Primary Systems concentrates on improving the performance of your building systems so you can concentrate on managing your business.  We combine superior product knowledge, local expertise and unparalleled responsiveness to keep your building systems running at peak efficiency.  By implementing a service plan, you'll improve reliability, avoid costly repairs, and prolong system life.  Ultimately, you will minimize business disruptions and reduce building operational costs.

Tailored Service

Primary Systems has been helping protect people and property for over 30 years.  We offer a broad range of life safety services and programs designed to meet the specific needs of each facility we service.  Our highly trained staff can service all types of fire alarm, communication, and security systems, regardless of the size, complexity, or system manufacturer.

As a locally owned and operated business we understand the local codes and regulations.  We are committed to exceeding our customer’s expectations.  We are proud to provide you with a single source for your life safety service needs.

Preventive Maintenance Programs

We can customize a preventive maintenance program that provides you with a single source for all of your life safety systems.  A service representative will meet with you, tour your facility, and develop a service agreement to ensure your systems are tested, inspected and maintained to keep them operating a peak performance. Your agreement may include inspections, testing, parts replacement, emergency services, repair, maintenance or other services we provide.

                                                 Service Options   

Fire Alarm Service


Healthcare Service


Security Service


Education Service

Monitoring Service

In order to provide you with a greater level of protection our Central Station Monitoring service is supported by a UL and Factory Mutual Certified facility.  Our professional operators are trained to identify incoming alarms and notify the appropriate authorities and responsible individuals needed for response.  Our monitoring center is on the job when you can’t be.

Service 24-Hours a Day

Primary Systems service representatives are on call and available 24/7 for prompt dispatch to your facility.  We will develop a plan to deliver the needed level of response so you’ll know your people and property are protected around the clock.

Primary Systems
4000 Green Park
St. Louis, MO 63125
P: 314-880-9977
F: 314-880-9988