Tri-City Heating & Air-Conditioning, Inc. PO Box 4695 Antioch, CA 94531 Call: (925) 755-COOL (2665) Fax: (925) 777-9152 Lic. 813490 Contact Us We make you feel comfortable in YOUR home and office! Name*Email Address* Phone*How Can We Help?*Human Verification: What is 35 + 4?*EmailThis field is for validation purposes and should be left unchanged.