The raid happened in Stoneybank Road, Musselburgh, between February 22 and March 1, and police are now appealing for anyone with information to come forward.
Officers are also investigating a break-in in the town’s Clayknowes Court around 7pm on Thursday, however nothing was stolen.
Inspector Andrew Harborow from Tranent Police Station said: “At this time we are conducting inquiries to establish if both of these housebreakings are linked.”
Those with information can contact Police Scotland on 101.