How often should my sprinkler system be inspected?

Inspection frequencies are governed primarily by NFPA 25: Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems. Here is a general breakdown:

Weekly / Monthly:

• Control valves (to confirm they are open and not tampered with)
• Gauges on wet and dry systems
• Fire department connections for accessibility

Quarterly:

• Alarm valves and their trim
• Hydraulic nameplates
• Supervisory signal devices

Annually:

• Full inspection of all sprinkler heads
• Main drain test
• Water flow alarm tests
• Check valves and backflow prevention associated with the system
• Gauges (replaced or calibrated every 5 years)

Every 3 Years:

• Dry pipe systems — internal inspection of piping for corrosion and debris
• Antifreeze systems — testing of antifreeze solution concentration

Every 5 Years:

• Obstruction investigation (internal inspection of pipes)
• Sprinkler heads installed in harsh environments (high temperatures, corrosive atmospheres)

Every 50 Years:

• Sprinkler heads manufactured before 1920 must be replaced
• Sprinkler heads that have been in service for 50 years should be sample-tested

We handle all scheduling and help keep you compliant.