Here to survey the property to collect information on how many systems as well as type of systems for quarterly preventative maintenance contract. Property has a single rooftop package unit. This unit is a gas furnace with air conditioning. Also contains an economizer. System contains 3 air filters (1-14x25x2 2-15x20x2). Access roof in back of the building with ladder or if during the day sprinkler room is accessible to get to built in ladder with bilco roof hatch. Attached are pictures of the unit. The office will follow up with pricing on quarterly preventative maintenance for system. This package will include heating maintenance/tune-up with filters, air conditioning maintenance/tune-up with filter and 2 filter changes one between each maintenance.