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Squirrels

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Squirrels are the attic animal people underestimate, because they are familiar in the yard and easy to find charming until the wiring is chewed. They are rodents with the legal status of wildlife, which is an awkward combination: you cannot treat them with a pest control product, and in much of the country you cannot simply trap one and drive it somewhere else. UC IPM notes that tree squirrels are classified as game mammals by the California Fish and Game Code, and that releasing any tree squirrel elsewhere is illegal unless a proper permit is issued by the state wildlife agency beforehand.

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The damage pattern is specific. UC IPM describes squirrels chewing their way into wooden buildings or invading attics through gaps or broken vent screens, and sometimes gnawing on telephone cables. Once inside they keep gnawing, because a rodent's incisors grow continuously, and the things they gnaw include framing, vent ducting, plumbing lines and electrical insulation.

The calendar drives the work. UC IPM describes tree squirrels producing one or two litters per year of three to five young, in late winter or spring, which means an attic exclusion carried out at the wrong moment separates a mother from a dependent litter. Knowing which species you have, and what season it is, is most of a competent plan.

Gray, fox, red and flying squirrels do not behave the same way

Squirrel is a category, not a species, and in the United States the category covers animals with different sizes, different active hours and different legal treatment state by state.

  • Eastern gray squirrel: the common suburban attic squirrel across much of the East and Midwest, active in daylight and a confident climber.
  • Eastern fox squirrel: larger, widespread, and identified by UC IPM as the most serious pest among California's tree squirrels.
  • Red squirrel: smaller and louder, common in northern and mountain regions, and notorious for caching food and shredding insulation.
  • Flying squirrel: nocturnal and colonial, so the noise is after dark and the numbers in an attic can be far higher than expected; UC IPM notes it is not considered a pest in California.
  • Ground squirrels and chipmunks are a different problem entirely, showing up as burrows beside foundations, patios and retaining walls rather than in a roof.
  • Legal status varies by species even within one state: UC IPM notes eastern fox squirrels causing property damage may be controlled by California property owners, while gray squirrels require a permit from the state wildlife agency.

Daytime scratching, chewed fascia and where the entry usually is

Squirrel evidence is distinctive once you know what separates it from a raccoon above and a mouse below. It is fast, light, and almost always in daylight.

  • Quick scampering and rolling sounds in the attic in early morning and late afternoon, rather than the heavy movement of a raccoon at dusk.
  • A clean round or oval hole chewed through fascia, soffit, a gable end or a rotted roof edge, with fresh pale wood at the margins.
  • Broken or pushed-in attic and gable vent screens, which UC IPM lists among the routes squirrels use to invade attics.
  • Leaves, twigs, shredded bark and insulation gathered into a nest in a corner of the attic or on top of a ceiling joist.
  • Chew damage to wire insulation, plastic vent ducting and plumbing lines, including the telephone cables UC IPM mentions.
  • A well-worn route along a branch, a power drop, a fence top or a downspout onto the roof, visible as bare or polished bark and marks on the trim.
  • Nut shells, acorn caps or pine cone debris accumulating in a gutter, on a flat roof or in the attic itself.

Game animals, permits and why relocation is usually not allowed

The legal status of squirrels surprises people who assume a nuisance animal has no protection. UC IPM states that tree squirrels are classified as game mammals by the California Fish and Game Code, that eastern fox squirrels causing property damage may be controlled by property owners while gray squirrels require permits from the California Department of Fish and Wildlife, that it is not legal to use poison baits, and that releasing any tree squirrel elsewhere is illegal unless a proper permit is issued beforehand. Other states classify tree squirrels as game animals with seasons as well, which is why a squirrel in an attic is a wildlife matter rather than a pest control matter.

Relocation rules are the part most likely to catch a homeowner out. New York states that it is illegal for a homeowner to move or relocate an animal off their property, and that residents cannot release a trapped animal in a park, on state land or anywhere other than where it was captured. Virginia states that it is illegal in the state to trap and relocate an animal to another area. The lawful path in a great many places is exclusion, which is fortunate, because exclusion is also the only approach that solves the problem rather than opening the space for the next squirrel. Confirm the rule with your own state wildlife agency before you buy a trap.

Chewed wiring, soaked insulation and damage you do not see

The reason to treat a squirrel in the attic as urgent rather than annoying is what continuous gnawing does to the systems running through that space. Wiring insulation stripped from a conductor in a void full of dry nesting material is a fire risk that no one can assess from the hatch; it needs a licensed electrician to inspect and repair. Plastic vent ducting chewed open dumps bathroom moisture into the attic, and plumbing supply lines have been gnawed through often enough that it is a recognized cause of ceiling leaks.

The insulation itself is the quieter loss. Trampled, tunneled, soiled and used as nesting material, it stops performing, which shows up on a heating bill long before anyone connects the two. Nesting material packed into a soffit also blocks the intake ventilation a roof depends on, which in cold climates contributes to ice damming and in hot ones bakes the attic. When you get a quote, ask explicitly whether insulation assessment and replacement is included or excluded, because that is often the larger half of the real cost.

Exclusion with a one-way door, then screening everything else

The method that works is to make the building impossible to reenter and then let the animals leave on their own. Every potential opening is sealed first, and a one-way device is fitted over the single remaining active entry so squirrels can exit but cannot get back in. UC IPM identifies sheet metal or quarter-inch wire hardware cloth as suitable materials for closing entrances, which is the point: anything a squirrel can chew is a temporary repair.

Confirming the attic is empty before the last hole is closed is the step amateurs skip. UC IPM describes a simple test, plugging openings with newspaper and checking whether it is removed, which tells you whether anything is still inside and trying to get out. Professionals use the same logic with tracking material and monitored one-way devices over several days. Sealing early traps animals inside, which produces both an animal welfare problem and an odor problem in a ceiling.

Finish with the approach route, not just the hole. Cutting limbs back so the roof cannot be reached in a jump, fitting metal rather than plastic vent screens, capping the chimney, and repairing rotted fascia and soffit before it becomes chewable removes the conditions that made your house the attractive one on the block. Where fruit and nut trees, feeders or an unsecured bin keep a dense population in the yard, the building will keep being tested.

Litters set the calendar for an attic exclusion

UC IPM describes tree squirrels producing one or two litters per year of three to five young, in late winter or spring. That is the single most important scheduling fact in squirrel work, because a one-way door installed over an entry while a litter is inside separates the mother from young that cannot yet leave. The result is young dying in the ceiling and a mother chewing a fresh hole in the roof to reach them, which turns a contained job into a repair and an odor problem.

A competent operator checks for young before fitting anything, removes a litter by hand where one is found, or postpones the exclusion until the young are mobile. Ask that question directly. Autumn is the other predictable season, when squirrels look for winter shelter and test every weak point on a roofline, which makes late summer the sensible time to inspect the fascia, soffit, vents and chimney and fix what is already open. In northern climates the animals do not hibernate, so a winter attic occupation is entirely normal and should not be waited out.

What changes a squirrel removal quote, and how LokalMatch fits in

Squirrel jobs are priced on the building work far more than on the animals. The drivers are how many openings need screening and in what material, the height and pitch of the roof and how access is achieved, whether rotted fascia or soffit has to be rebuilt before anything can be fastened to it, how many return visits the one-way device needs, whether young are present, whether branches have to be cut back, and whether insulation removal, replacement and an electrical inspection of chewed wiring are included. Ask for the openings to be listed individually and for the repair material to be named.

LokalMatch is the starting point. You describe it once: when you hear the noise and where, what you can see chewed from the ground, how the roof is reached, and whether you think there are young. Wildlife and pest companies serving your area receive that request, and the interested ones get in touch with you. Pros pay for the requests they receive, and homeowners use the service free of charge. LokalMatch does not perform wildlife control, does not set prices, and does not vet, rank or recommend any company, so verifying the state wildlife license, the insurance and what your state allows is your part.

Squirrels: frequently asked questions

Can I trap a squirrel and release it in a park?

In most places, no. UC IPM states that releasing any tree squirrel elsewhere is illegal unless a proper permit is issued by the California Department of Fish and Wildlife beforehand, and that tree squirrels are classified as game mammals under the state Fish and Game Code. New York states it is illegal for a homeowner to move an animal off their property or release it in a park or on state land, and Virginia makes trapping and relocating an animal to another area illegal. Check with your state wildlife agency.

Is there a poison for squirrels in the attic?

No, and using one would be both illegal and a bad idea. UC IPM states plainly that it is not legal to use poison baits on tree squirrels. Beyond the law, a poisoned animal dies wherever it happens to be, which in an attic means inside insulation or a wall cavity, producing weeks of odor and flies. Exclusion with a one-way device and permanent screening is the approach that is both lawful and effective.

How do I know it is squirrels and not rats or a raccoon?

Listen to the clock. Squirrels are active in daylight, particularly early morning and late afternoon, and sound fast and light with rolling noises as they move stored nuts. Raccoons are heavy and deliberate and work at dusk and before dawn. Rats are generally quieter and more constant at night. Flying squirrels are the exception, being nocturnal and colonial, so a lot of light nighttime activity in a northern or eastern attic can still be squirrels.

What should the entry hole be sealed with?

Something a rodent cannot chew. UC IPM identifies sheet metal or quarter-inch wire hardware cloth as suitable materials for closing entrances. Wood, plastic vent covers, foam and screening that a squirrel can get its teeth into are temporary at best. Fasten repairs into sound framing, since fascia and soffit that has already rotted will not hold, and replace flimsy plastic roof and gable vents with metal while you are up there.

When is the wrong time to seal the attic?

While a litter is inside. UC IPM describes tree squirrels having one or two litters a year of three to five young, in late winter or spring, so exclusion in that window can separate a mother from dependent young. That leaves young dying in the ceiling and a determined adult chewing a new hole. A competent operator checks for young first, removes them by hand if present, or schedules the exclusion for when they are mobile.

Sources

  1. UC IPM Pest Notes: Tree Squirrels
  2. New York State DEC: Remove or Take Nuisance Animals Legally
  3. Virginia Department of Wildlife Resources: Problems with Raccoons

Written by the LokalMatch editorial team. Last reviewed September 21, 2026. How we write and check our guides

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What affects the cost of squirrel removal

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Type of pest or animal
  • How widespread the problem is
  • Size of the home and number of units affected
  • Treatment method
  • Number of follow-up visits
  • Exclusion work, such as sealing gaps or installing barriers

How to compare wildlife removal companies before you hire

  • Choose a company that inspects first and identifies the pest before recommending treatment.
  • Ask whether they are licensed to apply pest control products in your area.
  • For wildlife like raccoons, squirrels or birds, look for a company that uses humane removal and seals entry points.
  • Ask how they'll keep children, pets and food safe during and after treatment.
  • Get the treatment plan in writing, including follow-up visits and what happens if the problem comes back.

Questions to ask wildlife removal companies before you hire

  • What pest do you think this is, and how did you identify it?
  • Are you licensed to apply pest control products in my area?
  • What products or methods will you use, and are they safe around children and pets?
  • How do I need to prepare my home before treatment?
  • How many visits are included, and what happens if the problem comes back?
  • Will you seal entry points so the problem doesn't return?

When to call a pro for squirrel removal

  • Droppings, gnaw marks or scratching noises in walls or the attic
  • Bites or small blood spots on bedding that could point to bed bugs
  • A wasp or hornet nest near a door, deck or play area
  • An animal living in the attic, chimney or under a deck

Squirrel removal permits and local rules

Some squirrel removal work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

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