Chimney Animal and Bird Removal in Rockford, IL

What lives in chimneys

A chimney is a tall, warm, sheltered hollow, and animals use it. The usual guests are raccoons, which can pry up an uncapped flue and den in the smoke shelf, squirrels, birds such as starlings and sparrows, and chimney swifts, a small bird that nests and roosts inside masonry chimneys. Bats and other animals do get in. What you do depends on what it is, and swifts are handled differently from every other animal, as covered below.

Signs an animal is in the chimney

• Scratching, scrabbling or thumping inside the flue, often at dusk or early morning.
• Chirping or a rapid chittering sound. Swift chicks make a constant rattling cry.
• Twigs, nest material, feathers, droppings or fur in the firebox.
• A smell from the fireplace that is worse in warm, humid weather.
• An animal in the room. Close the damper and doors and call for help rather than chase it.
• Smoke backs up when you light a fire. A nest can plug the flue.

A nest in the flue is a carbon monoxide and fire risk. Never light a fire to smoke an animal out. Smoke or heat can harm the animal and set the nest alight.

Chimney swifts: the legal exception

Chimney swifts are small, dark birds that glue a twig nest to the inside of a chimney. The Illinois DNR calls them a common migrant and summer resident across the state. They are protected under the federal Migratory Bird Treaty Act. Illinois Extension adds that most native birds and their active nests are protected under federal law and the Illinois Wildlife Code. Removing or disturbing a swift nest while it is in use can be illegal.

The Illinois DNR says fall migration begins in September. That is the reason to sweep and cap from the fall to the spring. Swifts that are inside in summer are left alone until they leave. After they leave, the chimney can be cleaned and capped so they cannot return as a problem. The chimney swifts guide explains how to tell them from a pest, and what to do in the meantime. The best time to sweep guide covers the calendar.

How removal works for other animals

1. The technician identifies the animal and checks whether young are present. A mother with young is not evicted in a way that strands the babies.
2. The animal is removed or encouraged out through a one-way door, trap or by hand. The flue is checked afterward for damage.
3. Nest material, droppings and debris are cleaned out of the flue, smoke shelf and firebox.
4. The flue is inspected with a light or camera for damage and blockage.
5. A cap with mesh is installed, or repaired, so the animal cannot return. See cap installation.
6. Sometimes the damper or the flue tile needs repair. See fireplace repair.

Wildlife professionals do the trapping and exclusion. A chimney sweep often clears nests and debris and installs the cap. Ask which part of the work the person you hire does and who does the rest.

Other animals you may find

Squirrels chew and nest, and can chew wiring and damper parts. Starlings and sparrows stuff the flue with straw and twigs, which can block it. Raccoons are strong enough to lift a loose cap, and den on the smoke shelf. Each animal needs a different removal and a different way to keep it out. Wildlife rules vary by animal, so ask the professional which ones apply to yours before work starts.

What animal removal costs

HomeGuide, animal and wildlife removal cost (updated February 13, 2026) puts chimney animal removal at $600 to $1,500, and says that covers trapping, cleaning, an exclusion door and sealing. Angi, chimney sweep cost (updated July 10, 2026) puts a sweep freeing a trapped animal at $200 to $600. The animal, the number of young, the amount of cleanup and the cap decide the price. A cap added at the same visit costs less than a separate trip. See the cost page for the other chimney jobs.

Why Rockford chimneys attract animals

Winnebago County heats with gas: 83.5% of homes, and only 169 heat with wood (Census ACS 5-year). So many chimneys here sit unused, uncapped and unswept for years. An unused flue is quiet and sheltered. With 22.4% of Rockford's housing units built before 1940 and the median home built in 1963, a lot of older masonry chimneys here also have open tops or loose caps. A furnace flue that is shared with the fireplace still carries exhaust, so a nest in it is a carbon monoxide risk for the whole house. The cure is simple: cap every flue.

Before the professional arrives

• Do not light a fire. Smoke or heat can harm the animal and ignite a nest.
• Close the damper and any glass doors, and keep pets and children away from the fireplace.
• Hang a cloth or tape plastic over the opening so nothing gets into the room. Do not seal it so tightly that you trap an animal inside the house.
• Note the time of day, the sounds and the season. They help identify the animal.
• Look but do not reach in. A cornered raccoon or squirrel can bite and scratch.

Why timing changes the plan

The season matters twice. For swifts, the law sets it. They are in the chimney in summer, and work waits for fall. For mammals, many animals den and raise young in spring and early summer. Removing a mother and leaving the young is cruel and creates a smell problem. A careful technician checks for young before any removal. Winter is quieter, which is the same reason it is the best time for the sweep and the cap. See best time to sweep.

Cleanup and health

Nests and droppings in a chimney are not just a nuisance. A nest burns and can block the flue. Droppings and nest material can carry parasites and disease. Leave the cleanup to the technician, who wears the right gear and removes the material rather than pushing it down into the firebox. Ask that the flue be inspected afterward, because an animal that has lived in a chimney may have damaged the damper or the tile.

Keeping them out for good

A properly fitted cap with mesh is the answer. For chimneys that you do not use, a cap also keeps rain out. Check it after storms. Keep the damper closed when you are not burning. Trim tree limbs that give animals a way onto the roof. And do not leave a gap at the crown. Raccoons exploit them. If you do not use a flue, a cap on it, and a plug or an unused-flue cover below it, shuts it off. The cap guide explains each type.

Questions to ask before you hire

• What animal is it? How do you know?
• How do you deal with young animals, and with swifts?
• Does the price include cleanup and a cap, or just the removal?
• Do you hold the licenses or permits that wildlife work needs?
• Will you inspect the flue after, and give me the findings in writing?

Describe the sounds, the season and what you have found in the firebox. We reply with a price first.