Interstate Air Conditioning & Heating started out as a leader in the New York City Metro Area. Due to extreme growth we opened multiple branches throughout the state of New Jersey. Interstate Air Conditioning & Heating specializes in HVAC Repair , Maintenance, and Installation throughout the entire state of New Jersey. Counties that we service include but are not limited to Bergen County, Essex County, Hudson County, Hunterdon County, Middlesex County, Mercer County, Monmouth County, Morris County, Ocean County, Passiac County, Somerset County, Union County, & Warren County. Call us today to speak with an Air Conditioning & Heating professional.