• 24/7 Emergency Service
  • Installations, Service and Preventative Maintenance
  • Commercial and Industrial Systems
  • Family owned and operated for 28 years
  • Fully Licensed and Insured
  • NICET Certified Technicians
  • NFPA Member
  • BBB Accredited
  • Serving New Hampshire, Maine, Vermont and Massachusettes

About Us

Since our incorporation in 1988 BK Systems, Inc. has been committed to providing our customers outstanding service in the building systems industry.  Whether your requirements are in Fire Alarm, Premise Security, Nurse Call, Apartment Intercom, Kitchen Suppression, Fire Extinguishers or CCTV, BK Systems can provide quality products and superior service.

Our factory trained technicians are on call 24 hours a day, 7 days a week and work hard to ensure that our customers’ premises and peace of mind are well protected. Each of our technicians stay current with the latest technology in the industry.

In addition, our sales team has the knowledge and expertise to provide our customers with cost effective solutions that conform to and in most cases exceeds the requirements of Local, State, and Federal codes and guidelines.

Fire Alarms

Our Systems are industry leading Fire Alarm products. Whatever requirement you have in your fire alarm specification, BK Systems stands ready to assist you.

  • Notifier - Fire Alarm Control Equipment
  • System Sensor - Fire Alarm Devices
  • Space Age Electronics - Fire Control Annunciation
  • Wheelock - Fire Alarm Signaling Devices


  • UL Listed Central Station
  • 24/7/365 Coverage
  • Redundant Call Centers
  • Toll Free Lines
  • Monitoring Services Provided by CentraLarm
  • All Systems Monitored with a 24 Hour Test to ensure communication.


ABC dry chemical
Pressurized water
BC chemical
K class

En-Gauge extinguisher monitoring available on all extinguishers
Automated electronic monitoring of:
  • Pressure
  • Removal
  • Obstruction
Satisfies all NFPA / UL requirements for monthly extinguisher checks
*Requires wiring and fire alarm integration.

We also perform:
  • Annual inspections
  • Repressurizations
  • Refills
  • 6 year maintenance
  • 12 year hydrostatic testing

Kitchen Suppression

Sales, Service and Installation of Commercial Kitchen Suppression Equipment.

We Service all manufacturers including ProTex, Pyrochem, Ansul, Kidde and others.

We can upgrade you to UL 3000 compliance.

DOT Certified to Test and Inspect Pressured Cylinders.

Factory Trained and Certified ProTexII Design and Installation Specialists.


Installing a security alarm system is the most effective way to safeguard your establishment and prevent burglaries. With the help of our business security experts, systems can be engineered to meet any level of security and budget.


We provide Systems manufactured by Bosch, GE Security, Pelco, IDView, and others.

We can integrate your CCTV system with Access Control or Security Solutions.

  • Cameras
  • DVRS
  • Monitors
  • Internet Connectivity

Access Control

We provide top quality Access Control Systems manufactured by GE Security, Kantech and others.

Site assessment and System design available.

Emergency Lights

We sell and service Exit Signs and Emergency Lights

Incandescent or LED Available

Many existing exit signs use incandescent lamps. Although the electrical power demand of each sign is low, approximately 24 to 40 watts, each sign is typically operated 24/7/365 which equates to 210 to 350 kWh per year per sign. Many existing signs can be converted to LED using energy efficient retrofit kits which can lower kWh consumption by 90%, and the expected life span of the bulbs are 3 to 4 times longer than incandescents.

Apartment Entry

We offer several solutions to Apartment Intercom / Entry Systems. Standard hard wired units with apartment stations. Telephone Entry Systems Video Entry Systems

Nurse Call

We carry a full line of master stations and equipment.

  • Pull Cords
  • Emergency Buttons
  • Hallway Lighting Indicators
  • Person In Room Detection

Master Clocks

Synchronized Clock Systems for schools and other places of assembly.

Hard Wired or Wireless

Digital or Analog

Fire Alarm Systems