According to our records, this business is located at 6398 S Chestnut Ave. in Fresno (in Fresno County), California 93725, the location GPS coordinates are: 36.6427702 (latitude), -119.7368057 (longitude). Dorans Backflow Service is categorized under Turbidity Instruments, Industrial Process Type (SIC code 3823). Known organization owner is Doran Clark. You can contact the company by phone at (559) 834-1053.