Fire Watch for Sprinkler Impairment: Step-by-Step Compliance Checklist

When your sprinkler system goes down — whether from a ruptured pipe, a valve shutdown for maintenance, or a system failure during testing — NFPA 25 does not give you time to figure out the process. The process is defined. The steps are sequential. And the clock starts the moment the impairment is identified.

This checklist walks you through every required action from the moment a sprinkler impairment occurs to the moment the system is verified and restored to service. It is anchored to NFPA 25, Chapter 15 — the standard that governs impairment management for water-based fire protection systems — and structured around the actual sequence a property manager, facility director, or impairment coordinator must follow to maintain compliance.

Print it. Save it. Review it before you need it. The worst time to learn this process is when the sprinkler system is already offline.

Step 1 — Identify and Classify the Impairment

The first action is to determine what you are dealing with. NFPA 25 distinguishes between two types of impairments, and the classification affects how quickly the rest of the process must move.

Emergency impairment: An unplanned event — a ruptured pipe, a system discharge, an equipment failure, a water supply interruption. Emergency impairments require immediate action. There is no advance planning window.

Preplanned impairment: A scheduled shutdown for inspection, testing, maintenance, or system alteration. Preplanned impairments must be authorized by the impairment coordinator before the system is taken offline.

Determine which type applies. If it is an emergency, move to Step 2 immediately. If it is preplanned, the authorization and notification steps should have been completed before the work began.

Step 2 — Activate the Impairment Coordinator

NFPA 25 requires every building with a water-based fire protection system to have a designated impairment coordinator. This is the person responsible for managing the entire process — from notification to restoration.

If you do not have a designated impairment coordinator, the property manager or facility director is the default. Regardless of title, this person must have the authority and access to execute every step on this list.

The impairment coordinator's immediate actions include determining the scope and expected duration of the impairment, identifying all areas of the building left unprotected, and inspecting those areas for increased fire risks — combustible storage, active hot work, occupied spaces without alternative detection.

Step 3 — Tag the System

NFPA 25 requires a physical tag impairment system. Tags must be placed at each fire department connection, each system control valve, and any other location required by the AHJ.

The tag communicates to everyone on-site — including responding firefighters — that the system is not operational. Do not skip this step. Do not use informal signage. The tag stays on until the impairment coordinator confirms the system has been restored and verified.

Step 4 — Notify the Required Parties

Notification is not optional, and under the 2026 edition of NFPA 25, fire department notification is now explicitly required for both preplanned and emergency impairments.

Parties that must be notified include the Authority Having Jurisdiction — your local fire marshal or fire prevention bureau, the building's insurance carrier (check your policy for specific impairment notification requirements), building occupants and tenants in the affected areas, the alarm monitoring company, and any fire protection contractor involved in the repair or maintenance.

Document every notification — who was contacted, when, by whom, and what was communicated. This record becomes part of the impairment file.

Step 5 — Determine If Fire Watch Is Required

Under NFPA 25 Section 15.5.2, fire watch is required when an automatic sprinkler system has been out of service for more than ten cumulative hours in a 24-hour period.

Cumulative means every period of downtime counts. A system that is down for six hours in the morning, briefly restored, and then goes down again for five hours that evening has exceeded the threshold.

However, you do not need to wait ten hours to implement a fire watch. The AHJ may order fire watch immediately based on the scope of the impairment, the occupancy type, the risk profile, or the expected duration of the repair. If there is any indication that the impairment will exceed the ten-hour threshold, deploy fire watch early rather than scrambling later.

If the fire alarm system is also impaired — a common scenario during major renovations or power outages — the four-hour fire alarm threshold under NFPA 72 applies instead. Use the more conservative threshold whenever dual impairments exist.

Step 6 — Deploy Qualified Fire Watch Personnel

Fire watch during a sprinkler impairment is not a security patrol. The personnel conducting the watch are functionally compensating for the loss of automatic suppression. That requires specific training and specific responsibilities.

Fire watch personnel must patrol all areas left unprotected by the impairment, know the location of all portable fire extinguishers, standpipe connections, and manual pull stations, be trained in fire department notification and building evacuation procedures, be familiar with the building layout and site-specific hazards, and have no other responsibilities during the watch period.

Personnel should hold verified fire watch credentials — not a generic security license. Fire Watch Academy certification ensures specialists are trained in impairment-specific patrol protocols, AHJ notification requirements, and documentation standards.

Step 7 — Document Every Patrol

This is where compliance is either proven or lost. Every patrol must be documented with the date and time, the name of the fire watch specialist on duty, the specific areas patrolled, observations — including confirmation of no emergency conditions or details of any hazards identified, and any actions taken in response to observations.

Paper logs can satisfy the minimum documentation requirement. GPS-verified, timestamped patrol records with photo documentation satisfy the standard the AHJ, your insurance carrier, and a courtroom will actually scrutinize. The difference is defensibility.

Free fire watch log resources are available at The Fire Watch Log, including printable log sheets and a digital logging tool in AHJ-ready format. For a comprehensive compliance checklist with downloadable PDF, visit REDLINE's Fire Watch Checklist.

If the AHJ has issued a formal fire watch notice, ensure it is posted at each affected building entrance and in the fire command center, and that all fire watch personnel have reviewed it.

Step 8 — Monitor the Repair and Manage Duration

While fire watch is in place, the impairment coordinator must track the repair progress and maintain communication with the contractor performing the work. If the repair timeline extends beyond the original estimate, update the AHJ and insurance carrier.

Do not allow fire watch to become open-ended without reassessment. Extended impairments may require escalated measures — additional personnel, modified patrol frequencies, or temporary suppression alternatives like connecting a sprinkler riser to a water tank for temporary supply.

Step 9 — Restore the System and Verify

When the repair is complete, the system must be inspected, tested, and verified as fully operational before the fire watch can be terminated. This is a requirement under NFPA 25 Section 15.7 — not a suggestion.

The restoration process includes verifying the system is functioning properly through appropriate inspection or testing, removing all impairment tags, notifying the AHJ that the system is back in service, notifying the insurance carrier and alarm monitoring company, and notifying building occupants that normal fire protection has been restored.

The fire watch continues until the system has been verified. Not until the technician says the repair is done. Not until the contractor leaves. Until verification is complete.

Step 10 — Close the File

After the system is restored, compile the complete impairment file. This file should include the impairment classification and scope documentation, all notification records with dates and times, the fire watch log — every patrol entry for the full duration, the restoration verification record, and any AHJ correspondence or directives received during the impairment.

This file is your defensible record. If the AHJ requests documentation during a future inspection, if an insurance claim references the impairment period, or if a liability question arises, this file is the answer. Store it permanently.

Don't Wait for the Impairment to Learn the Process

Every step on this checklist is defined by NFPA 25. None of it is discretionary. The property managers and facility operators who handle sprinkler impairments well are the ones who reviewed the process before they needed it — who already knew their impairment coordinator, already had a fire watch provider identified, and already understood what their AHJ expects.

Download REDLINE's Fire Watch Compliance Checklist to keep on file. Review NFPA 25 sprinkler impairment requirements to understand the standard in full. And if your sprinkler system is impaired right now, call before the ten-hour clock runs out.

Sprinkler system down? REDLINE Fire Watch™ deploys Academy-certified specialists with GPS-verified patrol documentation — on-site within 2 hours in FL, NJ, and UT, same-day nationwide. Call (833) 733-9824 or visit redlinefirewatch.com.