Raccoons in Roofs and Chimneys: Removal Solutions for Mississauga Properties

It’s a cold April evening, and you’re about to light the first fire of the season to take the chill off. Then you hear it: a soft, high-pitched chattering coming down the chimney, like birds, but not quite. You put the matches down. Good call.

That sound is almost always baby raccoons. A mother raccoon sees a chimney or a quiet attic corner as a safe place to raise her young, and Mississauga’s older neighbourhoods and leafy streets have plenty of both. The right raccoon removal Mississauga homeowners can rely on gets the mother and her babies out together, without harming them, then caps or seals the entry so it can’t happen again.

Don’t count on the city to come take them away. The City of Mississauga says Animal Services will not trap and relocate healthy raccoons from their home territory, and that relocating them is illegal in Ontario. Getting a raccoon out of your roof or chimney is the property owner’s job.

Key Takeaways

• Roofs and chimneys are raccoons’ favourite den sites, especially from March to June, when mothers have babies.
• Never light a fire to drive a raccoon out of a chimney. It can kill the babies, fill your house with smoke and start a chimney fire.
• Don’t trap and relocate. Ontario law requires trapped wildlife to stay within 1 km of where it was caught, and Mississauga Animal Services won’t do it.
• Humane removal works. One-way doors and hand-removal of babies with a reunion box get the whole family out.
• Seal and cap afterward. Steel vent guards, soffit reinforcement and a bolted stainless steel chimney cap stop repeat visits.
• Clean up the den. Raccoon droppings can carry roundworm eggs, and nesting material in a chimney is a fire hazard.

Table of Contents

1. How Do You Know Raccoons Are in Your Roof or Chimney?
2. Why Do Raccoons Choose Roofs and Chimneys in Mississauga?
3. What Should You Do First, and What Should You Avoid?
4. How Does Raccoon Removal in Mississauga Work for Roofs and Chimneys?
5. How Do You Keep Raccoons Out After Removal?
6. What Should You Look for in Raccoon Control in Mississauga?
7. FAQs
8. Conclusion

How Do You Know Raccoons Are in Your Roof or Chimney?

The most common signs are heavy thumping at night, chattering or chirping sounds, damaged vents or soffits, and a strong smell near the fireplace or in upstairs rooms. Raccoons are big animals, so you’ll usually hear them clearly.

Signs Raccoons Are in Your Roof

1. Heavy footsteps at night. These sound like a person or a large dog moving overhead, not light scratching.
2. Damaged roof vents. Tilted, pulled off or torn.
3. Pushed-in soffit. Bent or missing panels, especially at corners.
4. Torn shingles around the roof edge or near vents.
5. Grease marks around an opening.
6. Water stains on upstairs ceilings from urine or roof leaks.

Signs Raccoons Are in Your Chimney

1. Chattering or chirping from the fireplace, especially in spring.
2. Scratching or rustling inside the flue.
3. A musky or ammonia smell near the fireplace.
4. Debris like leaves, twigs or droppings falling onto the damper or hearth.
5. A missing or damaged chimney cap you can see from the street.

When raccoons in roof Mississauga homes report these signs between March and June, there’s a good chance babies are involved.

Why Do Raccoons Choose Roofs and Chimneys in Mississauga?

Raccoons pick roofs and chimneys because they’re high up, dry, warm and safe from predators. To a mother raccoon, a chimney looks a lot like the hollow tree she’d use in the wild.

What Makes Mississauga a Target

• Mature trees. Mineola, Lorne Park, Port Credit, Clarkson and Applewood have big trees with branches reaching over roofs.
• Older homes. Many have aging soffits, uncapped chimneys and roof vents that have never been reinforced.
• Ravines and green space. The Credit River valley, Cooksville Creek, Etobicoke Creek and the waterfront parks give raccoons easy routes between yards.
• Food. Green bins, compost, pet food and bird feeders keep them close.

The Raccoon Calendar

• January to March: Mating season. Males roam, and females start looking for dens.
• March to May: Babies are born, usually three to five kits per litter.
• May to July: Kits grow and start moving around the den.
• Summer: Kits follow their mother outside at night.
• Fall and winter: Raccoons don’t hibernate, but they sleep through cold spells in dens, often in attics and chimneys.

Spring is the most sensitive time for removal, because a mother won’t leave her babies behind.

What Should You Do First, and What Should You Avoid?

Keep the fireplace damper closed, don’t light a fire, and don’t try to seal the opening yourself. Then call a professional who can check for babies and plan a humane removal.

What to Do Right Away

1. Close the fireplace damper and glass doors so the raccoon can’t get into your house.
2. Keep pets and kids away from the fireplace and attic access.
3. Note when you hear noise. This helps tell whether you’re dealing with one adult or a mother with babies.
4. Look from the ground for an obvious entry point, such as a missing cap or torn vent.

What to Avoid

• Lighting a fire. Smoke can kill the babies and drive the mother into your home. Nesting material can also catch fire.
• Sealing the hole while they’re inside. The mother will tear a new hole to get back to her young.
• Trapping and relocating. It’s illegal in Ontario to move a raccoon more than 1 km away, and trapping a mother leaves her babies to starve.
• Climbing on the roof yourself. Falls cause far more injuries than raccoons do.
• Poisons or smoke bombs. These are dangerous, illegal for wildlife and can leave a dead animal stuck in your chimney.

About the City’s “Harassment” Tips

The City of Mississauga suggests trying bright lights, a loud radio or rags soaked in apple cider vinegar near the den for three days and nights. This sometimes works on a single adult raccoon. It rarely works on a mother with babies, and it doesn’t fix the opening, so another raccoon can move right back in.

How Does Raccoon Removal in Mississauga Work for Roofs and Chimneys?

Professional removal starts with an inspection, then uses one-way doors or hand-removal of babies with a reunion box so the mother moves her family herself. Once the den is empty, the entry point is sealed or capped with steel.

Step 1: Inspection

A technician checks the roof, vents, soffits, chimney, attic and the ground around the house. They find the main entry point, check for babies and look for other weak spots.

Step 2A: Roof and Attic Removal

• No babies: A heavy steel one-way door goes over the entry point. The raccoon leaves at night to feed and can’t get back in.
• With babies: The kits are found and taken out of the attic by hand, then placed in a warmed reunion box near the entry. The mother comes back that night and carries them to a new den.

Step 2B: Chimney Removal

Chimneys are trickier, because the babies are often on the smoke shelf just above the damper.

1. The technician reaches the kits through the damper or from the top of the chimney.
2. The kits are placed in a warmed reunion box on the roof or at the base of the house.
3. A one-way door or exclusion cover is installed at the top of the flue.
4. The mother retrieves her babies overnight and can’t get back in.

Step 3: Confirm the Den Is Empty

The technician comes back to check that all raccoons are gone before the final seal goes on. Skipping this step is how babies get trapped inside.

Step 4: Seal, Cap and Repair

• A bolted stainless steel chimney cap with mesh sides
• Steel guards over roof vents
• Steel mesh behind soffit panels and at roof corners
• Repairs to damaged shingles, soffit and fascia

Step 5: Cleanup

Raccoon droppings can carry roundworm eggs that stay alive for years and can make people very sick if swallowed or breathed in. Attic cleanup means removing soiled insulation, disinfecting and replacing insulation where needed. In chimneys, nesting material and droppings should be cleared out before the fireplace is used again.

Real Example From the Field

A homeowner in Lorne Park heard chattering in her chimney in late April and nearly lit a fire to “smoke them out.” Instead, she called us. We found a mother and four kits on the smoke shelf.

The kits went into a reunion box on the roof, and the mother moved them to a nearby tree that night. The next day, we installed a stainless steel cap and arranged a chimney sweep. The family enjoyed their first fire of the fall without any surprises.

Commercial Properties

Plazas, offices and low-rise apartment buildings in Mississauga get raccoons too, usually through rooftop vents, HVAC units and parapet gaps on flat roofs. The process is the same: humane removal, steel exclusion and cleanup, scheduled around business hours.

How Do You Keep Raccoons Out After Removal?

Install steel protection at every weak spot, remove food sources and trim trees back from the roof. Raccoons look for the easiest way in, so the goal is to leave them no easy options.

Roof and Chimney Protection

1. Chimney cap. Stainless steel with mesh sides, bolted to the chimney crown so raccoons can’t pry it off.
2. Vent guards. Steel cages over each roof vent.
3. Soffit reinforcement. Steel mesh behind soffit panels, especially at corners and roof returns.
4. Plumbing stack guards. Mesh around pipes on the roof.
5. Gable vent screening. Heavy mesh behind louvres.

Yard and Household Habits

• Lock green bins and store garbage in the garage until collection day.
• Bring pet food inside at night.
• Take down bird feeders, or clean up spilled seed daily.
• Trim tree branches at least 2 metres from the roof.
• Secure compost in a closed bin.
• Check your roof every spring and fall, especially after windstorms.

What Doesn’t Work Long Term

Mothballs, ammonia, ultrasonic devices and plastic mesh might slow a raccoon down for a night or two. Steel is the only material that keeps them out for good.

What Should You Look for in Raccoon Control in Mississauga?

Pick a company that uses humane removal, checks for babies, uses steel materials for sealing and capping, and stands behind its work with a written warranty. They should also be able to work safely on roofs and chimneys.

At Wise Pest Solutions, our raccoon control Mississauga service covers the full job, from removal to the final cap or seal, so you’re not stuck coordinating a removal company, a roofer and a chimney sweep on your own.

Questions to Ask Before Hiring

• Do you use one-way doors and reunion boxes, or traps?
• How do you handle babies in a chimney or attic?
• What type of chimney cap do you install, and how is it fastened?
• Do you seal every weak spot or only the entry point?
• Do you offer attic cleanup?
• What does your warranty cover, and for how long?

What Affects the Cost

There’s no flat price, because every roof and chimney is different. The main factors are:

1. Roof versus chimney. Chimney jobs often need special equipment.
2. Babies. Spring removals take more time and care.
3. Number of entry points. Most homes need more than one spot sealed.
4. Roof height and pitch. Steeper roofs need more safety gear.
5. Repairs and cleanup. Soffit, shingle and insulation work add to the job.
6. Chimney cap size. Larger or unusual chimneys need custom caps.

Ask for a written quote that lists removal, repairs, capping, cleanup and warranty as separate items.

FAQs

Can I Light a Fire to Get a Raccoon Out of My Chimney?

No. Smoke can kill the babies and push the mother down into your home. Nesting material can also catch fire. Keep the damper closed and call a professional instead.

Will Mississauga Animal Services Remove a Raccoon From My Roof?

No. The City won’t trap and relocate healthy raccoons, and doing so is illegal in Ontario. Animal Services does help with raccoons that are sick, injured or orphaned. You can reach them at 905-896-5858.

How Long Does Raccoon Removal Take?

Most raccoons leave within one to three nights after a one-way door or reunion box is set up. With babies, it can take a little longer. Sealing and capping usually happen within a day or two after that.

Do I Need My Chimney Cleaned After Raccoons?

Yes, it’s a good idea. Raccoons leave nesting material, droppings and sometimes food in the flue, all of which are a fire and health risk. A chimney sweep should clear it before you use the fireplace again.

How Do I Know if the Raccoon Has Babies?

Listen for high-pitched chattering, chirping or whining, especially between March and June. If you hear it, assume there are babies and don’t seal anything. A technician can confirm with an inspection.

Conclusion

A raccoon in your roof or chimney won’t move out on its own, especially if she’s raising a family. Every night she stays, the damage spreads: torn vents, soiled insulation, a blocked flue and a fire risk you can’t see.

The solution is straightforward and humane: get the mother and her babies out together, cap or seal the entry with steel, clean up the den and protect the other weak spots before the next raccoon comes looking.

Hearing chattering in your chimney or thumping in your roof? Book a raccoon inspection with Wise Pest Solutions for raccoon removal Mississauga homeowners can count on, from humane removal to a bolted chimney cap, with a clear written quote before we start.