap stuffed with wet maple leaves that had killed the draft on a wood fireplace the homeowners had been burning daily since October. Under the cap we found glaze creosote and two hairline-cracked clay tiles, so we swept and removed the creosote, replaced the cap with a screened Gelco-style unit, and flagged the tiles for a Level 2 follow-up. The fireplace drafted cleanly that same evening.
Then there’s the permit layer. Village code in Lombard requires a permit for any masonry chimney alteration, which includes some cap replacements and mortar repair depending on the scope. A sweep who doesn’t know the local rules can leave you with a citation or an unpermitted repair that bites you at resale. We know what triggers a permit here and what doesn’t, and we’ll tell you before we start.
Gelco Models & Products We Service in Lombard
We work on the Gelco product lines most common on Lombard chimneys, including single-flue stainless chimney caps, multi-flue caps for wider masonry chimneys, top-mount damper assemblies, and Bloomingdale Gelco service-style gas-log fireplace insert kits. The single-flue cap is the one we see most often on ranches and split-levels, while multi-flue caps show up on larger homes with two or more flues sharing a chase.
Parts approach is straightforward. When a Gelco damper or cap is beyond service, we fit quality aftermarket replacements sized to the existing footprint, and we use OEM-style components where fit and function genuinely depend on it. We don’t push a full factory replacement when a properly matched part restores the system for years. For flue tile work, our first call is always repair: if the clay liner is sound except for cracked caps or spalled mortar, repointing and a new cap beat a rebuild every time. Relining only comes up when the liner itself is compromised.
See the difference
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AfterGelco Service Pricing in Lombard
Gelco chimney cleaning in Lombard typically runs between $229 and $400 for a standard sweep and inspection, depending on flue condition, creosote load, and whether the cap or damper needs attention. If glaze creosote is present, removal adds $150 to $250. Gelco cap replacement usually falls between $150 and $450 depending on the flue size and whether it’s a single-flue or multi-flue unit. Damper repair or replacement runs $250 to $600. Level 2 inspections for a real estate transaction or after a suspected flue event run $200 to $450.
Every estimate starts with a camera inspection so you can see exactly what’s happening inside your flue. Nothing gets recommended without photo evidence you can review yourself. If the flue is clean and the cap is the problem, we’ll tell you that and save you the cost of an unnecessary sweep. Call (844) 660-6510 for a free estimate on your Gelco system in Lombard.
Serving Lombard, IL — Our Local Coverage Area
We’re based in the Lombard 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 Lombard
In late fall, a fireplace that smokes only when the leaves are down is usually a blocked Gelco cap, not a dirty flue. Lombard’s mature oak and maple canopy packs wet leaves into cap screens precisely during that window, and the draft complaint is the cap telling you it can’t breathe. We check the cap first on every fall call in Lombard, and that one step resolves more smoke complaints than any sweep. Call (844) 660-6510 and we’ll take a look.
It depends on the scope. A straight cap swap with no masonry alteration typically doesn’t require a permit, but any mortar repair or chimney alteration that touches the brick structure usually does under Lombard village code. We know where the line sits locally and we’ll tell you before the work starts, so you’re never unpermitted on a repair that matters. Give us a call at (844) 660-6510 and describe what you’re seeing.
A Gelco top-mount damper that won’t seat fully is usually repairable if the cable and spring assembly are intact and only the pivot points are corroded. If the damper plate itself is warped or the seal is degraded, replacement is the better long-term move. On Lombard ranches that burn daily through winter, we lean toward replacement with a properly matched unit rather than patching a damper that’s already seen years of hard use. We’ll show you the condition on camera and let you decide.
For daily or near-daily burning through Lombard’s October-to-April heating season, an annual sweep before the first fall fire is the minimum. Homes with original clay tile liners behind Gelco caps often need a mid-season check too, because glaze creosote builds faster on cracked or spalled tile than on smooth stainless. If you burn mostly gas logs, every two years is usually sufficient, but the cap still needs an annual look because leaves don’t care what you burn.
Sometimes. If the cap frame is sound, a replacement screen can be fitted directly. If the mounting hardware is rusted through or the cap body is warped, a full cap replacement is the safer repair because a screen alone won’t stop water intrusion. We stock both options for Gelco-compatible units, so the fix usually happens the same day. Call (844) 660-6510 for a free estimate.
Service Areas Near Lombard
Our Gelco service area covers Lombard and the surrounding suburbs, including Glen Ellyn, Villa Park, Oakbrook Terrace, Addison, and Wheaton. We also provide Gelco service in Wheaton and Gelco service in Elmhurst for homeowners in those adjacent communities. If you’re nearby and not sure whether we cover your street, call (844) 660-6510.
Book Your Gelco Service in Lombard Today
If you’re seeing smoke, noticing a draft that’s not right, or you haven’t had your Gelco cap and flue inspected in years, we’ll come out, put a camera in the flue, and tell you exactly what’s going on. Tell me what you’re seeing, and I’ll tell you what it actually means. Call (844) 660-6510 to book your free estimate in Lombard.
Written by Rob Szymanowski, Owner at Duke Chimney Sweep, serving Lombard and the surrounding communities.