If your sprinkler system, fire alarm, or standpipe is down and the building is still occupied, you're probably looking at a fire watch. Most property managers calling us don't need convincing that they need one. They need to know how fast they can get it, who's legally allowed to stand it, and what the fire marshal is going to ask for when they show up.
Short version: California Fire Code §901.7 requires that when a required fire protection system goes out of service, the fire department and the fire code official are notified immediately, and the building is either evacuated or covered by an approved fire watch until the system is back. NFPA 25 Chapter 15 is where the 10-hour threshold that gets quoted everywhere actually lives. Your local authority having jurisdiction, usually the fire marshal, has the final call and can impose stricter conditions.
If you're in an active impairment right now, skip to the checklist below.
If your system is down right now
- Call the fire department and your fire code official. Not later, now. §901.7 says immediately, and the notification timestamp matters if this ever becomes a claim.
- Ask the code official two specific questions: what patrol interval do they want, and which areas must be covered.
- Call a licensed private patrol operator. Confirm their PPO number before they dispatch.
- Start the written log the moment the first officer walks the property. Not at the end of the shift.
- Keep the watch running until the system is repaired, tested, verified, and the AHJ clears the impairment.
ShieldWise dispatches fire watch coverage across California from our Riverside headquarters. Call (714) 716-7430 and say it's a fire watch callout so it routes to dispatch instead of the quote queue.
What a fire watch actually is
A fire watch is a person, or a team, whose only job is walking a defined route at a defined interval, looking for signs of fire, and calling 911 the moment they find one. That's the whole function. They're the manual substitute for the detection system that isn't working.
The word "only" carries the weight there. NFPA 101 describes a fire watch as action beyond normal staffing, which is why telling your night janitor to keep an eye out doesn't satisfy anything. He has a job already. A fire watch officer doesn't.
We get this call regularly: a manager assumes a fire watch is a security guard with a different label. It isn't. A security officer is posted to deter and respond to people. A fire watch officer is posted to detect fire in a building that has temporarily lost the ability to detect it itself. Different post orders, different route, different log, different training emphasis. Same BSIS license underneath.
What California law actually requires
California Fire Code §901.7, Systems Out of Service. In plain terms, three obligations attach the moment a required fire protection system goes down:
- The fire department and the fire code official are notified immediately.
- Where the fire code official requires it, the building is either evacuated or an approved fire watch is provided.
- Coverage runs for everyone left unprotected by the shutdown, until the system is back in service.
Worth knowing: the 2025 California Fire Code, Title 24 Part 9, took effect statewide on January 1, 2026. If you're working from a printed 2022 code book or a vendor's PDF from 2023, you're on a superseded edition. Local amendments layer on top of the state code, and cities adopt on their own timelines.
Now the part that most California fire watch pages get wrong. A lot of them state that §901.7 mandates a fire watch after four hours. That number is not in §901.7. The section sets no fixed hour threshold at all. It leaves the requirement with the fire code official.
The hour thresholds come from NFPA 25, Chapter 15, which governs impairment management for water-based systems. NFPA 25 separates a preplanned impairment, the kind you schedule for maintenance or a retrofit, from an emergency impairment, the kind caused by a burst line, a failed valve, or a water supply interruption. For emergency impairments, the widely applied threshold is a system out of service more than 10 hours in any 24-hour period. Past that, you're expected to have a fire watch in place if the building remains occupied.
Alarms follow a parallel path. NFPA 72 covers fire alarm and signaling systems, and an impaired alarm can trigger a fire watch on its own even when the sprinklers are perfectly fine.
Sitting above all of it is Title 19 of the California Code of Regulations, the State Fire Marshal's general fire and panic safety regulations, which give the State Fire Marshal and local fire authorities the authority to require a fire watch in the occupancies within its scope.
There's also a separate California layer worth understanding, because it's how a lot of impairments get discovered in the first place. Health & Safety Code §13146.2 requires every California fire department to inspect hotels, motels, apartment buildings, and residential care facilities annually. §13146.3 extends that to public and private school buildings. §13217 covers high-rises with occupied floors above 75 feet. A deficiency found during one of those annual inspections can generate a correction notice that requires a fire watch until the deficiency is resolved.
AHJ interpretation varies across California, and that's the part that costs people money
Here's what nobody tells you until you've run coverage in a dozen jurisdictions: the same impairment gets handled differently depending on which fire authority has jurisdiction.
A sprinkler shutdown in an occupied mid-rise might get a 60-minute patrol interval from one bureau and a 30-minute interval from another. A dense downtown occupancy tends to draw tighter conditions than a suburban business park. High-rises and healthcare occupancies almost always draw the strictest terms, because the evacuation math is harder and the occupant profile is more vulnerable. Wildland-urban interface jurisdictions bring their own overlay.
We work with fire prevention bureaus across the state, including Riverside County and San Bernardino County in the Inland Empire, Los Angeles City and County, Orange County, San Diego County, the Bay Area jurisdictions, and Sacramento. The practical rule we operate by: ask the code official for the interval and the covered areas in writing, then staff to that, not to a generic template.
If a vendor quotes you a fire watch without asking which jurisdiction you're in or what the code official specified, they're guessing.
Who can legally stand a fire watch in California
If you contract it out, the company needs a valid Private Patrol Operator license from the California Bureau of Security and Investigative Services, and every officer they place on your property needs an active BSIS guard card. There's no separate state fire watch license. It's a guard card assignment with specialized post orders.
ShieldWise is BSIS PPO #122008. Pull that number on the BSIS license lookup at bsis.ca.gov before you sign, and do the same with every other vendor who quotes you, us included. A company that can't produce a current PPO number and a certificate of insurance in the same phone call is a liability transfer waiting to happen, and in an emergency callout that's exactly the kind of company that answers first.
License aside, the officer standing your watch needs to know the building. Where the risers are. Where the extinguishers sit. Which stairwell reaches the affected floor fastest. Who to call at 3 a.m. when something looks wrong. That's site-specific knowledge, and it's the difference between compliance and a warm body in a lobby. Our full breakdown of state training rules is in California security guard training requirements.
What a compliant fire watch looks like on the ground
Four conditions have to hold. The fourth is the one that fails inspections.
A defined route. Every area left unprotected by the impairment. Mechanical spaces, stairwells, storage, roof access where relevant. Not a lap of the lobby.
A defined interval. Commonly 30 or 60 minutes, sometimes 15 in high-hazard occupancies. Set by your fire code official, not by the vendor, and confirmed in writing.
Working communication and equipment. A charged phone, a direct path to 911, portable extinguishers staged along the route, and a named escalation contact for the building.
A written log filled out in real time. This is what the fire marshal asks to see. Officer name and guard card number, date, the time of every round, each area covered, anything observed, any action taken, signed. A log reconstructed at end of shift is worse than no log, because now you've got a documentation problem stacked on a compliance problem.
We run fire watch logs the same way we run patrol reporting, with timestamped rounds you can hand to a fire marshal or an insurance adjuster without editing anything first. If a loss ever comes out of the impairment window, that log is the evidence of whether the property met its obligation. Keep it on site and keep it available.
Hot work fire watch is a different framework
If the trigger is welding, cutting, grinding, or torch-applied roofing rather than a system impairment, you're under Cal/OSHA rather than the fire code.
Title 8 CCR §4848 requires employers to establish and implement a fire prevention and suppression procedure for these operations, based on NFPA 51B-2009 and ANSI Z49.1-94, both incorporated into the regulation by reference. That chain matters, because the specific fire watch duties live in NFPA 51B, not in the text of §4848 itself.
What that works out to in practice:
- The watch is in place before the work starts, not after.
- Combustibles within 35 feet are removed, covered, or shielded. Title 8 Article 88 sets that clearance.
- Coverage extends anywhere sparks or slag can travel, including the floor below through penetrations.
- The watch continues after the work stops. NFPA 51B sets a minimum of 30 minutes, and plenty of AHJs and insurance carriers require 60. Most hot work fires get discovered in that window, not during the work.
- Hot work needs a fire watch whether or not the sprinkler system is working, because sprinklers don't reliably catch a slag fire smoldering inside a wall cavity.
One practice we'd push back on: contractors covering sprinkler heads to protect them during hot work. That's an impairment. It gets treated as one. If your contractor does this without notifying anyone, you now have an undocumented impairment during the single highest-risk activity in the building.
If the contractor says their own crew will handle the watch, ask three things. Who specifically. Do they have extinguishers on the route. Do they have any other task during the watch. Vague answers mean you put a dedicated officer on it. More detail on job site coverage is in our construction site security guide.
How long it runs and how it ends
Until the system is repaired, tested, verified operational, and the AHJ releases the impairment. Not when the repair truck pulls out. Not when the building closes Friday, because a fire watch runs continuously through nights and weekends while the impairment is open.
NFPA 25 §15.7 governs restoration: verify the system works through appropriate inspection or testing, remove the impairment tags, notify the AHJ the system is back. Only then does the watch stop.
The most expensive mistake we see is ending a watch early because a contractor said the repair was basically done. Basically done is not tested and cleared. If a fire happens in that gap, your carrier will find the gap.
What it costs
Fire watch prices in the same band as unarmed guard coverage, with premiums for short notice and for overnight or holiday hours. Our published statewide ranges are in the California security guard cost guide. Inland Empire posts generally land in the lower half of those ranges because we deploy from our Riverside headquarters and you're not absorbing a travel premium.
Three variables move the number: hours per day, how many officers the route requires, and how fast you need someone on site. A watch scheduled two days ahead of a planned shutdown costs meaningfully less than one starting in three hours. If you know a system is coming down for maintenance, book it in advance. That's the single easiest way to cut the bill.
On the other side of the ledger, an uncovered impairment can produce a correction notice, a red tag that closes the occupancy, and a carrier taking the position that the loss occurred while the property was out of compliance. The watch is almost always the cheaper number.
We quote in writing before anyone deploys, with the hourly rate, minimum hours, and any premium spelled out. If a vendor won't put minimum hours in writing during an emergency callout, that's your signal to call someone else.
What happens if you skip it
The fire code official can issue a correction notice, order the occupancy evacuated, or red-tag the building until the system is restored. Beyond enforcement, an uncovered impairment during a loss becomes the central fact in the insurance claim and in any premises liability action that follows.
We're not going to publish specific fine amounts, because they vary by jurisdiction and by whether the violation is charged as an infraction or a misdemeanor. Your AHJ can tell you what applies in your city. Honestly, the fine isn't the exposure that should worry you.
Getting coverage started
Notify the fire department and your fire code official. Ask for the interval and covered areas. Call a licensed PPO. Start the log when the first officer arrives.
We cover every California county from our Riverside headquarters, with recurring capacity across the Inland Empire, Orange County, Los Angeles County, and San Diego County. Call (714) 716-7430, or see fire watch services for scope and coverage detail.
Need fire watch coverage now?
Call (714) 716-7430 and tell dispatch it's a fire watch callout. ShieldWise is BSIS PPO #122008, serving all California counties from our Riverside headquarters.
Request a quoteFrequently asked questions
When a required fire protection system is out of service and the building stays occupied. California Fire Code §901.7 requires immediate notification of the fire department and fire code official, and either evacuation or an approved fire watch. NFPA 25 Chapter 15 is where the 10-hour-in-24 threshold for emergency impairments to water-based systems comes from. Your local AHJ can impose stricter conditions.
No. That figure appears on many vendor pages, but it is not in §901.7, which sets no fixed hour threshold and leaves the requirement with the fire code official. The 10-hour figure for emergency impairments comes from NFPA 25.
The 2025 California Fire Code, Title 24 Part 9, took effect statewide on January 1, 2026. Local jurisdictions adopt amendments on their own schedules, so check with your AHJ.
Only if that person has no other duties during the watch and your AHJ accepts it. NFPA 101 describes a fire watch as action beyond normal staffing. A janitor, engineer, or front-desk employee doing their regular job at the same time generally does not satisfy it.
If you contract it out, yes. The company needs an active BSIS Private Patrol Operator license and each officer needs a current BSIS guard card. There is no separate fire watch license. ShieldWise is PPO #122008, verifiable at bsis.ca.gov.
Commonly every 30 or 60 minutes, sometimes every 15 in high-hazard occupancies. The interval is set by your fire code official and should be confirmed in writing.
Until the system is repaired, tested, verified operational, and the AHJ clears the impairment under NFPA 25 §15.7. It runs continuously, including overnight and weekends.
Yes. Title 8 CCR §4848 requires a fire prevention and suppression procedure based on NFPA 51B-2009 and ANSI Z49.1-94. The watch starts before work begins and continues at least 30 minutes after it ends, with many AHJs and insurers requiring 60. Combustibles within 35 feet must be removed, covered, or shielded.
Every area left unprotected by the impairment, which your fire code official defines. On a partial sprinkler shutdown that may be a few floors. On an alarm panel failure it is usually the entire building.
Response depends on the property's location and the hours needed. Call (714) 716-7430 and tell dispatch it's a fire watch callout.