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 Lisle, IL | Summit Peak Chimney Sweep
Summit Peak Chimney Sweep provides independent Gelco chimney cleaning, inspection, and component service throughout Lisle, IL. We’re not authorized by Gelco, and we won’t pretend otherwise, but we’ve worked on their caps, dampers, and inserts long enough to know exactly how they fail in Lisle’s 1960s-1980s housing stock. Call (855) 382-3714 to schedule a free estimate, and we’ll tell you plainly what your Gelco components need and what they don’t.
Why Lisle Residents Choose Us for Gelco Service
Gelco products show up on a lot of Lisle chimneys because they were spec’d by builders and retrofit contractors for decades. That means we see the same failure patterns repeatedly: top-mount dampers that seize after a few freeze-thaw winters, caps with corroded flashing, multi-flue units that never fit quite right. Norm Bledsoe, our owner, has spent the better part of two decades working chimneys across the southwest suburbs, and he’s built our approach around diagnosis first. When we show up to a Lisle home, we’re looking at the whole venting system, not just the Gelco component that prompted the call. Our Gelco sales & service work is grounded in what we see on actual roofs in this area.
Styles & brands we work with
Common Gelco Chimney Cleaning Problems We Solve in Lisle
- Seized top-mount dampers. Gelco dampers are solid units, but years of Lisle freeze-thaw cycles work moisture into the mechanism. The cable or lever binds, and suddenly the damper won’t close. We repair these in place when the hardware is salvageable, and we’ll tell you when replacement is the honest call.
- Corroded cap flashing. Gelco caps do their job until the flashing fails. In Lisle, where snow sits on roof lines and melts and refreezes for weeks, that flashing is a common point of water intrusion. You’ll see staining on the ceiling or a musty smell near the fireplace before you see the cap problem itself.
- Downdrafts from undersized multi-flue caps. Older Lisle colonials frequently have two flues sharing one chase. If a Gelco multi-flue cap was sized for the chase but not the actual flue dimensions, you get backdrafting on windy days. We measure the flues, not just the chase opening.
- Spalling hidden behind a gas log retrofit. This is the one we catch all the time in Lisle’s downtown subdivisions. The original clay flue gets retrofitted with gas logs, the homeowner stops thinking about the chimney, and the flue quietly deteriorates. A camera inspection tells the full story.
- Thermal shock cracks in custom caps. Gelco custom caps are built to order, but Lisle’s winter temperature swings are hard on any fabricated metal. A cap that looked perfect in September can show hairline cracks by March. We check cap welds and seams as part of every cleaning.
Gelco Service in Lisle: What Local Conditions Mean for Your Equipment
Lisle’s housing stock reads like a map of when fireplaces changed their role. The colonials and split-levels in the Meadows and Oakview subdivisions were built in the 1960s and 1970s with wood-burning fireplaces and clay-tile flues as standard features. Then, as gas log sets became common in the 1990s and 2000s, many of those fireplaces were retrofitted. The result is a pattern we see on Gelco repair in Woodridge and all over Lisle: a top-mount damper or cap that’s working fine, sitting on a flue that’s been venting a gas appliance for twenty years and has developed spalling that nobody’s ever looked at. In the older neighborhoods near downtown specifically, original fireplaces with retrofitted gas logs are the rule, not the exception. A Gelco cap replacement on one of these homes should never happen without a Level 2 camera inspection first. You’d be putting a new component on a compromised flue, and you’d never know it until water or exhaust finds its way through. A clean flue is the whole job, everything else is just finding out why it isn’t. That’s how Norm puts it, and it applies directly to what we see in Lisle.
Gelco Models & Products We Service in Lisle
We service the full Gelco line we encounter on Lisle roofs: multi-flue caps, custom chimney caps, top-mount dampers, and fireplace inserts. Our parts approach is straightforward. When a critical component like a damper or cap needs replacement, we source OEM Gelco parts wherever they’re available. When a high-quality aftermarket equivalent matches or exceeds the original spec, we’ll offer that option and explain the difference honestly. We keep common dampers and cap components in our stock so most Lisle jobs don’t wait on a parts order. Repair versus replacement is always a conversation we have before doing the work, never after.
See the difference
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AfterGelco Service Pricing in Lisle
Gelco chimney cleaning and component service in Lisle starts with a Level 1 inspection included in the sweep, which typically runs $179-$249 depending on the chimney’s condition and accessibility. If we’re doing a Level 2 camera inspection, expect $249-$349 for the added scope. Gelco top-mount damper replacement runs $450-$850 installed, while multi-flue and custom cap replacement falls in the $600-$1,400 range depending on sizing and fabrication. Our free estimates cover the inspection and a written quote before any work begins, so you’ll know the number before you commit. Call (855) 382-3714 for pricing specific to your chimney.
Serving Lisle, IL — Our Local Coverage Area
We’re based in the Lisle area and also handle Gelco service in Downers Grove, 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 Lisle
Most stuck-open Gelco dampers can be repaired if the issue is the cable, handle, or linkage, and we’ll attempt that repair first. If the damper body itself has rusted through or warped from freeze-thaw cycling, replacement is the cost-effective choice. We’ll show you the failed part before recommending anything. Call (855) 382-3714 and we’ll assess it on site.
The right Gelco cap covers the flue opening with a mesh skirt sized to your actual flue dimensions, not the chase or the old cap that was there before. We measure every flue when we quote a cap, because an undersized cap on a Lisle colonial with two flues is the most common cause of the downdrafts we’re called to fix.
Yes, when installed correctly and sized properly, Gelco caps hold up to Lisle winters. The failures we see are almost always flashing or install-related, not the cap itself failing structurally, though fabricated caps can develop seam cracks after enough thermal cycling. We check those seams during annual cleanings so a small crack doesn’t become a leak.
You can, but not without addressing the spalling first or at least understanding its severity. Installing a new cap on a deteriorating flue is a short-term fix that hides the real problem. A Level 2 camera inspection tells us whether the spalling is cosmetic or structural. In some cases we’ll recommend a HeatShield resurfacing before the new cap goes on; in others, minor spalling just gets documented and monitored. We’ll show you the camera footage so you can see exactly what we’re seeing.
A multi-flue cap covers the entire chase opening and works when the chase dimensions match the flue layout. A custom cap is fabricated to your specific flue measurements and is the better choice for older Lisle chimneys with irregular flue spacing, similar to what we address with Gelco repair in Hinsdale. Custom caps cost more, but they seal tighter and eliminate the downdraft issues undersized multi-flue units cause. For an exact recommendation and quote, call (855) 382-3714.
Service Areas Near Lisle
We serve Lisle and the surrounding southwest suburbs, including Lisle service area coverage, plus Gelco service in Naperville for the bigger newer builds, and Gelco service in Lockport for older split-levels and ranches with similar vintage flues. Bolingbrook, Woodridge, Romeoville, Lemont, and Darien are all in our regular rotation.
Book Your Gelco Service in Lisle Today
If your Gelco cap, damper, or fireplace insert needs attention, call (855) 382-3714. We’ll set up a free estimate, inspect the whole system, and tell you exactly what needs doing and what can wait.
Written by Norm Bledsoe, Owner at Summit Peak Chimney Sweep, serving Lisle and the surrounding communities.