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Protecting Lives, Securing Assets
Tailored fire detection and suppression systems to keep your people and property safe.
Early Detection & Rapid Response
Custom Designs for Every Facility
Certified Expertise
Peace of Mind
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Advanced Systems for Ultimate Protection
From access control, video surveillance to 24/7 monitoring, we help safeguard your assets.
24/7 Monitoring & Response
Comprehensive Access Control
Real-Time Security Insights
Customized Solutions
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Leading Industry Fire & Security Solutions
National Fire Protection Association (NFPA) Member
Underwriters Laboratories (UL) Member
- Canadian Fire Alarm Association Member
Fire, Life Safety & Security Under One Roof

SMART. CONVENIENT.
Canadian owned and operated since 1988. We have over 3 decades of Industry experience with a wide range of serviced sectors, spanning commercial, residential, and more. We are committed to quality of all projects large or small.
Our technicians are connected to our online digital service which allows for faster and more reliable dispatch times, digital workorders and reports.
Services
- Fire Alarm
- Voice Communication
- Security Systems
- Card Access
- Intercom
- CO2 System
- Fire Sprinkler Systems
- Emergency Lighting
- Portable Fire Extinguishers
- Burglar Alarms
- Installations
- 24/7 ULC Monitoring
- Video Surveillance + Monitoring
- Inspection & Testing
- Service & Repair
- Fire Hydrants

Certified for Excellence in Fire Safety and Security
At Sentinel DEC Systems Inc., our commitment to safety and security is backed by rigorous certification standards.








Don’t leave your fire safety and security to chance
At Sentinel DEC Systems Inc., we specialize in creating tailored solutions to safeguard your building and ensure peace of mind. Whether you’re looking to upgrade your existing systems or build a comprehensive safety plan from the ground up, our experts are ready to help.
Our Trusted Partners












Got Questions?
We Have Answers.
We provide a wide range of fire protection solutions, including fire detection systems, sprinkler systems, fire alarms, and suppression systems. All of our solutions are tailored to meet the unique needs of your facility and ensure maximum protection.
Absolutely. We provide 24/7 emergency service and scheduled maintenance to ensure your fire safety and security systems remain in optimal condition. We’re always available for technical support and emergency assistance.

What They Say
On January 14,2025 Vince and Chris were here to do deficiency repairs.
It was a very positive experience that I feel is worth sharing with their superiors. They showed up as scheduled at 8 am, they were polite, pleasant, and considerate with the tenant in the unit they needed access and with the superintendent.
They were professional, visibly working well together, focused on the job (not on the phone), completing the job, verifying to be everything good and communicating with the building stuff what they did.
Keep up the good work and show example to others.
Thank you,
Gia
Dear Tom:
During our 21 years of a mutually profitable association your Senior Computer Technician Gord Robinson really went the extra mile for me, YCC No. 342 and you and your company. Recently when our former fire alarm contractor contacted the Toronto Fire Department that we had a non-functioning, non-repairable alarm system I contacted you and at the end of the day you dispatched Gord and subsequently the diagnosis was instantly completed and a workable mend was completed.
Recently we found ourselves in another serious situation with out new “key scan system” and Gord had to jerry-rig the new and old together to make it work. Again, thanks Gord.
Gord listened to our problem and had what it takes to do the job and he was the solution to the problem. Also, it’s nice to meet a man who says good day to you and means it.
Thank you Tom and your staff.
Compass Management Services Inc
Good Morning,
I just wanted to express. my sincere thanks to the tech that was sent to YCC 397 yesterday.
We received many compliments and feedback advising how professional and kind he was to our homeowners during this inspection.
I also had the pleasure of speaking with him and he was great! Very positive!
Please extend our thanks for his kindness and diligence.
J Lewis
We recently upgraded our security systems with Sentinel DEC Systems Inc., and the difference is night and day. Their team assessed our needs thoroughly and installed everything without disrupting our daily operations. Highly recommend their services.