How serious is a cracked chimney crown?

A hairline crack is a warning. Freeze and thaw is what turns it into a rebuild, so cold regions like Evanston lose stacks faster. Loose brick, open gaps or a lean mean the problem is structural and needs a look soon.

Do I need a permit in Evanston for chimney repair?

Illinois permits are issued locally. A permit is commonly required to rebuild or substantially alter a chimney above the roofline, but routine repair rules vary. Ask the Evanston building department before work begins.

Does Illinois license chimney masons?

Not as a separate trade at the state level. Requirements are handled locally, and many cities require contractors to register or hold a local licence and carry insurance. Check with the Illinois Department of Financial and Professional Regulation and the local building department.

Why do older Evanston chimneys crumble?

Many homes here are a century old or more, so the original brick and mortar have gone through a very long run of freeze-thaw cycles. Road salt and damp lake wind add to the wear.

What does the estimate involve?

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.

Who to call for cracked crown or crumbling brick in Evanston, IL

Many Evanston homes are a century old or more, and the brick chimneys on them have been through a hundred 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 masonry. The right person to call is an independent mason who repairs chimney stacks. Ask to see their current local registration or contractor licence where the city requires one, and their proof of insurance. Ask them to put the repair plan and the reasoning in writing. One Call Chimney is a referral and scheduling service. We arrange the work with independent sweeps and masons. We are not the contractor and we do not do the work.

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Here is why it happens in Evanston. Winters are cold and snowy, and the freeze-thaw cycle repeats all season. Water gets into a small crack, freezes, and pushes the crack wider. Heavy road salt use and damp, windy air off Lake Michigan make it worse. Illinois flues also run from about October into April, so the masonry takes heat and cold again and again. A hairline crack in the crown becomes loose mortar, then flaking brick.

While you wait — please don't

Stay out from under the stack. Falling brick is a hazard at ground level, so keep people, pets and cars away from the base of the chimney.
Do not climb up to look. A wet or icy roof and loose masonry are a bad mix, and the technician can inspect the top safely.
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 should not carry fire or flue gases until it has been checked.
Get outside if anyone feels unwell while a fire is burning. Headache, dizziness or nausea can signal carbon monoxide, so leave the house and call 911.

What the technician does

Inspection firstThe technician looks at the crown, the brick, the mortar joints and the stack above the roofline. You get the price after this inspection and before any work starts.
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 to match the existing work. Spalled brick is cut out and replaced.
Cap fittedA chimney cap goes on to help keep rain and snow out of the flue.
Rebuild where neededIf the stack has lost its structure above the roofline, the technician will explain that it needs a rebuild and why. You approve the price first.

Why this happens in Evanston, IL

Evanston has brick and frame houses from the late 1800s through the mid-1900s, and many have masonry chimneys and fireplaces. Original brick and old mortar take the most punishment from freeze-thaw. That is true whether you are in Ridgeville, South Evanston, near Central Street or close to the lakefront. If you live in a condo or multi-unit building, check with your association before you book, since the chimney may be a shared part of the building.

Timing matters here. Illinois masonry repair is done mostly in the warmer months, when mortar can cure without freezing. Calls tend to rise in spring after freeze-thaw damage and storms, and again in late fall and winter. If you see cracking or loose brick now, getting it looked at before the next hard freeze can keep a repair from turning into a rebuild.

Questions people ask

How serious is a cracked chimney crown?: A hairline crack is a warning. Freeze and thaw is what turns it into a rebuild, so cold regions like Evanston lose stacks faster. Loose brick, open gaps or a lean mean the problem is structural and needs a look soon.
Do I need a permit in Evanston for chimney repair?: Illinois permits are issued locally. A permit is commonly required to rebuild or substantially alter a chimney above the roofline, but routine repair rules vary. Ask the Evanston building department before work begins.
Does Illinois license chimney masons?: Not as a separate trade at the state level. Requirements are handled locally, and many cities require contractors to register or hold a local licence and carry insurance. Check with the Illinois Department of Financial and Professional Regulation and the local building department.
Why do older Evanston chimneys crumble?: Many homes here are a century old or more, so the original brick and mortar have gone through a very long run of freeze-thaw cycles. Road salt and damp lake wind add to the wear.
What does the estimate involve?: 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 gets an independent mason lined up for your cracked crown or crumbling brick in Evanston. The estimate is free, and the price is agreed with you before any work starts.

Call now · (866) 576-7943

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One Call Chimney arranges the visit; the technician does the work and gives you the price.