Fast, Reliable Chimney Cap & Crown Across Logan Square
Chimney cap and crown repair in Logan Square typically runs $280-$780 depending on whether you need a single-flue cap replacement or full crown rebuild on a multi-flue stack. Most jobs are completed same-day. Call (888) 289-6055 for a free estimate.
We’ve been driving to Logan Square since 2014. Our trucks know the diagonal cut of Milwaukee Avenue, the courtyard apartments off Logan Boulevard, and the particular headache of parking a service vehicle on a narrow street like Drake or Spaulding while we haul gear up to a third-floor greystone roof. Logan Square’s housing stock is overwhelmingly greystone and brick two-flats and three-flats built between roughly 1895 and 1925, nearly all with original multi-flue masonry chimneys that were designed for coal-burning furnaces and later retrofitted for gas. These oversized flues create persistent draft problems, accelerated condensation, and glazed creosote buildup when paired with modern high-efficiency gas appliances. It’s a failure mode we see more in Logan Square than anywhere else we serve on the northwest side.
Our Chimney Cap & Crown team carries multi-flue caps, custom sheet-metal fittings, and crown coating materials sized for these pre-WWI stacks. We don’t guess at what your chimney needs. We camera-inspect every flue, show you the photos, and give you a plain-English verdict before any work starts.
Why Hearthstone Chimney Co. of Chicago Is Logan Square’s Preferred Chimney Cap & Crown Company
We’ve worked on chimneys along Kedzie, California, and Western in Logan Square for over four decades. The same families call us back. The same landlords recommend us to the next building owner. That reputation was built one job at a time, not bought with ads.
Our reviews from Logan Square customers mention the same things: we show up when we say, we explain what we found without talking down, and we leave the roof cleaner than we found it. Homeowners in the 60647 zip code specifically note that our technicians took time to identify which flue served which unit in their two-flat, something the last company never bothered to do.
Response time to Logan Square averages under 90 minutes during business hours. When a crown fails in February and water is running down your brickwork, that proximity matters.
We know the local permit landscape. Most cap and crown work in Logan Square doesn’t require a permit, but if your job involves structural masonry repair above the roofline, we handle the paperwork with the City of Chicago directly. You don’t chase permits. We do.
Our Chimney Cap & Crown Services in Logan Square
Cap Installation
New cap installation on a Logan Square greystone typically means fitting a cap to an oversized flue that was never designed for modern venting. We measure the flue opening, check draft with our manometer, and install a cap from Gelco or Famco that won’t choke your appliance or let rain in. Single-flue cap installation in Logan Square runs $280-$420 installed.
Cap Replacement
The caps we remove from Logan Square chimneys are often rusted through in three to five years. Retrofit gas appliances in oversized coal-era flues create acidic condensation that eats through standard galvanized caps fast. We replace them with stainless steel or copper options from Olympia Chimney that handle that environment. Cap replacement on a standard single flue: $320-$480.
Crown Repair
Crown repair is the most common call we get from Logan Square in March, right after the last freeze-thaw cycle has done its damage. Lime mortar crowns on pre-1925 greystones spall and crack after 30+ freeze-thaw cycles in a single winter, letting water into all flues of a shared stack. We grind out the damaged mortar, re-pour with proper slope and drip edge, and seal with HeatShield crown coating. Crown repair runs $450-$680 for a standard two-flue stack.
Crown Coating
For crowns with surface cracking but intact structure, crown coating buys you years. We apply HeatShield or DuraFlex crown sealant after pressure-washing and priming the existing crown. It’s not a substitute for rebuild on a failed crown, but it’s honest work for the right condition. Crown coating in Logan Square: $380-$550.
Multi-Flue Cap
In Logan Square, shared chimney stacks serving multiple units mean that a damaged crown or missing cap on one flue can expose adjacent flues to water infiltration and even combustion gas cross-venting, making multi-flue cap replacement a routine need. A multi-flue cap covers the entire chimney top with one engineered unit, eliminating the gaps between individual caps where water and vermin enter. We size and install multi-flue caps from Olympia Chimney that account for the exact flue spacing on your stack. Multi-flue cap installation in Logan Square: $580-$780.
Custom Cap
Some Logan Square chimneys were modified decades ago with non-standard flue extensions, angled tops from old stucco jobs, or odd dimensions that no catalog cap fits. We fabricate custom caps in stainless steel or copper, measured to your chimney, not to a chart. Custom caps start at $650 and depend on metal choice and complexity.
We recently capped a multi-flue stack on a greystone two-flat on Milwaukee Avenue near Palmer Square. The owner called about water stains in her unit’s closet, but our camera inspection found the neighbor’s flue had a collapsed clay liner with an unsealed crown. We installed a custom multi-flue cap from Olympia Chimney and applied HeatShield crown coating to both flues, stopping the leaks across both units in a single trip.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Logan Square
We stock caps, crowns, and coating materials from DuraFlex, HeatShield, Gelco, and Olympia Chimney. For Logan Square customers, that means no waiting two weeks for a special order while water pours into your flue. Our trucks carry the common sizes for pre-WWI multi-flue stacks, and our shop fabricates custom pieces for the odd dimensions we encounter on the older courtyard buildings off Logan Boulevard. When we say we’ll fix it, we mean with parts that fit, from brands that stand behind their products the same way we stand behind our work.
Common Chimney Cap & Crown Problems We See in Logan Square Homes
- Spalling lime mortar crowns after freeze-thaw cycles. Chicago’s northwest-side neighborhoods like Logan Square experience 25-35 freeze-thaw cycles per year, which relentlessly attack the deteriorating lime mortar joints on century-old masonry chimney stacks. Annual inspections routinely reveal spalling brick crowns, open mortar joints, and water infiltration into the multi-unit flue stacks that accelerate interior liner breakdown.
- Acid condensation destroying galvanized caps. Retrofit gas appliances in oversized coal-era flues create acidic condensation that eats through standard galvanized caps within 3-5 years. We replace these with stainless steel or copper that survives the environment.
- Partial capping leaving active flues exposed. Landlords often cap only the flue serving a vacant unit, leaving adjacent active flues exposed to wind-driven rain and raccoon entry. In Logan Square, where raccoons are roof-regulars on the older buildings, an open flue is an invitation.
- Cross-venting between units in shared stacks. Because so many Logan Square two-flats and three-flats still share a single exterior chimney stack with separate flues for each unit, a chimney tech here must be prepared to camera-inspect all flues in the stack, not just the one the landlord called about. A collapsed liner in one flue can vent combustion gases into an adjacent tenant’s flue.
Pricing for Chimney Cap & Crown in Logan Square, IL
| Service | Typical Range in Logan Square |
|---|---|
| Single-flue cap installation | $280-$420 |
| Single-flue cap replacement | $320-$480 |
| Crown coating | $380-$550 |
| Crown repair (2-flue stack) | $450-$680 |
| Multi-flue cap installation | $580-$780 |
| Custom fabricated cap | $650+ |
What moves you within these ranges? Height of the chimney, accessibility, whether we need scaffolding or just a ladder, and the condition of the existing crown underneath. A cap on a sound crown is straightforward. A cap on a crumbling crown means crown work first, cap second. We tell you which before we start.
Every estimate is free. The number we give you is the number on the invoice. We don’t find “surprise” problems after we’re on the roof. If we see something unexpected during the job, we show you the photo and get your go-ahead before adding work.
We honor a permanent 5% Senior and Veteran discount, and we offer $50 off any repair over $250. Call (888) 289-6055 for your exact quote.
We Also Serve Cities Near Logan Square
Our trucks roll daily to Logan Square, Avondale, West Town, Belmont Cragin, and Irving Park. Same crews, same materials, same 90-Day Done Right Promise. If you’re near the intersection of these neighborhoods and unsure which page fits your address, call us. We know the boundaries and we’ll route you correctly.
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 - Chimney Cap & Crown in Logan Square
One properly sized multi-flue cap is usually the better choice for Logan Square’s shared stacks. Individual caps leave gaps between flues where water and animals enter, and they don’t solve the cross-venting risk if one flue’s liner fails. We measure your flue spacing and install a multi-flue cap that covers the entire chimney top with proper clearance for each flue. Call (888) 289-6055 and we’ll inspect all flues in the stack to spec the right cap.
Chicago’s northwest-side neighborhoods like Logan Square experience 25-35 freeze-thaw cycles per year. Each cycle, water seeps into microscopic cracks in your crown, freezes, expands, and widens the crack. By March, a crown that looked fine in October can be actively funneling water into your flue. That’s why we recommend fall inspection for every Logan Square chimney.
You need the right cap, not just a new one. High-efficiency gas units in Logan Square’s oversized coal-era flues produce cooler exhaust with more moisture. The wrong cap restricts draft and accelerates condensation damage. We check your draft, your flue size, and your appliance specs before recommending a cap. Often the existing cap is the wrong type for the new furnace, even if it’s not visibly damaged.
Yes, and in Logan Square we routinely do. However, because so many buildings here share a single stack with multiple flues, we strongly recommend inspecting all flues in the stack, not just yours. A problem in the upstairs unit’s flue can affect yours through cross-venting or shared crown damage. We’ll coordinate with your upstairs neighbor if needed, or document what we can see from your access and explain what the full picture requires.
A standard cap comes in fixed sizes from a catalog. A custom cap is measured and fabricated to your chimney’s exact dimensions. Many 1910 Logan Square greystones have non-standard flue extensions, angled crowns from old repairs, or modifications that no catalog cap fits properly. We fabricate custom caps in stainless steel or copper at our shop. The fit is exact, the performance is better, and the appearance matches the building. Custom caps start at $650 versus $280-$480 for standard.
Call (888) 289-6055 for a free estimate on chimney cap and crown work in Logan Square. A live person answers, 24 hours a day, 7 days a week. We’ll be there when we say, we’ll show you photos of what we find, and we’ll stand behind the work with our 90-Day Done Right Promise in writing.
Written by the team at Hearthstone Chimney Co., serving Logan Square and Chicago since 2014.