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.
HeatShield Chimney Cleaning in Logan Square, IL | Sandstone Chimney Sweep
We provide independent HeatShield chimney cleaning and relining service across Logan Square, and the one thing that separates our work here is that we actually know the stacks we’re working on. The century-old greystones and brick two-flats that define this neighborhood were built with clay tile flues or no flue liner at all, so HeatShield service in Logan Square is less about routine cleaning and more about assessing what a hundred years of coal then gas has done to the masonry behind the liner. It’s a different job than the suburbs. Call (833) 589-7835 to schedule a camera inspection and we’ll show you exactly what you’re working with.
Why Logan Square Residents Choose Us for HeatShield Service
We’re an independent HeatShield service provider, not a manufacturer shop, so our recommendation is based on what your flue actually needs rather than what a product line wants to sell. We’ve poured and cured HeatShield’s ceramic-silicate liners into the dense rows of 1880s-to-1920s brick stacks that run along Milwaukee, Logan Boulevard, and the side streets in between, and we size the product to the flue geometry we find, not to a one-size cast-in-place formula. Norm Sobieski grew up in Albany Park, went through the HVAC and building systems program at Truman College, and has spent years working residential chimneys across Chicago’s northwest side. He’s known for being straight with people. If a liner is sound, we’ll tell you. If it isn’t, we’ll show you the camera footage so you can see it for yourself.
Styles & brands we work with
Common HeatShield Chimney Cleaning Problems We Solve in Logan Square
- Cracked clay tile pulling away from a HeatShield liner at the annular joint. We see this constantly in Logan Square two-flats where the original clay tile was re-fired decades ago and the joints have shifted. The cold seam that results lets flue gases and moisture work into the soft brick behind the liner, and Chicago’s freeze-thaw cycles do the rest. We repair the joint with HeatShield’s own materials and seal the seam properly so it doesn’t reopen next winter.
- HeatShield delamination on unlined 1890s brick stacks. When a chimney was built with no clay tile at all, the wet cast mix cures unevenly against bare brick in an unheated space. Hairline cracks form, then widen. We see this on the oldest greystones in Logan Square where the chimney has never been relined since the house was built. The fix is a careful re-cast with proper curing control, not a surface patch.
- Crown and cap failures letting lake-effect snowmelt onto a cast liner. Logan Square gets heavy snow, then a thaw, then a hard freeze. That cycle wrecks the soft original mortar crowns on these old chimneys, and once water gets past the crown it pools on top of the HeatShield liner and cracks the top section. We rebuild crowns and install proper multi-flue caps so the roofline actually seals.
- Upstairs-flue-only HeatShield installs on shared stacks. This is the Logan Square classic. A landlord relines the upstairs furnace flue and leaves the downstairs clay tile bare. Both systems still cross-leak because they share the same masonry stack. We see this on two-flats all over the neighborhood, and it takes a camera inspection to confirm it’s happening before it becomes a carbon monoxide problem.
- Gut-rehab flues that were never updated for a new furnace. When a Logan Square two-flat gets converted to condos and a new high-efficiency furnace is dropped in, the old coal flue often stays. Condensing furnaces need different venting than coal boilers, and a HeatShield liner sized for the wrong appliance creates problems. We catch this mid-renovation all the time along the Milwaukee Avenue corridor.
HeatShield Service in Logan Square: What Local Conditions Mean for Your Equipment
Here’s the detail that shapes almost every HeatShield job we do in Logan Square: the neighborhood’s housing stock is dominated by two- and three-flat greystones and brick workers’ cottages built between 1880 and 1920, many still with their original unlined or clay-tile-lined chimneys serving now-retired coal flues. These buildings sit on narrow 25-foot lots with shared party walls and rear gangways, so the chimney is typically at the shared wall between units. That means a single apparent chimney often contains two separate flues, one for each unit’s furnace or water heater, running inside one masonry stack. On a Logan Square two-flat, we routinely find the upstairs flue already relined while the downstairs one is still bare clay tile, cracked the length of the stack behind the party wall. A HeatShield job here isn’t just cleaning; it’s deciding whether to cast one flue or both, and the answer depends on which unit is being gut-rehabbed next. You can’t make that call without seeing inside the stack, which is why we camera every inspection.
HeatShield Models & Products We Service in Logan Square
We work with the full HeatShield product line: the Ceramic-Silicate Cast-in-Place Liner, the HeatShield Armor top-seal system, and HeatShield chimney relining for gas and oil venting on furnace and water-heater flues. We carry HeatShield’s own cast-in-place materials and the mixing and curing equipment to apply them properly, and we use HeatShield components rather than aftermarket substitutes when the liner itself is the problem. When an existing HeatShield liner is still sound, we repair the crown, cap, and flashing around it instead of casting a new liner just to sell the job. That’s the honest distinction: we make a Materials-matched repair call based on what the flue actually needs, not what’s easier to bill. If you want to see the HeatShield products and understand how they work, see our HeatShield sales & service page for the fuller breakdown.
See the difference
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AfterHeatShield Service Pricing in Logan Square
What you’ll pay depends on what the camera finds. A HeatShield chimney cleaning and inspection in Logan Square typically runs $180 to $340, and that includes the full camera look at the flue so you can see the condition yourself. If the liner needs repair, crown rebuilding, or a new cast-in-place liner, the cost goes up based on flue height, access difficulty (those rear gangways are tight), and whether we’re casting one flue or two on a shared stack. A free estimate means we come out, look at the chimney in person, and give you a written number before any work starts. You’ll know the flat price before we book the job. For an exact quote, call (833) 589-7835.
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 – HeatShield Chimney Cleaning in Logan Square
Not always, but you need a camera inspection to know for sure. On a shared stack, we often find one flue already lined and the other still bare clay tile. If both furnaces are venting through the same stack and one flue is unlined, you’ve still got cross-leak potential. The answer depends on what we see inside, which flue is actively used, and whether a gut rehab is coming. Call (833) 589-7835 for a free estimate and we’ll show you the footage before recommending anything.
Yes, provided the wet mix is applied at the right consistency and cured in a controlled way. Greystone stacks with no original tile are actually one of the situations where a cast-in-place ceramic-silicate liner makes the most sense, because there’s no existing clay to bond to and the liner becomes the flue. The key is that it’s done by someone who knows how the product reacts to Chicago’s unheated winter masonry. We cure liners carefully on these older stacks.
A properly installed HeatShield liner will hold up to the freeze-thaw cycles that wreck Logan Square’s original soft brick. The vulnerability is almost always at the crown and cap, where lake-effect snowmelt and ice-dam water get onto the top of the liner. If the crown is deteriorating, a new liner alone won’t fix the problem. We rebuild crowns and install multi-flue caps so the roofline seals, then the liner does its job below. Call (833) 589-7835 if you’re seeing moisture or staining near your chimney.
Very likely, unless the flue was relined during the rehab. Many Logan Square gut-rehab projects along Milwaukee and Logan Boulevard replace the furnace and water heater but leave the original coal-era flue in place. That’s a problem, because the venting requirements for a condensing furnace are different from old coal boilers. We catch this regularly during renovation scopes. A camera inspection tells you what you’re actually venting through. Call (833) 589-7835 for a free estimate.
Yes, we do it regularly. Rear gangways are tight, but we stage what we need and work the stack from the roof or the gangway as conditions allow. We’ve handled greystone party-wall chimneys on lots all over Logan Square, including one recently off Logan Boulevard where we found the upstairs furnace flue already cast-lined, the downstairs flue still bare clay tile cracked the length of the stack, and a deteriorating crown. We pulled the flue, rebuilt the crown, cast a HeatShield liner into the lower flue, and capped the shared stack with a multi-flue cap. Two systems finally venting independently. For a party-wall chimney, call (833) 589-7835 and describe the access. We’ll tell you straight what it’ll take.
Service Areas Near Logan Square
We serve Logan Square and the surrounding neighborhoods: Near North Side, Lincoln Park, West Town, Near South Side, and the Chicago Loop. If you’re in a neighboring area, see our Logan Square service area page to confirm coverage, or check our HeatShield service in East Garfield Park and HeatShield service in Bridgeport pages for nearby work. Sandstone Chimney Sweep covers the north and northwest neighborhoods where these old stacks dominate.
Book Your HeatShield Service in Logan Square Today
We’re the independent HeatShield service provider that actually knows Logan Square’s century-old two- and three-flat chimneys. Whether it’s one flue or two, a bare clay stack or a failing liner, we’ll show you the footage and give you a straight answer. Call (833) 589-7835 for a free estimate, and we’ll schedule the inspection. A clean flue isn’t a luxury – it’s just what a working fireplace requires.
Written by Norm Sobieski, Owner at Sandstone Chimney Sweep, serving Logan Square with HeatShield service.