I recently moved back to the house where I grew up on a farm. This spring I started noticing bat droppings in one spot on my deck which is along side the chimney for the for the fireplaces. I thought the bats were in the chimney since the fireplaces hadn't been used for decades. I contacted Orkin. They did several thousands of dollars work sealing up all the holes they could find to the attics and put a screen to cover the chimneys in June. The droppings seemed to go away for most of the summer, but they have recently returned. I contacted Orkin again and they sent a guy out to inspect their work. He says the bats are no longer getting in (even though my complaint was never about seeing bats in the house), but they must just be returning to roost on the roof looking for bugs and trying to get back in. So basically I'm out of luck. He suggested setting a bat house up away from my house. I'm wondering if any of you have had a similar experience. Would a bat house a actually improve my situation or would it draw more bats? Hopefully HBOT has some experts on bat control.