Skip to content
One Call ChimneyCall

Who to call for chimney smell in Chicago, IL

Much of Chicago's housing was built before 1945, and most of it is masonry: brick bungalows, two- and three-flats, greystones. If the fireplace in one of those homes smells of smoke or damp, especially in summer, the flue almost certainly has creosote in it, or water is getting in somewhere. The work is done by independent sweeps and masons, and One Call Chimney arranges it. Look for one who puts a camera up the flue, shows you what it sees, and explains the cause in writing before anything starts.

Phones answered around the clock · free estimate

The smell is usually the creosote itself. Warm, humid air outside and a cool flue inside can reverse the airflow, so the chimney breathes into the house. That is why the smell is worse in summer. Water at the cap, crown or flashing, or a nest or animal debris in the flue, can add to it. A sweep can find which of these it is.

While you wait — please don't

  • Do not light a fire until it is checked. A flue that smells strongly may be full of fuel, and burning in it risks a chimney fire.
  • Do not hide the smell. Closing the damper and using air freshener covers up a flue that may need cleaning and does nothing to fix it.
  • Do not ignore headaches or nausea. A smell with headaches or nausea means carbon monoxide until proven otherwise, so get everyone outside and call 911.
  • Do not wait for the smell to pass. Summer smells tend to come back each humid spell, and the cause stays in the chimney until someone removes it.

What the technician does

  • Inspection firstThe technician looks at the flue, usually with a camera, and finds where the smell comes from. You see what they see.
  • SweepingBecause the smell is usually the creosote itself, a sweep often fixes most of it. The technician removes the buildup from the flue.
  • Closing the moisture pathIf water is getting in at the cap, crown or flashing, that gets closed so the flue stays drier.
  • Clearing debrisNest material or animal debris that is giving off odor is removed from the flue.
  • Damper workA damper that does not seal can be repaired. A top-sealing damper can be fitted to keep outside air from moving down the flue.
  • Price before workThe estimate is free. The technician gives you the price after inspecting, and you approve it before any work begins.

Why this happens in Chicago, IL

Chicago's older brick homes have masonry chimneys, many built for coal or earlier appliances. In plenty of them the chimney now serves a furnace or water heater rather than an active fireplace. Illinois summers are humid, and that moisture can sit in masonry and in flues that are rarely used. It can produce odors and speed up liner corrosion. A flue that looks fine from the room can still smell in July.

Winters here are long and cold, with repeated freeze-thaw cycles. Illinois's heating season typically runs from about October into April, so flues see months of continuous use. Freeze-thaw also wears on exposed brick, mortar joints and crowns, and wind-driven rain and snow off the prairie and the lake can find those weak spots. Demand for sweeps picks up in early fall. Masonry and crown repairs are mostly done in warmer months, when mortar can cure without freezing. Whether you are in Lakeview, Bridgeport or Albany Park, a smell this summer is a good reason to have the chimney looked at before heating season.

Questions people ask

Why does my Chicago fireplace smell worse in summer?
Warm, humid air and a cool flue can reverse the airflow, so the chimney breathes into the house. Humid summers also leave moisture in masonry and rarely used flues, which adds to odors.
My older Chicago brick chimney only serves a furnace. Can it still smell?
Yes. Many older masonry flues were built for coal or earlier appliances and now vent a furnace or water heater. Moisture, debris or an unsuitable liner can still cause odor, and a technician can check the flue's condition.
Do I need a permit in Chicago for this?
Routine sweeping and basic inspection generally do not need one. Relining a chimney or rebuilding it above the roofline commonly does. In Chicago permits go through the Department of Buildings, so confirm with them before larger work begins.
Who holds the license for chimney work in Illinois?
Illinois does not license chimney sweeping or masonry repair as a separate trade at the state level. Requirements are set locally, so ask the technician what applies where you live and check with your building department or the Illinois Department of Financial and Professional Regulation.
Is One Call Chimney the company that does the work?
No. We are a referral and scheduling service that arranges the job with independent sweeps and masons. The estimate is free, and you approve the price before any work starts.

One call

Call (866) 576-7943 and One Call Chimney will arrange an independent technician for your chimney smell in Chicago. The estimate is free, and the price is agreed with you before any work starts.

Call now · (866) 576-7943
Call (866) 576-7943

Phones answered around the clock

Call (866) 576-7943