Contact Us

The Comfort Systems USA, Southwest Corporate Headquarters is conveniently located near I-10 in Chandler, Arizona. Our Southern Arizona office is located just a few miles east of I-10 in downtown Tucson.

CSUSA SW-Chandler (Headquarters)
6875 W. Galveston Street
Chandler, AZ 85226
Main: (602) 437-4428
Fax: (602) 437-0536

CSUSA SW-Tucson
2555 N. Coyote Drive, Suite 108
Tucson, AZ 85745
Main: (520) 628-8640
Fax: (520) 628-8683

CSUSA SW-Northern California
5046 Commercial Circle, Suite E
Concord, CA 94520
Main: (925) 827-0578
Fax: (925) 827-9578

CSUSA SW-Southern California
4189 Santa Ana Avenue, Suite D
Ontario, CA 91761
Main: (909) 390-6677
Fax: (909) 390-6648

CSUSA SW-Las Vegas
3275 Ali Baba Lane, Suite 502
Las Vegas, NV 89118
Main: (702) 798-6510
Fax: (702) 798-6520

Chandler Office Hours:
Monday - Thursday: 7:00am to 4:30pm
Friday: 7:00am to 1:30pm

For service,
24 hours a day,
7 days a week,
call the following dispatch numbers:

Phoenix
(602) 437-4428

Tucson
(520) 628-8640

Northern California
(925) 827-0578

Southern California
(909) 390-6677

Las Vegas
(702) 798-6510