Bat Removal & Exclusion in Roswell, GA

Bats in your Roswell home

Water makes insects, and insects make bats. The Chattahoochee along Roswell's southern edge, Vickery Creek in its ravine and the many smaller drainages between them produce a steady supply of night-flying insects, and the bats that feed over those waters need somewhere warm and sheltered to spend the day. An attic, a gable vent, a soffit void or a disused chimney in a nearby house fits that need perfectly. Unlike a squirrel or raccoon, a bat colony is quiet — the most reliable sign is guano on the ground or a ledge directly below where they roost.

Bats are handled differently from every other attic animal, and the reason is the calendar. They're protected and beneficial, so the job is exclusion — getting them out alive — rather than extermination. And for several months each year a colony is raising pups that can't fly. Seal the exits at the wrong time and those pups are trapped inside a Roswell wall. A licensed Fulton County pro checks the season first, then runs the work in a set order so every bat leaves alive.

April 1 to July 31: the maternity blackout

From April 1 through July 31, Georgia's bat colonies are birthing and nursing young that can't fly yet, and exclusion is avoided. Close the openings in that stretch and the adults get out while the pups stay behind and die — creating an odor problem, a guano hazard and a protected-species violation at the same time. Where there's no health hazard, the bats are left in place until the blackout ends. Georgia DNR does allow exclusion inside the window when a licensed Nuisance Wildlife Control Operator carries it out, but the safe default is to inspect now and schedule the exclusion for early spring or for late summer into fall.

Guano and histoplasmosis

A colony that uses the same roost for months leaves a pile of droppings that soaks into insulation and stains whatever is under it. The serious concern is the fungus Histoplasma: dried guano can carry its spores, which become airborne when disturbed and can cause the lung infection histoplasmosis. If the guano can be removed, it generally should be, and it's handled as contained biohazard work. That said, a guano cleanup doesn't automatically mean replacing all of the attic's insulation — a good pro tells you what's actually needed.

Bats don't chew — they find gaps

A bat doesn't make holes; it uses ones that already exist, so a Roswell roost can go unnoticed for a long time. Common entries are gable vents, ridge vents, gaps behind fascia boards and loose trim, and the flue of an uncapped chimney — the kind of openings the historic district's older homes have in abundance, and that construction gaps provide on newer houses. Some of those openings are barely the width of a finger. Every one must be found, because if one is missed the colony simply shifts to it.

How exclusion actually works

The method never traps a bat. Once the active exits are identified, the pro installs a one-way device — a bat valve — on each one, so bats can drop out at dusk to feed over the creeks but can't get back in. A typical job takes two or three visits: one to set up, time for the colony to leave, a visual check to confirm they've vacated, then permanent sealing. Some small roosts can be handled in a single day. Only after the roost is empty is the guano cleaned up.

The mistakes that make it worse

The most common error is a homeowner finding the entry and caulking it shut. In maternity season — or any time before the full colony is out — that traps bats inside the house, turning a manageable roost into a dead-animal job with legal exposure. Store-bought sprays and ultrasonic devices don't move a colony either, and mothballs should never be used for an animal problem. The rule that works year-round: inspect first, then exclude only when it's safe.