Security company on Long Island.
Long Island on this site means the region named on the coverage page, with Nassau County called out because its fire marshal publishes a specific fire-watch sheet and because armed school security is a common search. Tristate Security Patrol does not list a Long Island office. The business address is 5314 16th Avenue, Suite 238, Brooklyn, NY 11204.
Call 347-991-0121 with the town and the property type: a house, a private school, a synagogue, a store, or a building under a fire-watch order. Suffolk County details beyond “Long Island” are not spelled out here.
For most standard posts, uniformed officers are scheduled within 24–48 hours. Emergency coverage is coordinated through 24/7 dispatch.
Houses, schools, and ordered fire watches.
Long Island properties are often detached houses, school campuses with parking lots, and houses of worship on larger parcels than a Brooklyn lot. A patrol check has a longer driveway and a less obvious “stoop.” A school post is about arrival, dismissal, and visitors, not about a city sidewalk.
Armed coverage is a frequent question for Long Island private schools. The armed page for this region explains New York credentials. It does not say every school post is armed.
Home patrol
Exterior checks for a house can be quoted. The shared Community Watch membership is New York City only.
Armed officers
New York armed-guard registration for posts that require a firearm, including some school assignments.
School security
Private schools and yeshivas. Not a replacement for a public-school district program.
Nassau fire watch
When the Nassau County Fire Marshal orders a watch, the county’s published guidelines apply.
Events
Private gatherings staffed as events, quoted separately from patrol plans.
Unarmed posts
Still the default when a firearm is not what the site needs.
Nassau County is the part this page can be specific about.
Nassau County sits between Queens and Suffolk, with villages, school districts, and a county fire marshal. People also search “security companies Nassau County” and “armed security Nassau County.” This page answers those searches by describing Long Island work under New York licensing and, for fire watch, under the Nassau sheet linked below.
Town names such as the Five Towns come up in search tools with little volume, and this site does not claim an active route in any town. Community Watch, the shared neighborhood membership, is available in New York City only. A Long Island house, school, or fire-watch order is quoted as its own post.
Driving from Brooklyn to a Nassau site is part of the schedule. Ask for a start date. The 24–48 hour line for most standard posts is the same line used everywhere else on the site. It is not a promise that an officer is already in your town.
New York guard cards, Nassau fire-watch orders.
Long Island is New York State, not New Jersey. Security guards register with the Department of State. DCJS oversees training. Armed guards need a New York pistol license and the 47-hour armed course. A New Jersey SORA card does not replace that.
Nassau fire watch is not the FDNY F-01 system. The Nassau County Fire Commission publishes Fire Watch Requirements for occupancies it has ordered to keep a watch. The sheet says fire watch officers are assigned no other duties, patrol all areas at least hourly, keep a log of locations and conditions, carry a portable extinguisher, have radio or phone contact with a constantly attended location, and that the log is faxed daily to the Fire Marshal at (516) 573-9072. Management also notifies the local fire chief. The watch stays until that office releases it. If your impairment is in New York City instead, use the FDNY guide.
Licensed officers, documented work.
Founded in 2021, address in Brooklyn. Long Island posts are scheduled against that operation. The site does not invent a Nassau storefront.
Patrol technology is the GPS and portal stack on the technology page. A fire-watch log is a separate record, kept the way the ordering agency describes.
What is published, and what is quoted.
Armed school posts and Nassau fire watches are quoted. Commercial patrol checks start at $399 a month. Community Watch, the shared residential membership, is New York City only.
| Plan | Price | Minimum checks |
|---|---|---|
| Essential | $159/month | Minimum 3 Documented Property Checks Per Week |
| Plus | $229/month | Minimum 7 Documented Property Checks Per Week |
| Priority | $349/month | Minimum 14 Documented Property Checks Per Week |
| Premier | $499/month | Minimum 21 Documented Property Checks Per Week |
| Basic Commercial | $399/month | Minimum 1 Documented Property Check Per Day |
| Standard Commercial | $599/month | Minimum 2 Documented Property Checks Per Day |
| Pro Commercial | $799/month | Minimum 3 Documented Property Checks Per Day |
| Member-Only Vacation Watch | $25/day | Member add-on, one extra daily check |
| Residential Alarm Response add-on | $25/month per property | $35 per standard alarm response; $20 in-area alarm response |
| Commercial Alarm Response add-on | $49/month per location | $50 per actual alarm response |
Answers, in plain language.
Do you cover Nassau County?
Long Island is on the coverage list, and this page treats Nassau County as the part with published fire-watch rules. Name your town when you call.
Is armed school security available on Long Island?
Armed posts can be quoted for private schools when an armed officer is appropriate. Officers need New York armed-guard credentials. See the Long Island armed page.
What are Nassau County fire watch requirements?
Follow the Nassau County Fire Commission sheet: dedicated officers, hourly patrols of all areas, a log, communications, an extinguisher, notice to the local fire chief, and a daily fax of the log to (516) 573-9072 until the marshal releases the watch.
Do FDNY certificates apply on Long Island?
FDNY certificates are a New York City system. A Nassau order follows the county sheet. Confirm which agency wrote your order before you hire.
How much is private security on Long Island?
Published patrol plans start at $159 a month. Hourly armed rates are not on the site. Request a quote.
Related pages
Including school posts and Nassau searches.
Nassau County Fire Marshal guidelines.
Private schools and yeshivas.
The borough immediately west.
Business address and FDNY fire watch.
Use this only if the building is in New York City.
Monthly patrol prices.
347-991-0121.
Tristate Security Patrol
5314 16th Avenue, Suite 238, Brooklyn, NY 11204
Info@tristatesecuritypatrol.com
24/7 dispatch. This is the business address published for Tristate Security Patrol. It is not described here as a walk-in lobby.