Something living up there in Waukegan, IL
If you can hear scratching or birds in your chimney, an animal has almost certainly gone in through that open top and is now in the flue. The usual cause is simple: the flue has no cap, or the cap is gone.
Phones answered around the clock · free estimate

It happens here because the flue is a ready-made shelter. Waukegan homes lose heat for months, and a warm, dark, sheltered shaft looks like a good place to nest. Spring is the peak. Once a nest is built, it can sit right where smoke needs to travel.
While you wait — please don't
- Do not light a fire to drive it out. It is cruel to the animal, and burning nesting material is a common cause of chimney fires.
- Stop using the fireplace or stove. A nest or debris can block the flue, and a blocked flue can push smoke and carbon monoxide into the house.
- Get outside and call 911 if you feel unwell. Headache, dizziness, nausea or smoke in the room can point to carbon monoxide, so leave the house first and call 911.
- Do not handle droppings or nest material. Droppings carry disease, and in many places nesting birds are legally protected, so leave removal to the technician.
What the technician does
- You call One Call ChimneyWe are a referral and scheduling service. We arrange the job with an independent sweep or mason in the Waukegan area. We are not the contractor and we do not do the work ourselves.
- The animal is identified firstThe technician works out what is in the flue before anything is done. The species decides how it should be handled.
- Removal or humane evictionWhere the species requires it, a wildlife specialist is brought in. The aim is to get the animal out safely, not to harm it.
- Nest and debris clearedNesting material and debris are removed from the flue. Droppings and leftover material are not left to sit and smell.
- Flue swept and inspectedThe flue is swept and inspected so you know it is clear and sound. Ask to see the camera footage if one is used.
- A properly sized cap with mesh is fittedThe cap closes the opening that let the animal in. You get a free estimate, and the technician gives you the price before any work starts. Nothing begins until you approve it.
Why this happens in Waukegan, IL
Many Waukegan homes are older, with pre-1940 and mid-century houses, frame bungalows, foursquares and Victorians. Masonry chimneys are widespread on this older stock. Decades of lakefront freeze-thaw can crack crowns and open mortar joints, and a damaged crown or missing cap gives animals an easy way in. Newer brick and vinyl-sided subdivisions on the west and north sides are more likely to have factory-built metal fireplaces with a chimney chase, and those need a cap with mesh as well.
Illinois has a long heating season, roughly October into April, so flues sit unused for the warm months and are then busy for the cold ones. A flue that sits idle through humid summers can also hold moisture and give off odors. Spring nesting is the peak for animals in Waukegan chimneys. Late fall is a good time to have the flue checked and capped, before you light the first fire of the season.
Questions people ask
- Is it normal to hear birds in a chimney in Waukegan in spring?
- Yes. Spring nesting is the peak, and an uncapped flue is the whole cause. A cap with mesh over the flue stops it from happening again.
- Can I just wait for the animal to leave?
- Sometimes it will leave, but a nest or debris can stay behind and block the flue. It is better to have the flue checked before you use it again. Until then, do not light a fire.
- My Waukegan house is old. Does that make it more likely?
- It can. Older neighborhoods near downtown have many century-old masonry chimneys, and freeze-thaw wear can crack crowns and mortar. The technician can inspect the top of the chimney while the cap is fitted.
- Do I need a permit to have a cap fitted?
- Permits in Illinois are issued locally, so the Waukegan building department can tell you what applies. Routine sweeping and basic inspection are generally not permitted work. Permits are more common for relining or rebuilding a chimney.
- Who actually does the work?
- An independent sweep or mason does it. One Call Chimney arranges the visit but is not the contractor. The estimate is free, and you approve the price before anything starts.
One call
Call (866) 576-7943 and we will arrange a technician for the animal in your Waukegan chimney. The estimate is free, and the price is agreed with you before any work starts.
More from One Call Chimney
Nearby
Answers
Free tool
Something else in this area
- Smoke comes back into the room
- Damper stuck or broken
- Liner damaged or missing
- Never been swept
- Water coming in
- Smells of smoke or damp
- Cracked crown or crumbling brick
- Rebuild or new chimney
One Call Chimney arranges the visit; the technician does the work and gives you the price.
