Cornerstone Air Conditioning 1318D Hart St Honolulu, HI 96817, United States 808-847-3639 [email protected] http://www.cornerstoneairhawaii.com/ Staffed with a team of expert HVAC technicians and the latest in air conditioning resources, Cornerstone Air Conditioning Inc. follows a philosophy of comfort in serving their clients. TheHonolulu contractors approach every job with a focus on quality, and they are committed to helping businesses achieve efficient, affordable cooling. Whether you need new air... read full review »