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.
DuraFlex Chimney Cleaning in North Center, IL | Crossroads Chimney Sweep
We provide independent DuraFlex chimney cleaning, inspection, and DuraFlex repair in Lincoln Park and throughout North Center, including the two-flats and greystones along Lincoln Avenue and the side streets off Irving Park Road. The one thing that makes our DuraFlex work different here is this: in North Center, one chimney often carries flues for a basement boiler and an upstairs fireplace, so a DuraFlex liner gets worked harder than it does in a single-flue suburban house. Call (877) 265-6720 for a free estimate on DuraFlex service in North Center.
We’re Crossroads Chimney Sweep, and we stock and install DuraFlex flexible liner components alongside HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield materials. If you own a brick two-flat in North Center and your chimney hasn’t been looked at in a few years, we can tell you exactly what shape the DuraFlex liner is in, and whether it needs a sweep or something more.
Why North Center Residents Choose Us for DuraFlex Service
Norm Szczepanski, our owner, grew up on the northwest side of Chicago a few blocks from Kosciuszko Park and has been working chimneys in Belmont Cragin and the surrounding neighborhoods for going on two decades. He picked up the trade through the building trades programs at Triton College in River Grove, then spent years on everything from century-old brick fireboxes to modern zero-clearance inserts. When we pull up to a North Center greystone, we’re not learning on your chimney.
That matters when a customer asks us to service a DuraFlex liner. We handle DuraFlex flexible stainless liner systems, Insulated Pro relines, and the tee and cap assemblies that come with them on a weekly basis. Not as a sideline. As the job. We’re an independent chimney service, not a manufacturer-authorized or factory-sponsored installer, and we’ll tell you plainly when a DuraFlex liner is sound and when it’s done. No one here works on commission for a liner manufacturer. DuraFlex sales & service work is central to what we do, but our loyalty is to the homeowner.
If you need a sweep, a Level 2 inspection, or a repair on your DuraFlex system, our techs show up with OEM-compatible DuraFlex parts and the tooling to fit them properly. We bring industry-grade materials to your door, not whatever was on the truck from last week’s job.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in North Center
Here’s what we actually find when we get called out for DuraFlex service in North Center’s old masonry chimneys.
- Tee snout and bottom-cap joints pulling loose. In a two-flat where the DuraFlex liner drops down to the basement boiler, the tee snout at the bottom takes the brunt of acidic condensate and thermal cycling. North Center’s hot summers and cold winters expand and contract that joint every year until it loosens or corrodes. When that seal fails, flue gas and condensate leak into the masonry chase instead of going up and out.
- Stainless liner pitting from acidic creosote condensate. Chicago’s humid summer months plus intermittent fires in the shoulder seasons produce a sticky, acidic creosote that clings to the liner walls. On an undersized or cracked clay tile flue that was relined with DuraFlex, that condensate sits and eats at the stainless. We find pitted liner sections in North Center chimneys that look fine from the top but are thin as paper in the middle.
- Top-plate and cap assemblies loosening after freeze-thaw. Hard Chicago winters with repeated freeze-thaw cycles are rough on mortar crowns. When a DuraFlex top plate or multi-flue cap was installed on an already spalling crown, the freeze-thaw works the assembly loose. Meltwater runs down between the liner and the chimney wall, and the crown spalls further. It’s a cycle that doesn’t stop on its own.
- Sagging or misaligned flexible liner sections at tight bends. North Center has a lot of rear additions and enclosed porches that left chimneys boxed in or shortened. When a DuraFlex flexible liner was pulled through a tight offset in one of those shorter chimneys, it can sag or kink. Drafting suffers, and the offset becomes a creosote trap that’s hard to reach with standard brushes.
- Multi-appliance flue confusion. A single North Center chimney often carries a boiler flue for one unit and a fireplace flue for another. We regularly find homeowners who don’t know which flue goes where, or whether the DuraFlex liner was even installed on the correct one. A Level 2 inspection sorts that out.
DuraFlex Service in North Center: What Local Conditions Mean for Your Equipment
If there’s one thing that defines DuraFlex repair in Avondale and chimney work in North Center, it’s this: a single DuraFlex-relined masonry chimney commonly serves the basement boiler flue for one unit and a fireplace or furnace flue for the other. That’s the reality of the 1890 to 1930 brick two-flats and greystones along Lincoln Avenue and the streets off Irving Park Road. What looks like a routine sweep on paper often turns into a Level 2 inspection of one shared stack with multiple appliances tied into it.
Here’s what that means for a DuraFlex owner specifically. The liner below the boiler’s tee snout sees constant low-temperature exhaust and acidic condensate. The liner above the fireplace sees high-heat wood smoke and creosote. Same chimney, two very different wear profiles. A tech who only looks at the top of the flue misses the pitting at the bottom. A tech who only sweeps the fireplace flue leaves the boiler flue untouched, which means the shared chimney is still a draft hazard even after a “successful” cleaning. In North Center, DuraFlex service in Albany Park and here has to account for the full stack, not just one appliance.
On a Lincoln Avenue greystone a while back, our tech found a DuraFlex flexible liner serving the basement boiler of the first-floor unit and a second flue for the upstairs fireplace. The tee snout was corroded and creosote had hardened in the offset below the top plate. We swept both flues, resealed and re-set the tee and top plate, and documented the pitted liner section so the owner could decide on a reline before the October heat season rather than after a draft failure. That’s the kind of two-flat chimney we see all over North Center.
DuraFlex Models & Products We Service in North Center
We work on the DuraFlex Pro flexible stainless liner kits that reline masonry flues, including the Insulated Pro systems where the flue needs the extra thermal protection. We service standard DuraFlex stainless flexible liner installations with tee and cap kits, and we fit DuraFlex top-plate and multi-flue cap assemblies on masonry chimneys. When we quote a repair, we use genuine DuraFlex liner, tee, top-plate, and cap components wherever the existing system is sound. Mixing brands on a flexible reline invites fit and seal failures at the tee and top plate, so we don’t do it.
Where a DuraFlex liner is cracked, pitted through, or was never insulated properly, we say so and quote replacement rather than patching it. That’s the honest call, and it’s the call we’d want if it were our building. We stock common DuraFlex components for fast turnaround on North Center jobs.
See the difference
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AfterDuraFlex Service Pricing in North Center
Chimney sweeping in North Center typically runs $180 to $340 for a standard wood-burning fireplace flue. A Level 2 inspection, which we recommend for any two-flat with shared flues, adds $150 to $300 depending on what we’re checking. Creosote removal for heavy buildup or a DuraFlex liner in a two-flat chimney ranges $300 to $600. Multi-flue cap supply and installation on a masonry chimney runs $350 to $800. If a liner inspection finds pitting or corrosion, a full DuraFlex reline typically lands between $2,500 and $6,000 in this area. These are straight estimates, not a hard quote. What drives the price is access, the condition of the existing flue, and whether the liner is still serviceable. Every estimate is free. Call (877) 265-6720 and we’ll walk the chimney with you and tell you what you’re actually dealing with.
Serving North Center, IL — Our Local Coverage Area
We’re based in the North Center 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 – DuraFlex Chimney Cleaning in North Center
Yes. That’s the standard job in North Center. We sweep both flues in the same visit, and because a shared stack means a shared set of problems, we usually recommend a Level 2 inspection at the same time so you can see what condition each liner is in. Call (877) 265-6720 to schedule.
The only way to know is to look at it with a camera. We run a Level 2 inspection on the liner from top to bottom and document what we find with photos. Minor pitting can sometimes wait. A cracked or pitted-through section can’t, especially before the October heat season puts the boiler back online. We’ll show you the footage and let you decide. Call (877) 265-6720 for an inspection.
Yes, it can. A spalling crown lets meltwater run down between the DuraFlex liner and the masonry wall. That water freezes and thaws, opening the crack wider and putting pressure on the top plate and cap assembly. The liner itself may still be fine, but the crown needs attention before the freeze-thaw cycle damages the whole system. We can assess both in one visit. Call (877) 265-6720.
Loose caps on North Center chimneys usually come down to two things: freeze-thaw working the fasteners loose, or the top plate sitting on a crown that’s already crumbling. Tightening the cap without fixing the crown buys you a season at most. We inspect the crown and the top plate together, then reseal and re-set so the cap stays put. Call (877) 265-6720 for a proper fix.
We do. Many North Center two-flats converted to gas inserts over the years, and the DuraFlex liner installation is often from a previous owner with unknown history. We inspect, sweep, and test the liner, and we’ll tell you if it’s rated for gas use or if it was set up for wood and never changed over. It’s a common question we hear in the neighborhood. Call (877) 265-6720 and we’ll take a look.
Service Areas Near North Center
We serve the neighborhoods and suburbs around North Center, including Belmont Cragin, Portage Park, Irving Park, Avondale, and Elmwood Park. If you’re just outside the neighborhood, North Center service area work often reaches you, and our crews regularly handle DuraFlex service in East Garfield Park and DuraFlex service in Franklin Park for customers who want the same DuraFlex expertise on their side of the city.
Book Your DuraFlex Service in North Center Today
If your North Center chimney hasn’t been swept or inspected in the last couple of years, now is the time to get it done before the burning season. Call (877) 265-6720 for a free estimate. We’ll bring the right DuraFlex materials, tell you the truth about your liner, and leave the flue the way it’s supposed to work. A clean flue isn’t a luxury – it’s just how the thing is supposed to work.
Written by Norm Szczepanski, Owner at Crossroads Chimney Sweep.