O.K. Heating & Air Conditioning Address: 4361 Technology Drive, Unit G Livermore, CA 94551 Phone: (925) 337-8319 Email: okheating@sbcglobal.net Website: http://www.okheatingandair.com/ Located in Livermore, CA, O.K. Heating & Air Conditioning has been an established and respected business since 1976. We offer reliable service options for both commercial and residential properties with the most up to date knowledge and experience to handle all types of jobs including work with heat pumps, boilers, air conditioning units and more.