Animal Infestation in Chimneys: How to Remove Squirrels, Birds & Pests in Highlands, NJ

Guide · October 31, 2026

Animal infestations in chimneys are common in Highlands due to older masonry homes and seasonal migration. Squirrels, birds, and raccoons can nest in flues or crowns, creating fire hazards and costly damage. Never attempt removal yourself, always call a licensed chimney sweep first to assess safety risks and use humane, professional methods. DIY traps or deterrents can worsen the problem by pushing animals deeper into the chimney or causing structural damage. For Highlands homeowners, the safest first step is a free inspection from a local chimney sweep to identify the extent of the infestation and the best removal plan.

What is an animal infestation in a chimney?

An animal infestation in a chimney happens when squirrels, birds, raccoons, or even bats take up residence inside your flue, crown, or chimney cap. In Highlands, this is more common in older homes with brick or stone chimneys, especially those near wooded areas like the Highlands Preserve or along the Navesink River. Animals are drawn to chimneys because they provide shelter, warmth, and easy access to nesting materials like leaves, twigs, or insulation. A single nest can block airflow, trap creosote buildup, and create a fire hazard. If you hear scratching, scurrying, or see droppings near your chimney, it’s a clear sign of an infestation. The Chimney Safety Institute of America (CSIA) warns that animal nests can also introduce pests like fleas or ticks into your home, posing health risks for your family and pets the Chimney Safety Institute of America (CSIA)|https://www.csia.org/)). Learn more about everything we handle.

Why you should never try DIY removal in Highlands

Highlands’ older homes often have chimneys built with mortar that’s decades old, and DIY removal attempts can weaken these structures. For example, using traps or smoke to force animals out might work for a raccoon, but squirrels or birds will often scatter into hidden crevices, making the problem worse. Worse yet, disturbing a nest can cause animals to panic and damage the chimney lining with their claws or teeth. The National Fire Protection Association (NFPA) states that improper removal can also leave behind nesting materials that ignite during fireplace use the National Fire Protection Association (NFPA)|https://www.nfpa.org/)). Also, Highlands’ strict building codes require that any work affecting a chimney’s integrity must be done by a licensed professional. If you attempt removal yourself and cause damage, your homeowners insurance may not cover repairs. Always start with a free inspection from a licensed chimney sweep in Highlands to assess the situation safely. Start with reach us for a written quote.

Step-by-step: How a chimney sweep removes animal infestations

A professional chimney sweep follows a precise process to remove animals and restore your chimney’s safety. Here’s what to expect during a Highlands chimney sweep appointment for animal removal:

1. Inspection: The technician will use a camera to check the chimney’s interior for nests, damage, or blockages. This step is critical in Highlands, where older chimneys may have hidden cracks or deteriorated mortar.

2. Humane Removal: For live animals, the sweep will use one-way exclusion devices or live traps to safely relocate them. Never attempt this yourself, animals can bite or scratch, and improper handling can cause them to damage the chimney further.

3. Cleaning: After removal, the chimney is thoroughly cleaned to remove nesting materials, droppings, and any debris. This prevents pests like fleas or mites from spreading into your home.

4. Repairs: If the chimney has cracks, loose bricks, or damaged liners from the infestation, the sweep will recommend repairs. In Highlands, where winter storms can exacerbate existing damage, addressing these issues promptly is key to preventing water leaks or further animal entry.

5. Prevention: The technician will install chimney caps, screens, or other deterrents to block future intruders. For Highlands homeowners, a stainless steel chimney cap is often the best long-term solution, as it withstands our coastal climate and deters squirrels and birds.

The cost for animal removal in Highlands typically ranges from $150 to $400, depending on the severity of the infestation and any necessary repairs. This is a small price compared to the potential damage from a chimney fire or structural failure. For a detailed quote, contact a licensed chimney sweep near you contact and ask about their animal removal services.

Signs your Highlands chimney has an animal infestation

Highlands’ older homes and dense foliage make animal infestations more likely, so knowing the warning signs can save you from costly repairs. Here’s what to watch for:

- Unusual Noises: Scratching, chirping, or scurrying sounds coming from your chimney, especially at night, are a red flag. Squirrels are common in Highlands due to the nearby wooded areas, while birds like starlings or sparrows may nest in flues.

- Droppings or Nesting Materials: Finding feathers, twigs, or droppings around your chimney cap or fireplace is a clear sign of an infestation. In Highlands, where homes are close to nature trails, this is more frequent than in urban areas.

- Smoke Issues: If smoke backs up into your home instead of venting out, it’s likely because an animal has blocked the flue. This is dangerous and requires immediate attention.

- Strong Odors: A foul smell coming from your chimney could mean animal waste or decaying nesting materials. This is especially common in older Highlands homes with poorly maintained chimneys.

- Visible Animals: Seeing a squirrel, bird, or raccoon near or inside your chimney is the most obvious sign. If you spot one, don’t try to remove it yourself, call a chimney sweep immediately.

If you spot any of these warning signs in your chimney, book a check-up right away, don’t wait. Animal infestations worsen over time, and the longer you wait, the more damage can occur. For Highlands homeowners, the best time to address this is before winter, when animals are more likely to seek shelter in warm chimneys.

How to prevent animal infestations in your Highlands chimney

Prevention is the best way to avoid animal infestations in your Highlands chimney. Here are practical steps you can take:

1. Install a Chimney Cap: A stainless steel chimney cap is the most effective deterrent for squirrels, birds, and raccoons. In Highlands, where coastal winds can be strong, a well-sealed cap also protects against water damage. Look for caps with mesh screens that allow smoke to escape but block animals.

2. Regular Chimney Inspections: The CSIA recommends an annual inspection for homes in Highlands, especially those with fireplaces or wood stoves the Chimney Safety Institute of America (CSIA)|https://www.csia.org/)). This helps catch small issues before they become infestations.

3. Keep the Area Clean: Remove leaves, branches, and debris from around your chimney. Animals are less likely to nest if there’s no easy access to materials. In Highlands, where fall leaves accumulate quickly, this is a simple but effective habit.

4. Use Deterrents: Motion-activated lights or ultrasonic repellents can discourage animals from approaching your chimney. However, these are not foolproof, always pair them with a chimney cap for maximum protection.

5. Seal Entry Points: Check for cracks or gaps in your chimney crown or bricks. Use high-quality mortar to seal these areas. In Highlands’ humid climate, waterproofing your chimney is also crucial to prevent deterioration that could attract animals.

For first-time Highlands homeowners, the easiest and most reliable prevention method is installing a chimney cap and scheduling annual inspections. If you’re unsure about the condition of your chimney, contact a licensed chimney sweep near you for a free estimate contact. They can also recommend the best cap for your specific chimney type.

What to do if you find an animal in your chimney right now

If you discover an animal in your chimney, your first priority is safety. Here’s what to do immediately:

1. Do Not Disturb the Animal: Avoid poking, spraying, or attempting to remove it yourself. This can cause the animal to panic and damage the chimney or bite you. In Highlands, where some animals may carry diseases like rabies, it’s best to leave removal to the professionals.

2. Turn Off Your Fireplace: If you use your fireplace, extinguish it and keep it off until the chimney is cleared. Burning a fire with an animal inside can be deadly.

3. Call a Licensed Chimney Sweep: A professional will use humane methods to remove the animal and assess any damage. In Highlands, companies like Marcus T Chimney Inc specialize in safe, efficient animal removal. They’ll also check for structural issues that could allow future infestations.

4. Avoid DIY Traps: While some homeowners try using smoke or traps, these methods often fail and can make the problem worse. For example, a squirrel trapped in your chimney may chew through the liner, creating a fire hazard.

5. Document the Issue: Take photos of the animal, droppings, or damage for your records. This can help the chimney sweep assess the situation and may be useful if you need to file an insurance claim.

If you’re unsure whether an animal is in your chimney, look for signs like nests, droppings, or unusual smells. For Highlands homeowners, the safest course of action is always to call a licensed chimney sweep. They can provide a free inspection and explain your options without risking further damage or harm to the animal.

How much does animal removal cost in Highlands?

The cost of removing animals from your chimney in Highlands depends on the type of animal, the extent of the infestation, and any necessary repairs. Here’s a general breakdown of what to expect:

- Live Animal Removal: $150–$300. This includes humane removal, cleaning the chimney, and installing deterrents like a chimney cap.

- Dead Animal Removal: $100–$250. If an animal has died in your chimney, the sweep will remove it and clean the area to prevent odors or pest issues.

- Repairs for Damage: $200–$600+. Animals can cause cracks, loose bricks, or damaged liners. If your chimney needs repairs, the cost will depend on the severity. For example, replacing a damaged chimney liner in a Highlands home might cost between $500 and $1,200.

- Preventive Measures: $50–$200. Installing a chimney cap or sealing entry points is a one-time investment that can save you money in the long run.

For Highlands homeowners, the average cost for animal removal and minor repairs is around $250–$400. If your chimney has significant damage, the total could be higher. To get an accurate quote, contact a licensed chimney sweep near you and ask about their animal removal services. Many offer free inspections, so you can understand the full scope of work before committing contact.

Typical Costs for Animal Infestation Removal in Highlands, NJ Chimneys
ServiceCost RangeNotes
Live Animal Removal$150–$300Includes humane removal, cleaning, and basic deterrents
Dead Animal Removal$100–$250Removal and odor treatment
Chimney Cap Installation$50–$200Prevents future infestations
Minor Repairs (Cracks, Loose Bricks)$200–$600Depends on damage severity
Full Relining (Severe Damage)$800–$1,500+Required if animal caused structural issues

Frequently Asked Questions

My chimney smells like ammonia after it rained. Could it be from an animal infestation?

Yes, that ammonia-like smell is often a sign of animal urine or droppings in your chimney. In Highlands, where rain can wash nesting materials deeper into the flue, this odor is a common warning sign. The best next step is to call a chimney sweep for an inspection. They’ll use a camera to check for nests or debris and recommend the safest removal method. Ignoring the smell can lead to worse odors, pests, or even a fire hazard if nesting materials ignite.

Why does my Highlands chimney have birds nesting in it every spring, even after I installed a cap?

Birds are persistent in Highlands due to the abundance of trees and open spaces, and some caps may not be fully sealed or may have gaps where birds can squeeze in. A chimney sweep can inspect your cap to ensure it’s properly installed and has no holes. They may also recommend a cap with a tighter mesh or additional deterrents like spikes. If birds keep returning, the issue might be with the cap’s design or installation, always have a professional check it annually.

I heard scratching in my chimney at night. Is it squirrels, or could it be something else?

Scratching at night is almost always squirrels, especially in Highlands where they’re common near wooded areas like the Highlands Preserve. However, it could also be raccoons or even bats. Never assume it’s harmless, animals in your chimney can cause damage, block airflow, and create fire risks. The safest move is to call a chimney sweep for a camera inspection. They’ll identify the animal, assess any damage, and remove it humanely without risking further harm to your chimney.

My neighbor in Rumson had a raccoon in their chimney. Can I use the same trap they recommended?

No, you should never use a neighbor’s trap or DIY method for your chimney. Chimneys vary in size, material, and condition, and what works for one may not be safe for another. In Highlands, our chimneys often have older masonry that can be weakened by improper removal attempts. Always use a licensed chimney sweep for animal removal, they have the tools and expertise to handle it safely and legally. Plus, some animals are protected by law, so improper handling could result in fines.

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