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 Logan Square, IL | Crossroads Chimney Sweep
We provide independent DuraFlex chimney cleaning and repair across Logan Square, ZIP code 60647. What separates our DuraFlex work in this neighborhood is that we routinely assess liner integrity on century-old greystone two-flats where the original clay tile was relined years ago without addressing the freeze-thaw damage happening above it. Call (877) 265-6720 and we’ll come out, inspect what’s actually in your flue, and tell you straight what it needs.
Our team knows DuraFlex liners from installation to failure patterns because we’ve serviced them in hundreds of Logan Square chimneys. We’re not a manufacturer affiliate. We’re DuraFlex sales & service specialists who stock what these systems actually require. For a full picture of where we work, see our Logan Square service area.
Why Logan Square Residents Choose Us for DuraFlex Service
Most chimney companies in this part of Chicago can sweep a flue. Fewer can tell you whether the DuraFlex liner inside that flue is still sound, and fewer still carry the OEM components to fix it on the spot. That’s the gap we fill for Logan Square homeowners. When a 1910 greystone on Palmer Square has a corroded liner-to-cap connection, we don’t have to order parts and reschedule. We bring them.
Norm Szczepanski grew up a few blocks from Kosciuszko Park, learned the trade through Triton College’s building trades program, and has spent nearly two decades working chimneys from Belmont Cragin through Logan Square. His dad was a bricklayer, so masonry and flue work were part of the dinner-table conversation long before he ever set foot on a roof. That background matters when a chimney crown is failing and the liner below it is starting to rust. We don’t just clean. We look at the whole system and tell you what’s holding up and what isn’t.
Styles & brands we work with
Common DuraFlex Chimney Cleaning Problems We Solve in Logan Square
- Corrosion at the liner-to-cap connection. Chicago’s freeze-thaw winters put enormous stress on chimney caps. Water gets under the cap edge, freezes, expands, and cracks the seal. Over five to ten winters, the top joint of a DuraFlex liner starts to rust. We see this constantly in Logan Square, especially on the tall brick stacks of the boulevard greystones.
- Creosote accumulation in retrofitted liners. Many Logan Square two-flats had furnaces upgraded decades ago without lining improvements. A DuraFlex liner may have been installed, but if the insulation wasn’t done right, creosote condenses faster inside. Heavy wood burning during the long heating season makes it worse.
- Liner joint separation in original clay-tile flues. When a DuraFlex liner goes into an old clay-tile chimney where the mortar joints were already deteriorating, the liner can shift. On shared party-wall flues between adjacent units, that separation can cause smoke backdraft from one neighbor’s fireplace into the other’s living room. It’s a code issue we check for on every Logan Square job.
- Damper and cap damage from thermal stress. The temperature swings in an old single-wythe brick chimney put constant strain on dampers. When a damper fails, water enters and accelerates liner degradation further down. It’s a compounding failure we stop early when possible.
- Spalling brick around the crown. Original brick from the 1880s to 1920s doesn’t handle decades of moisture absorption well. When the crown starts spalling, brick fragments can fall into the flue and damage the DuraFlex liner surface. We inspect for this on every Logan Square cleaning call.
DuraFlex Service in Logan Square: What Local Conditions Mean for Your Equipment
Here’s something that makes Logan Square different from every neighborhood around it. This is a designated Chicago Landmark district, specifically along the Logan Square Boulevards. If you own a greystone or brick two-flat on Logan Boulevard or Kedzie and you need a chimney cap replaced or a crown repaired, the work is visible from the street. That means landmark-commission review may be required before we can change anything on the exterior. Avondale and Hermosa don’t have this hurdle, or at least not on the same scale. For a DuraFlex owner in Logan Square, this changes the timeline. A cap replacement that takes one visit in Irving Park might take an extra week or two here while paperwork moves through the commission. We handle that documentation for you and plan the job around it, but it’s exactly the kind of local detail a generic chimney company from outside the neighborhood misses until the inspector shows up.
On Logan Boulevard, we recently serviced a DuraFlex Pro liner in a 1910 greystone two-flat where the original clay flue had been relined years ago. The freeze-thaw cycles had cracked the crown, allowing water to corrode the liner’s top joint and cause smoke backdraft into the upstairs unit. We replaced the cap with a custom multi-flue model, applied crown coating, and sealed the joint, restoring safe operation for both units. That job required landmark review because the cap was visible from the boulevard. It added time, but the alternative was another winter of water getting in.
DuraFlex Models & Products We Service in Logan Square
We work on the full DuraFlex lineup common in this area: DuraFlex Pro, DuraFlex SW, DuraFlex Insulated, and the DuraFlex Reline Kit. On most Logan Square jobs we use OEM DuraFlex components for critical connections and caps. Fit and safety aren’t negotiable on those parts. For non-structural elements like dampers, we’ll use quality aftermarket options when they meet our durability standard. The repair-versus-replace call is straightforward: localized corrosion with an otherwise sound liner gets repaired. Joint separation or widespread rust gets a replacement recommendation. We don’t upsell liner work here. A clean flue isn’t a luxury – it’s just how the thing is supposed to work.
See the difference
Before
After
Before
After
Before
AfterDuraFlex Service Pricing in Logan Square
DuraFlex chimney cleaning in Logan Square typically runs $180 to $340 for a standard sweep. The range depends on flue length, creosote stage, and whether we’re also doing a Level 2 camera inspection. Cap replacement on DuraFlex systems generally adds $250 to $500 for the part and labor, though landmark-visible work in the boulevard district can require permit fees and review time that affect the final quote. The estimate call is free and tells you exactly what you’re looking at before we book anything. Call (877) 265-6720 and Norm or one of our techs will walk you through it.
Serving Logan Square, IL — Our Local Coverage Area
We’re based in the Logan Square 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 Logan Square
In a shared party-wall flue, each unit’s liner runs inside the same brick chase, so a separated DuraFlex joint in one unit can let smoke backdraft into the adjacent unit’s living space. We specifically check for cross-connection on every Logan Square two-flat because the housing stock here makes it a real risk. If you’ve noticed a neighbor’s smoke smell in your unit, that’s the first thing we test.
Widespread rust along the liner’s length, separation at the joints, or flue gas smell in living spaces all point toward replacement. Localized rust at the top joint or cap connection can often be repaired. The only way to know for sure is a camera inspection, which we can do on the same visit as a cleaning. Call (877) 265-6720 and we’ll show you the footage ourselves so you can see what we’re seeing.
Yes, when the chimney is visible from the street on the designated boulevards, cap or crown replacements can require landmark-commission review. That adds time and documentation to the job. We handle the paperwork and build the review time into the schedule so there are no surprises mid-project.
Unlined or single-wythe brick chimneys absorb water all winter. When that water freezes, the mortar joints crack wider. A DuraFlex liner installed without proper insulation in that environment cools too quickly, condensing creosote faster and stressing the liner joints. The freeze-thaw cycle in Logan Square is brutal on these systems, and it’s the number one reason we recommend a Level 2 inspection if your liner is more than ten years old.
Yes. DuraFlex stainless liners are designed for mechanical cleaning with poly brushes. We use the right brush diameter for the liner size, and we don’t use steel brushes on stainless. The process removes creosote without scarring the liner surface, which is what keeps it corrosion-resistant. We’ll tell you after the sweep if we found anything that changes that picture. For a full estimate, call (877) 265-6720.
Service Areas Near Logan Square
We also provide DuraFlex service in nearby Belmont Cragin, Portage Park, Elmwood Park, Irving Park, Avondale, and Harwood Heights. If you’re just outside 60647, see our DuraFlex service in Norridge or our DuraFlex service in West Garfield Park pages for coverage details.
Book Your DuraFlex Service in Logan Square Today
We’re independent DuraFlex professionals serving Logan Square, and we’ll tell you plainly what your chimney needs. Call (877) 265-6720 to schedule a cleaning, inspection, or liner assessment. Free estimates, no pressure.
Written by Norm Szczepanski, Owner at Crossroads Chimney Sweep, serving Logan Square and the northwest side of Chicago.