Backflow Services Prosper, TX 75078 Contact Name Dobbs, Sherman Business Phone (469) 500-5506 Business Address 16308 Dry Creek Blvd. Counties Serviced Collin, Dallas, Denton, Kaufman, Rockwall, Tarrant Business Service(s) Backflow Testing, New Installations, Service & Repair Business Description Backflow Prevention Assembly Testing and Service. Contact listing ownerSend Message to listing owner Name Email Phone Number Message