509 Fire Systems is a Spokane-based life safety contractor providing fire sprinkler and fire alarm services across the Spokane region of eastern Washington. Sprinkler work covers inspections, five-year inspections, backflow services, private hydrants and fire pumps, while alarm work covers design, installation, inspection and central station monitoring. The firm also services and installs portable extinguishers and offers a 24-hour service line. It holds a Washington State Patrol fire sprinkler system contractor licence (Level I&T, inspection and testing) and is registered with Washington L&I (509FIFS768OK).