Dorans Backflow Svc Return to Central California Businesses Directory Dorans Backflow Svc Claim Listing Return to Central California Businesses Directory Description Details Address 6398 S Chestnut Ave City Fresno State California ZIP Code 93725 Phone (559) 834-1053 Listing Category Services NEC - Listings Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?