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Spartan Animal & Pest Control

Humane Animal And Pest Control In MA

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How Bat Removal Practices Are Evolving for Safer Homes

September 7, 2026 by Spartan Animal & Pest Control

Bats in the wallBats usually make themselves known before you ever spot the colony, often as a scratching, fluttering sound above the bedroom ceiling at dusk or a brown stain creeping across the attic sheathing.

Bat removal has changed significantly over the past decade, and a job handled today looks nothing like the mothballs-and-poison advice homeowners used to get. Knowing how professional bat removal works is what separates a lasting solution from a temporary fix.

Key Takeaways

  • Massachusetts law prohibits evicting a bat colony during the June and July maternity season, when flightless pups would be trapped inside and die.
  • One-way doors are the only legal removal method in the state, and eviction is allowed only in May and from August 1 through mid-October.
  • Guano left behind keeps releasing fungal spores and breaks down insulation and wood.
  • Professional bat removal covers the whole sequence from inspection and one-way exclusion to sealing every entry point and cleaning up after the colony.

Why Bats End Up in Your Home

Attic bat removal is one of the most common animal control calls we get across the South Coast and Cape Cod. Attics stay warm and quiet, which is just what a colony needs to raise its pups, and once bats settle in they return to the same roost year after year.

The frustrating part for homeowners is how little space a bat needs, since a gap as narrow as half an inch is enough for one to slip inside. The spots worth checking first are ridge vents, chimney flashing, unscreened attic vents, and the rotted eaves and warped siding, which are also common on older homes in this area.

A thorough inspection looks for tells that are easy to miss on your own, like the dark greasy smudge around a hole where bats squeeze through or the small cones of guano piled on the siding directly below it. Bat activity climbs in late spring, when females gather into maternity colonies to give birth, and by late summer the young are flying on their own and the colony starts to break up ahead of winter. That timing decides everything about how and when a bat infestation can legally be handled here.

Are Bats in the Attic Actually Dangerous?

The honest answer is that a single bat passing through is usually more startling than dangerous, but a colony living in your attic is a different situation. Before anything else, no one in the house should try to handle a bat with bare hands due to the risk of rabies. Anyone who has had direct contact with a bat, or wakes up with one in the room, should wash the area and get medical advice right away instead of brushing it off.

Guano is a slower problem, and as it piles up and dries out, the dust can turn into a respiratory hazard when disturbed, which is an important reason why cleanup is not a step to skip. A colony can also bring in secondary pests such as bat bugs and ticks, so droppings are not the only thing left behind.

Why One-Way Exclusion Beats DIY Bat Control

Ultrasonic gadgets, mothballs, and chicken wire sold online for bat control don’t work, and finding every hole a colony uses takes a full, careful exterior inspection.

In Massachusetts, bats can legally be evicted only in spring and late summer, and never during the June and July maternity season, when flightless pups get sealed inside. Winter is off the table too, since big brown bats hibernate in local attics and would be trapped when they wake. Trying to rush a bat exclusion in the wrong month is both illegal and cruel.

Humane bat removal starts with a full inspection of every active entry point. One-way doors go up next, letting bats leave at night but blocking their return. They stay in place several nights, including a few consecutive nights of decent flying weather, so the whole colony clears out before anything gets sealed.

What Proper Bat Removal Looks Like

Once the colony is out, bat-proofing the home means sealing every gap down to half an inch with materials that will hold. Solid bat prevention comes down to closing the openings a colony was already using along with the ones it would have found next. Which is why the final walk-through matters as much as the first inspection.

The cleanup afterward matters as much as the removal. Guano eats into insulation and carries harmful spores, so contaminated insulation gets stripped out. The area treated as part of safe bat removal from the house. Skipping it leaves the health risk and the smell behind.

What to Ask Before You Hire a Bat Removal Company

A few direct questions tell you most of what you need to know, and they are worth putting to any of the wildlife removal services you are comparing.

bat lying in the wall at night

  • Ask whether the company is licensed and insured. Bat work in Massachusetts is regulated, and an uninsured crew leaves you exposed if something goes wrong on your roof or in your attic.
  • Confirm that bat removal is done with humane one-way exclusion. That is both the legal standard in the state and the only approach that actually clears a colony for good.
  • Find out whether sealing every entry point is included in the price or billed separately, because exclusion without sealing simply invites the next colony back in.
  • Ask how guano cleanup and sanitation are handled, since that work is separate from the exclusion itself. A company that treats cleanup as an afterthought tends to leave contaminated insulation and lingering odor behind.
  • Check whether the work is guaranteed, and ask about waste disposal. The follow-up inspection so you know exactly what the full job includes before you commit.

Schedule a Bat Inspection With Spartan

If you think bats have moved into your attic, the first step is a real inspection. At Spartan Animal & Pest Control, Corey Davis handles every bat removal job himself. From the first walk-through to the final check that confirms every entry point is sealed. Call (508) 504-9164 or schedule a bat inspection, and Corey will take a look.

Filed Under: Animal Control

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288 Hersom Street New Bedford, MA, 02745
508.504.9255
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Animal Control

  • Bat Removal
  • Bird Removal
  • Raccoon Removal
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Google Rating
5.0
Spartan Animal and Pest Control
Spartan Animal and Pest Control
5.0
Chelsea F
Chelsea F
14:21 16 Nov 22
Very professional I called for an appointment he was here the next day with everything needed. He understood how petrified I was over the rodent issue we were hearing in our walls. He was able to find and close up any possible outside entrances and placed outside poison and baits inside with more poison. He came 3 more times for check up and addressed my concerns and knock on wood he was right nothing has returned since. His work and prices are so worth it.
Elaine DaCosta
Elaine DaCosta
17:24 24 Oct 22
Corey showed up at the appointed time. Very friendly and thorough. He answered all the questions that I had. He explained to me exactly what he was doing and why. I’m very happy with the service.
Anne Rymszewicz
Anne Rymszewicz
20:19 14 Sep 22
I Called Corey Tuesday evening and he was here at 9:30 the next morning for a wasp problem in and out of our home. This is our second time using him as the first time was for a mice issue and after his visit, we have been mice free for well over a year now. His knowledge of these critters is amazing, knowing their detailed habits. Wishing I could give a rating over 5 Stars. Look no further for any time if removal of extermination - you will find no better person for the job.
Beth Squires
Beth Squires
22:34 24 Aug 22
Corey was excellent! He is responsive, professional, and honest. His prices are much better than other local pest services. I would highly recommend!
Linda D
Linda D
02:58 21 Aug 22
Corey was punctual and polite.He explained the procedure then eradicated the problem. I highly recommend this company.
Heidi Stucki
Heidi Stucki
10:37 12 Aug 22
Punctual and a reasonable price, I would recommend Spartan to family and friends!
Michael Duclos
Michael Duclos
21:09 03 Aug 22
I had a wasp nest somewhere below my deck, bothering the family in the swimming pool. No way I was attempting to find the nest myself without a bee suit and flamethrower, so I called Corey at Spartan. He went under there armed with only a flashlight, found the nest and took care of it! Not only was he prompt, fast, efficient and effective, but the guy had guts of steel. Hoping to never encounter any more killer bees, rabid raccoons, attacking ants, or any other predators, but if I do, I’m glad I know I got Corey on my side!
Randy Lauderdale
Randy Lauderdale
16:31 13 Jul 22
Called Corey on Sunday about a yellow jacket nest removal. He go right back to us on Sunday! Set up appointment. Corey confirmed and showed up right on time and quickly took care of the nest. Great service! Highly recommended
Eugene Karabanov
Eugene Karabanov
13:26 11 Jun 22
Absolutely fantastic service, quick to respond, knowledgeable, and stands by his work. Corey is a gem. Highly recommended.
BILLY ARNOLD
BILLY ARNOLD
19:49 10 Jun 22
As usual, Corey was on time and very conscience. He checked for the problem and got right to work on the solution immediately. I'll always call Spartan for any pest control needs.
Kawaii Kristina
Kawaii Kristina
18:57 07 Apr 22
We had a squirrel running around the attic and walls of our new home. After calling a few pest control places in the area, we decided on Spartan Pest Control as they had the most reasonable price, and fast friendly customer service. The owner is extremely personable, polite, and thorough. He uses humane traps, and guarantees his work for 3 years. I would definitely use them again!
Lisa Geraghty
Lisa Geraghty
19:01 03 Feb 22
Corey is so friendly and professional. His rates are fair. We had bats and mice to contend with and he was very thorough. I would highly recommend Spartan Pest Control. It was an absolute pleasure dealing with Corey.
Jennifer Zall
Jennifer Zall
01:20 31 Jul 21
Corey is very responsive, professional and friendly. We needed help getting rid of carpenter ants, spiders and a sizable wasps nest. He came right out and took care of all that for us. I highly recommend him for all animal and pest needs! We are very happy with his services.
Joanne Bento
Joanne Bento
16:26 13 Jul 21
Corey did an outstanding job at trapping a rat in my garden. Was trapped within 4 hours of him setting the trap. Very knowledgeable about wildlife. Highly recommend him.
David Barrett
David Barrett
19:52 26 May 21
I cannot recommend Spartan Animal and Pest Control high enough. Cory, the owner, was very professional, articulate and extremely knowledgeable. He did a superb job. Spartan also installs chimney caps and I had my chimneys capped as well. I hope I never have a pest problem again but if I do I will call Spartan without hesitation.
Lee Marie
Lee Marie
21:48 23 Mar 21
Prompt, efficient, personable.We had a pretty bad squirrel problem, and they got rid of them all. What i really liked was that they use humane means.I would definitely use them again.
Michael Brangwynne
Michael Brangwynne
21:33 07 Dec 20
Outstanding job. Moved his schedule around to come sooner than later. Very good businessman that was very professional and worked fast. Very knowledgeable and explained what he was doing with the service as he did it. Very reasonable price and overall great experience. Highly recommend.
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