A bat in the living room on a mild November night. Staining on the ceiling, or a faint scratching behind the wall on a warm afternoon. By November, Lynn's bats aren't moving in — they're already settled into attics for hibernation, and they'll stay until spring. In a city of older Victorians, brick blocks, and triple-deckers, a quiet colony overhead is more common than most people realize.

 

Harvey's Animal Evictions LLC is a licensed Massachusetts wildlife removal company based in Wilmington, with our shop in Medford. We inspect bat colonies in Lynn attics, confirm what's there, and plan humane exclusion for the right window — bats are never sealed in, and a hibernating colony is never disturbed into the walls.

 

Signs bats are hibernating in your attic

 

• A bat found in the living space — usually one that took a wrong turn on a milder night when the colony stirred

 

• Droppings (guano) in the attic, often piled below one roosting spot along a ridge or chimney

 

• Brown staining or a greasy rub mark around a small gap at a gable vent, soffit, or chimney flashing — the colony's doorway

 

• Faint scratching or squeaking from the attic or walls on warmer afternoons

 

• A musty, ammonia-like smell from the attic in a closed-up house

 

A bat colony overhead isn't an emergency every night — they're asleep for the winter — but it isn't a wait-until-spring problem either. Guano accumulates all winter under the roost, bats that stir on mild nights can find their way into living space, and the entry points they use in November are the same ones a bigger colony will use in summer. What November is good for is knowing exactly what you have, before the spring rush.

 

Where Lynn bats get in

 

Lynn's housing stock is old and varied — big Victorians in the Diamond District, triple-deckers and two-families through the central neighborhoods, brick apartment blocks downtown, and capes and colonials out toward Lynn Woods. Bats need a gap of only about three-eighths of an inch, and older buildings offer plenty:

 

• Gable and ridge vents — warped or unscreened louvers are the most common bat door

 

• Chimney flashing gaps — where the flashing has lifted from the brick over the years

 

• Soffit and fascia gaps — especially where additions and porches meet the original house

 

• Gaps at roof peaks and dormers — every roofline change leaves small openings

 

• Loose siding and corner boards — a slit behind a board is a doorway to a bat

 

From downtown to the Woods, the pattern is the same: the colony found one small gap, and the whole colony uses it, night after night, season after season.

 

How we handle a bat colony

 

Every job starts with an inspection, which you can book online through our website. We don't give estimates over the phone or online, because the plan depends on what we find: the size of the colony, every entry point, and how much guano and damage is in the attic. Bat work is also timed by the bats' year — hibernation in winter, babies in summer — and Massachusetts protects bats, so the inspection is what sets a lawful, humane plan.

 

1. Inspection — We locate the roost, find every entry point (including the small ones), check the guano and damage, and confirm the season's timing, then give you a clear plan and price before any work starts.

2. Humane exclusion, timed right — Bats are excluded with one-way devices that let them leave at dusk and not get back in — installed in the proper window, when the colony is active and no flightless young are present. We never seal a hibernating colony into an attic.

3. Exclusion and repairs — Once the colony is out, we seal every entry point with durable materials: vent screening, flashing repairs, and soffit and roof-line sealing, down to the last three-eighths of an inch.

4. Cleanup — We can remove accumulated guano and soiled insulation and sanitize the space.

 

See our full bat removal process and our wildlife exclusion and damage repair services.

 

Why Lynn homeowners call Harvey's

 

• Licensed Massachusetts Problem Animal Control agents

 

• Wildlife only — no bugs, mice, or rats; nuisance wildlife is all we do

 

• Exclusion done in the right window — humane, lawful timing, never a colony sealed in

 

• 24/7 emergency service — a bat loose in a bedroom doesn't wait for business hours

 

• Based in Wilmington with our shop in Medford — in Lynn for jobs regularly

 

Lynn bat questions

 

How much does bat removal cost in Lynn?

 

It depends on the size of the colony, the number of entry points, and how much sealing and cleanup the attic needs, so we never quote a price without looking. Every job starts with an inspection — book online through our website, and the inspection fee is confirmed at booking. After the inspection, you get a clear price before any work starts.

 

I found a bat in my house in November — is the whole colony awake?

 

No. In November the colony is hibernating in the attic; on milder nights one bat may stir and take a wrong turn into the living space. Don't seal anything, and don't try to chase it through the house at midnight — open an exterior door or window if you can do it calmly, and book an inspection so we can confirm what's overhead and plan properly.

 

Why can't you just seal the holes now?

 

Because the bats are in there. Sealing entry points with a hibernating colony inside traps them in the attic and walls — they die there or find their way into your living space trying to get out. The humane, lawful sequence is inspection now, exclusion in the active-season window, then permanent sealing once they're out.

 

Once they're out, will bats come back?

 

Not through the same gaps. Bats return to a roost they remember, which is why we seal every entry point we find — including the ones they're not using yet — once the colony has been excluded.

 

Do you handle other animals in Lynn?

 

Yes — raccoons, squirrels, skunks, woodchucks, opossums, birds, and more, plus mole and vole lawn treatment. See the full list on our FAQ page.

 

Book your inspection

 

A bat colony overhead is a spring problem you can get ahead of right now. Book an inspection online, or call 1-800-692-0406 — emergency service, 24 hours a day, 7 days a week.