Who to call for cracked crown or crumbling brick in Chicago, IL
Much of Chicago's housing stock predates 1945 and is masonry: brick bungalows, two- and three-flats, and greystones, each with a chimney that has been through a lot of winters. If the top of yours is cracked and brick is coming off, the crown has almost certainly failed and water is getting into the brick below it. Independent masons and sweeps do this repair, and One Call Chimney is a referral and scheduling service that arranges it. We are not the contractor. Look for someone who inspects the stack first, gives you the price before any work starts, and explains the repair in writing.
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Freeze and thaw is what turns a hairline crack into a rebuild. Chicago has long, cold winters and repeated freeze-thaw cycles. Water gets into a small crack, freezes, and pushes the crack wider. Each cycle takes a little more mortar and a little more brick. That is why a small crack left alone can end up needing much more work.
While you wait — please don't
- Keep people away from the base of the chimney. Falling brick is a hazard at ground level, so keep children, pets and yourself clear of the area below the stack, including the yard or alley beside it.
- Do not climb up to patch it yourself. A roof edge in winter is a poor place to work, and a quick patch can hide the gaps a technician needs to see.
- Stop using the fireplace if the stack leans or has open gaps. A leaning stack or one with open gaps is structural rather than cosmetic, and it may not vent safely.
- Get outside and call 911 if anyone feels unwell. Headache, dizziness or nausea while a fireplace, furnace or water heater is running can be carbon monoxide, so leave the building first and call 911.
What the technician does
- Inspection firstThe technician looks at the crown, the brick, the mortar joints and the cap, and checks whether the stack has lost structure. You get a free estimate on every job.
- Price before workThe technician gives you the price after inspecting the chimney and before any work starts. Nothing begins until you approve it. Ask for the reasoning in writing.
- Crown repaired or recastA sound crown can be repaired. A failed one is recast with an overhang and a drip edge so water runs off the stack instead of into it.
- Repointing and brick replacementLoose mortar is repointed, matched to the existing work. Spalled brick is cut out and replaced.
- Cap fittedA cap goes on the top of the flue to keep rain and snow out.
- Rebuild above the roofline if neededWhere the stack has lost structure, the part above the roofline is rebuilt. This is the work a permit is most likely to cover.
Why this happens in Chicago, IL
Chicago's older brick homes are the reason this call is so common. Many masonry chimneys here now serve furnaces and water heaters rather than active fireplaces, so they get little attention until brick lands in the yard. Vintage brick also needs regular tuckpointing, and many older masonry flues were built for coal or earlier appliances. In Pilsen, Bridgeport, Logan Square or Rogers Park, a technician who sees a crumbling top will usually want to look at the joints and the liner below it as well.
Demand rises in late fall as homeowners prepare chimneys for winter, and again in the spring thaw when freeze-thaw damage to masonry shows up. Illinois has a long heating season, typically from about October into April, so flues see months of continuous use. Masonry rebuilding, tuckpointing and crown repair are generally done in the warmer months, when mortar can cure without freezing. If you see damage in the cold months, a technician can still inspect it and tell you what can wait and what cannot.
Questions people ask
- Does Chicago need a permit to rebuild a chimney?
- A permit is commonly required to rebuild or substantially alter a chimney above the roofline, and in Chicago permits are handled by the Department of Buildings. Routine sweeping and basic inspection generally are not permitted work. Confirm with the Department of Buildings before work begins, since Chicago keeps its own building code.
- Does Illinois license chimney masons?
- Illinois does not separately license chimney sweeping, inspection or masonry repair at the state level. Requirements are handled locally, and many municipalities ask contractors to register or hold a local licence and carry insurance before pulling permits. Ask the technician what applies in your area, and check with the Illinois Department of Financial and Professional Regulation or the building department.
- Why did my chimney top fall apart so quickly?
- In Chicago, repeated freeze-thaw cycles do the damage. Water gets into cracks in the crown and joints, freezes, and widens them. Heavy snow and wind-driven rain add more water at the crown and cap.
- My chimney only vents a furnace. Does it still matter?
- Yes. Many older Chicago chimneys now vent gas appliances, and a crumbling stack or damaged flue can affect how those appliances vent. Old masonry flues built for coal may also need a properly sized liner. The technician can check this during the inspection.
- How much will the repair cost?
- The estimate is free on every job. The technician inspects the chimney and gives you the price before any work starts, and you approve it first.
One call
Call (866) 576-7943 and One Call Chimney will arrange an independent technician for your cracked crown or crumbling brick in Chicago. The estimate is free, and the price is agreed with you before any work starts.
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Something else in this area
- Never been swept
- Water coming in
- Smoke comes back into the room
- Something living up there
- Smells of smoke or damp
- Damper stuck or broken
- Liner damaged or missing
- Rebuild or new chimney
One Call Chimney arranges the visit; the technician does the work and gives you the price.