Southern Air Mechanical Services LLC, Trenton

The licensed and insured technicians of AllState Mechanical Inc. undergo extensive factory training on an array of air-conditioning and heating systems, equipping themselves with encyclopedic know-how so they can perform factory-authorized repairs on a vast number of makes and models in businesses and homes. To ensure satisfaction, the team backs its work with discounted maintenance agreements. In the rare event technicians can't repair an injured HVAC system, they'll analyze household needs to design a custom climate-control solution replete with easy-to-operate Honeywell digital thermostats, a two-year maintenance agreement, and a lack of hydroelectric turbines in the living room.