Sprinkler systems protect buildings and save lives — but only if they are properly maintained.

According to NFPA 25, any sprinkler system containing control valves without electronic supervision should be checked on a weekly basis to make sure that they are in the open position.

Additionally, at least four times each year, a full sprinkler system inspection should be performed by a certified technician.

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When should you inspect your sprinkler system?

Daily (during freezing weather)

Check dry pipe valve rooms or enclosure systems.

Inspect auxiliary drains to prevent freezing.


Check unsupervised control valves.

Check air and water pressure on dry pipe systems.


Test sprinkler alarms on sprinkler systems that do not have electrical supervisory signal service only.

Inspect valves that are locked open.

Every two months

Test supervisory transmitters and water.

Inspect valves that are electrically supervised.

Every six months

Test gate valve supervisory switches and other sprinkler and fire protection system supervisory devices.


Check exposed sprinkler system pipe hangers and sprinkler heads.

Inspect dry pipe valve priming level.

Inspect fire department connections, test water flow on wet sprinkler systems.

Trip-test dry pipe trip system (control valve not required to be fully open).

Test flow of water supply – to be completed only by a qualified contractor.

Every three years

Trip-test dry-pipe valves with control valve fully open – to be completed only by a qualified contractor.

Every five years

Flushing of the sprinkler system is required.

Levitt-Safety can help

With locations across Canada, our team of trained and certified fire inspection experts is here to help!

Fill out the form on this page and a member of our team will contact you to answer any questions you may have!

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