Bat Removal & Bat Exclusion

Bats in attic spaces: signs to look for

The clearest sign of bats in the attic is their droppings, called guano. Look for:

• Droppings (guano) piled near walls, below gaps or in the attic
• Dark stains or rub marks around small gaps in siding or eaves
• Squeaking or rustling in the walls or attic, especially at dusk
• Bats seen leaving the roofline at dusk

Bat removal by exclusion: how we get bats out humanely

Bat exclusion uses one-way exits: bats can fly out at night but can't get back in. We fit the exits at the openings bats are using and seal the other gaps.

Once the bats are gone, we remove the exits and seal those openings too, with materials such as hardware cloth and metal flashing. Bats are never killed or trapped.

When bats can be removed

Bats can be excluded outside the spring and summer season when young bats can't fly yet. Sealing a roost while flightless pups are inside would trap them, so we time each exclusion to avoid that.

If you find bats during that season, call anyway. We'll inspect, explain the timing, and plan the work.

Bat guano cleanup

Bat guano should be cleaned up after the bats are out, with proper protection. We remove droppings and soiled material as part of attic & crawl space cleanup.

Bats we see in San Mateo County homes

Common examples in local homes include the Mexican free-tailed bat and the big brown bat. Both roost in attics, walls and under eaves, and both are handled the same way: exclusion, then sealing.

Bat removal near you in San Mateo County

We handle bats in attics, walls and eaves on the Coastside and across the Peninsula, including bat removal in Half Moon Bay, bat removal in Pacifica, bat removal in San Mateo, bat removal in Redwood City, bat removal in Menlo Park and bat removal in Burlingame. See all service areas.

Bats are protected in California, so a pest company should never poison, trap or kill them. If someone offers that, look elsewhere. Exclusion is the legal, humane way to get them out for good.