Cal-Oso Backflow Services

Company Overview

Obtain licensed backflow prevention devices, evaluation, maintenance, and setup services in Riverside, San Bernardino County, and San Diego. We offer reliable as well as licensed backflow testing solutions. We’re Authorized (#1109590), Protected, and Insured.

Hello, thank you Cal-Oso Backflow Services. Boasting over 6 years of expertise in water management, ranging from underground main-lines and installations to customer valves and backflow systems. We take pride in our work and value our client support. You can trust that you will be satisfied with what we offer. Thank you once more for choosing Cal-Oso Backflow Services.