Chas Roberts creates comfortable living environments for Arizona homeowners by providing quality air conditioning and plumbin ... g services at competitive prices. Since opening in 1942, Chas Roberts A/C & Plumbing has been family owned and operated. Chas and Alice Roberts founded Chas Roberts Air Conditioning in 1942 and the business has been family owned and operated since day one. Today Chas Roberts, the largest HVAC provider in Arizona with eight locations including Phoenix, Scottsdale, Mesa, Queen Creek, Tempe, Avondale, Sun City and Tucson, passes along its buying power to homeowners and backs its service with highly trained personnel and on-line scheduling capabilities. read more