Cornerstone Air Conditioning Claim Listing Return to Directory Rating (average) (0) Business Genre Contractor, Plbg Heat AC Business Website Address cornerstoneairhawaii.com Business Address, City 1318 Hart St # D, Honolulu ZIP Code 96817 Business Phone Number 8088473639 Business Fax 8088470588 Ratings There are no reviews yet. Please login to leave a review. Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?