H2O Fire Protection is a Glendora-based fire protection contractor founded in 2007. It provides NFPA 25 and Title 19 inspections of fire sprinkler systems, system design, leak repairs and maintenance. The firm also installs and inspects fire hydrants, underground and overhead fire mains, and backflow prevention devices and enclosures. It serves commercial and residential properties across Los Angeles, Orange, Riverside and San Bernardino counties. It holds California C-16 Fire Protection Contractor licence 897997 (CSLB).