Firebugs set alight wheelie bins during a string of night-time arson attacks in Leyland.
Two homes on Royal Avenue and Forestway both had a total of six recycling bins and two boxes destroyed in the fires.
The incident happened between midnight and 1am on August 22 and the brown bins, blue bins, and green boxes will now need to be replaced by South Ribble Council.
A gang of males, all wearing dark clothing, were seen walking away from the scene. One was wearing a pair of glasses. Anyone with information is asked to contact police on 0845 1253545.