We get a lot of questions on what our vouchers cover when there purchased through a second party like Living Social or Dealsaver. The quick answer is our maintenance package. What is covered in the maintenance package is unlimited supply vents, one return, and sometimes the dryer depending on voucher. It does not cover cleaning the furnace or coils, does not include the mains or any extra returns above the one that is included. So you understand what returns are, coils, or furnace cleaning look at the pictures below.