For over 39 years, Sentinel Alarm has been by your side.

Alarme Sentinelle - Compagnie de Montréal

Since 1978, Sentinel Alarm has been providing customized security solutions to customers in Montreal and the surrounding area. Our fully bilingual expert staff has a total of over 100 years of experience in the security industry. Throughout the decades, Sentinel has maintained its commitment to providing outstanding quality, service, and reliability, and we continue to do so to this day.

Our Promise

  • 24/7 monitoring through our U.L.C. listed and Five Diamond certified Central Monitoring Station.
  • Outstanding customer service by our in-house technical support staff.
  • Customized security solutions by our expert sales staff.
  • Professional installation by our certified technicians.

Community Outreach

Our sincerest compliments to your staff and security systems for the excellent way they operated during a recent break-in.
— G. S., Sentinel Customer

Accreditations and Affiliations