Bat Removal & Exclusion in Brunswick, OH
Droppings on the new siding under a gable vent, found in a house that is barely a few seasons old? Bats need only a finger-width gap — and Ohio law decides when they can be shown the way out. Call us and tell us about the job — we will confirm the local crew for your county before any work starts.

Bats in your Brunswick home
Brunswick surprises people with bats because the houses are new and the landscape was recently fields. But open farm country, ponds and creek corridors are rich insect ground, and big brown bats — Ohio's main house bat — hunt it nightly. What they need from a house is minimal: a gap at a gable or ridge vent, behind fascia, or at flashing, about the width of a finger. Fast construction leaves exactly those gaps, and a colony can be established in a Brunswick home before the landscaping has matured.
Ohio regulates bat removal more tightly than any other service on this site. Exclusion is the only legal method, only a licensed Commercial Nuisance Wild Animal Control Operator may do it for hire, and the calendar has two hard blackouts. Legal windows are April 1–May 15 and August 1–Oct 15. A Brunswick bat job is therefore mostly a timing job — and starting the conversation early is worth real money and stress.
The blackout windows, in plain terms
From May 16 through July 31, exclusion is prohibited when five or more bats are present, without prior written permission from the Chief of the ODNR Division of Wildlife — this is maternity season, when pups cannot fly and would be trapped inside by any sealing. From October 15 through March 31, exclusion is prohibited for any bats without that same written permission, because big brown bats hibernate inside Ohio attics and a winter eviction is both illegal and lethal to the colony. No reputable crew will offer to "just do it anyway" in July or January.
New house, old problem: how bats enter Brunswick builds
The entry points in Brunswick's newer homes are construction features, not decay: ridge vents with open ends, gable vents screened lightly or not at all, gaps behind fascia where gutter work left a seam, and siding transitions at gables. Our crew finds the colony's main exit by watching the house at dusk — bats leaving a new Brunswick home at sunset are easy to spot against pale siding — and then audits the whole envelope, because sealing nine gaps and missing the tenth accomplishes nothing.
Call before the window closes
The spring window is six weeks long, and every colony discovered over the winter competes for it. An inspection in late winter — allowed at any time of year — establishes the colony's size and exits and lets our crew stage the exclusion for the first legal days of April. Find bats in June and the same logic books the job for August 1, before pups are flying well. The homeowners who lose a season are the ones who call in mid-May or late October hoping the dates are flexible. They are not.
Guano, rabies and the bat indoors
Under a colony, droppings accumulate in wall voids and attic insulation; dried guano can harbor the fungus behind histoplasmosis, so cleanup uses proper protection and containment rather than a shop vacuum. On rabies, be precise: bats are Ohio's most frequently confirmed rabid animal, ahead of raccoons, skunks and foxes. A bat in a bedroom — especially where someone slept, or a child or pet was present — should never be released out a window or handled; close the door, call us, and speak with your doctor or health department about exposure. Ohio rules even govern reporting where a bite or exposure may have occurred.
How the exclusion itself works
In a legal window, our crew seals every secondary gap on the house with materials matched to new siding and trim, then installs a one-way valve at the main exit. The colony leaves at dusk to hunt over Brunswick's ponds and fields and cannot re-enter; over several nights the attic empties. Exit watches confirm it, the valve is removed, and the last gap is sealed permanently. The bats are not harmed — they return to natural roosts — and the house is closed against the next colony, which in growing, insect-rich Brunswick is the outcome that matters.
Common bat questions in Brunswick
My Brunswick house is new — how did bats get in?+
I found bats in July. Do I really have to wait until August?+
Can bats be removed from my attic in winter?+
What are Ohio’s legal bat exclusion dates?+
How much does bat exclusion cost in Brunswick?+
Other Brunswick problems that come with bats
Our wildlife crew handles these closely related problems — the ones that most often turn up with a bat issue.
Got more than bats in Brunswick?
The vent and roofline gaps a bat colony uses in a new Brunswick home are the same gaps squirrels find in fall. See everything we handle locally on the Brunswick wildlife removal hub, or jump to Ohio wildlife removal.
Serving all of Medina County
Brunswick is one part of Medina County. See wildlife removal in Medina County, OH for the county-wide picture — the animals we get called about most, and the other towns we cover.
One call to your Brunswick bat crew
Brunswick's fields and ponds feed bats all summer, and its new attics shelter them. The work is to part the two legally, in season. Call us and tell us about the job — we will confirm the local crew for your county before any work starts.
- Local to Medina County. ODNR-compliant handling — call to ask about licensing and insurance.
- Timed, one-way exclusion. Bat valves in the April–May or August–October windows, then permanent sealing of every construction gap once the colony is out.
- Done right. Removal, exclusion and cleanup.