Sprinkler Inspections & Alarm Testing:
847-741-0017

State Liscensed & Certified
First Detection Systems is the premier full service fire alarm systems company in Illinois. We are here to help design, service, inspect and test your commercial and industrial fire alarm systems.

No project is too large, and we understand communication is key. We’re unlike other contractors, we care deeply about your safety and always deliver.

Fire Alarm Service

First Detection Systems is the premier full service fire alarm systems company in Illinois. We design, service, inspect and test your commercial & industrial fire alarm systems.

Annual Inspections

Our highly trained fire alarm inspection technicians are certified in many systems such as Simplex, Silent Knight, Edwards/EST, FireLite, Notifier and Ademco to name a few.

Design & Installation

We are proud to service Chicago and surrounding suburbs for Fire Alarm system design, installation, testing, voltage, and more for over 35 years.