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 Avondale, IL | Brightway Chimney Sweep
We provide independent Gelco chimney cleaning and repair across Avondale’s 60618 ZIP, working on the dense brick two-flats and workers’ cottages that make this neighborhood’s flue work different from anywhere else in Chicago. What sets our Gelco service apart here is simple: most Avondale chimneys with Gelco caps and liners aren’t venting fireplaces at all. They’re carrying exhaust from furnaces and water heaters in two-unit buildings, so a cleaning has to include a real inspection of shared flues, liner sizing, and masonry condition. If your Gelco equipment needs attention, call (833) 365-6591 for a free estimate.
Why Avondale Residents Choose Us for Gelco Service
We handle Gelco sales & service work the way Avondale’s housing actually demands. Our crew has swept, relined, and rebuilt Gelco-equipped chimneys on these blocks for years, and Neil Borowski, our owner, grew up a few blocks from Eckhart Park in West Town. He’s spent the better part of three decades working on the same kind of greystones and two-flats that line Belmont, Milwaukee, and Diversey. That local familiarity matters when a chimney stack serving two units needs a shared-vent safety check, not just a quick sweep.
We’re an independent sweep service. That means we work on Gelco equipment daily but have no affiliation with or authorization from the manufacturer. Our independence works in your favor: we recommend what the chimney actually needs, whether that’s a genuine Gelco replacement part or a straightforward cleaning. No quotas, no manufacturer incentives, no pressure.
Owners call us after bad experiences with companies that clean the flue but never look at the cap, the crown, or the liner. A cleaning that ignores those components on an Avondale two-flat is half a job. We do the full job.
Styles & brands we work with
Common Gelco Chimney Cleaning Problems We Solve in Avondale
- Insulated Gelco liners sized for older furnaces that no longer match the current load. In converted Avondale buildings, the original clay-tile flue often got a Gelco liner years ago, but then the furnace or water heater was swapped for a higher-efficiency or higher-BTU unit. The liner that worked fine for the old equipment is now undersized. The result is poor draft, condensation inside the liner, and combustion gases that spill back into the living space instead of venting out. We identify this during cleaning and give you a straight answer about whether the liner needs replacement.
- Gelco cap screens and top plates corroding on exposed stacks. Avondale’s brick two-flats sit shoulder to shoulder, but the chimney stacks rise above the roofline and take the full force of Chicago weather. Freeze-thaw cycles split the brick, and the Gelco cap on top takes rain, snow, and ice directly. We routinely find cap screens rusted through or dented, letting rain and birds into flues that already have open mortar joints from years of water intrusion.
- Gelco damper assemblies seizing or dropping out of alignment. Fireplaces in Avondale’s older homes often have original dampers that were upgraded with Gelco top-mount or clamp-on assemblies. After years of soot buildup and the same freeze-thaw moisture that attacks the masonry, the damper mechanism binds up or the cable pulls loose. The result is a damper that won’t seal, so heated air escapes up the chimney all winter long.
- Liner-to-flue-top terminations loosening where the crown has spalled. This is a classic Avondale failure: the unparged brick crown crumbles under freeze-thaw pressure, and the cap and flashing that were once level now sit tilted. The Gelco liner’s termination at the top loosens, water gets behind it, and the whole assembly needs to be reseated properly after crown repair.
- Multiple flues in one stack serving separate units, with different levels of neglect. One Avondale chimney often has two or three flues side by side, one for each unit’s furnace and water heater. One tenant uses the fireplace, the other doesn’t. One flue gets swept and checked, the adjacent one gets ignored. We clean and inspect each flue independently and report what we find for each one, not just the one that prompted the call.
Gelco Service in Avondale: What Local Conditions Mean for Your Equipment
Here’s what we see on Avondale’s dense two-flat blocks more than anywhere else we work: a single Gelco-capped stack frequently vents both units’ furnaces and water heaters, so what starts as a routine sweep often becomes a shared-vent safety check across two floors. A chimney built in 1905 was never designed to carry the exhaust load of two modern gas furnaces and two water heaters, even with a stainless liner added later. The combined BTU output exceeds what the original flue dimensions can handle, and that’s when combustion gas starts backing up into the basement or a bedroom. Once one flue fails inspection, neighbors on the same block tend to book together. We’ve worked blocks off West Belmont where three two-flats in a row had the same issue, discovered one after another. On one two-flat block off West Belmont in the 60618 ZIP, we opened a Gelco-capped stack serving both units’ furnaces and found the shared flue undersized for the combined load with a corroded cap screen letting meltwater in. We reseated a new Gelco multi-flue cap level over a freshly parged crown, cleaned both flues, and flagged the liner sizing for replacement. The upstairs owner booked a Level 2 the same week after a neighbor’s referral. That’s how word travels on these blocks.
Gelco Models & Products We Service in Avondale
We service the full range of Gelco chimney equipment common in Avondale homes:
- Gelco stainless steel flexible chimney liner kits, both single-wall and insulated, used in furnace and water heater venting retrofits.
- Gelco multi-flue chimney caps and single-flue caps, including the wide multi-flue versions that cover Avondale’s double and triple stacks.
- Gelco top-mount and clamp-on damper assemblies, found on older fireplaces that were retrofitted for better sealing.
- Gelco fireplace inserts and wood-burning stove flue components, common in Avondale’s rehabbed workers’ cottages.
Our parts approach is straightforward. We stock genuine Gelco caps, dampers, and liner components where fit and code matter, and we use quality aftermarket stainless and hardware for cosmetic or non-critical pieces. When a Gelco liner is sound, we clean and reseat it. When it’s undersized or corroded through, we tell you plainly and quote a replacement rather than patching it. That’s the only way to handle a venting system somebody’s family depends on.
See the difference
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After
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After
Before
AfterGelco Service Pricing in Avondale
Gelco chimney cleaning in Avondale typically runs between $180 and $340, depending on the number of flues, the condition of the cap and crown, and whether the chimney serves one unit or two. A single-flue cleaning on a standard workers’ cottage tends toward the lower end. A two-flue stack on a converted two-flat, with a Gelco multi-flue cap and years of soot buildup, runs higher. Same for jobs where a Level 2 inspection is needed because of a suspected liner issue or draft problem.
What drives the cost here is access and scope. Tight Avondale lots mean ladders and sometimes scaffolding, and a stack serving two units means two flues to clean and inspect, not one. Our free estimate includes a full inspection of the cap, crown, liner, damper, and both flues if you have them. Call (833) 365-6591 and we’ll give you an exact number for your building.
Serving Avondale, IL — Our Local Coverage Area
We’re based in the Avondale 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 Avondale
Yes, and we do it routinely. A single visit covers both flues in the stack, the shared masonry, the Gelco cap, and the liner terminations. We inspect each flue independently, check the combined venting load against the existing liner size, and give you a written report for each unit. Call (833) 365-6591 to schedule.
It might, and the reason has nothing to do with draft. A Gelco cap that’s corroded or dented from freeze-thaw cycles lets rain into the flue, and that rain mixes with soot to form a weak acid that eats at the liner and mortar. The draft can still be fine while the cap is quietly failing above it. If the cap screen is rusted through or the top plate is warped, we recommend replacing it before water damage becomes a liner replacement. Call (833) 365-6591 for an inspection.
The warning signs are specific: condensation dripping from the flue, a sulfur smell near the water heater, furnace flame rollout, or soot staining around the draft hood. In converted Avondale buildings, the original flue was often sized for a coal stove or a much smaller gas furnace, and the Gelco liner added during a renovation matched that old equipment. When newer high-output appliances went in, the liner became the bottleneck. We measure the liner diameter against the combined BTU load and tell you exactly whether it’s sized correctly.
We do both. Crown repair and tuckpointing are part of our chimney repair service, not a separate trade we refer out. When we repair a crown on a Gelco-equipped chimney, we remove the cap, parge the crown level, and reseat the cap properly so the termination is watertight. One contractor, start to finish. Call (833) 365-6591 for a free estimate.
We work on both. Gelco fireplace inserts have their own flue components and damper setups that come with their own failure points, especially in older Avondale homes where the insert was fitted into an original masonry fireplace. We clean insert flues, service Gelco dampers, and repair or replace insert components as needed. If it’s Gelco equipment on a chimney, we service it.
Service Areas Near Avondale
We provide Avondale service area coverage and work throughout the surrounding neighborhoods. For readers just west of here, see our Gelco service in South Lawndale. East toward the lake, see Gelco service in Near South Side. We also cover West Town, East Garfield Park, Logan Square, and Lincoln Park, with the same Gelco-specific expertise and the same straight answers.
Book Your Gelco Service in Avondale Today
If your Gelco-equipped chimney hasn’t been inspected this year, or if you’ve noticed draft problems, moisture, or debris, call (833) 365-6591. We’ll schedule a time that works for you, inspect everything, and tell you exactly what needs doing and what can wait. A clean chimney doesn’t announce itself, and neither does the problem you avoided by having one.
Written by Neil Borowski, Owner at Brightway Chimney Sweep, serving Avondale since our founding.