Is it time for you to take your home or business security serious in 2025? Security ONE's technical team has over 100 years of combined experience. Let our expert team design the perfect security plan for your home or business. Get in touch today to learn why our team is the #1 rated Security Provider in Southwestern Ontario.

New Year for a New Career? Apply to join our award winning business development team that promotes a fun and energizing culture, competitive compensation plan, and creative control that allows true all-stars to shine!

Independent Living Technology for Seniors

See why thousands of families have trusted their loved ones with Numactive - A Medical Alert partnership with Security ONE providing peace of mind to thousands of Canadians with Proactive Fall Solutions & Medical Alert Devices.

About Security ONE

Security ONE has been the premier security company in Southwestern Ontario for almost 50 years. Locally owned and operated since 1978, the company has been led by a group of individuals with an extensive background in commercial and residential security.

We are a member of the Canadian Alarm & Security Association (CANASA) and listed with Underwriters Laboratories Canada (ULC).

We offer 24-hour, 365-day a year monitoring of your home, office, or medical alert of a loved one. All of our monitoring is done locally, based out of our Leamington, Ontario monitoring station.

Security ONE is an authorized dealer for Alarm.com, Honeywell and First Alert Security System. We provide our customers with complete solutions and a full line of security products and services. We offer additional monitoring services such as low temperature, rising sump pump levels, asset protection, and protection from noxious gases.

You can count on us for all of your security needs, including the design, installation, servicing, and monitoring of your Security ONE Alarm system.

What Makes Security ONE different?

Local ULC Monitoring

Monitored in Southwestern Ontario.

Monitored in Southwestern Ontario by our own ULC-Listed emergency care center professionals.

We don’t outsource the monitoring of your alarms to 3rd party call centers out of the country. Our TMA (The Monitoring Association) Certified care operators are on site 24/7 to handle all emergency calls and alarms.

We can customize, monitoring and dispatch commands to best suit the needs of all our clients. Our operators have an extensive understanding of your communities and streets, because they live local. Local Matters!

Our Client Care

Wow Moments!

We strive to create WOW moments at each and every client interaction.

Each and every time we have a client interaction we are looking to provide you a level of service that goes above and beyond. We are constantly striving to become better in every aspect of our business. We practice the fine art of under promising and over delivering, trying our best to exceed your expectations.

Customized, Personal, Flexible Design

Never a cookie cutter system.

We meet you onsite to work together to build a security plan that protects you and your family or your business, all while keeping your budget in mind.

At Security ONE we truly believe that your system design plays a large part in your protection. We are experts, trained to ensure there are no vulnerabilities in protecting your home or business and your assets. This personal approach will leave you feeling safe, secure, and with peace of mind.

Professional Installation

Over 100 Years combined technical experience.

Our technicians are all ULC and CANASA (Canadian Alarm Association) Certified.

We personally install what we sell. We are not a “third party” Alarm Company.” Our technicians are not only trained to the highest of standards on installations, they also add a layer of knowledge when positioning all the components of your security system. This again ensures that there are no vulnerabilities in your system. When our technicians leave your home or business you will be setup and secured. Our station will then ensure that your system is transmitting properly, each and every day.

Full Service Security

Chosen by Honeywell as an Authorized Dealer.

We can integrate security alarms, medical alarms, access control, and video surveillance into one complete system.

Whether your home or business requires a basic security system, or a very complex multi system design, Security ONE has the expertise and experience required to provide a safe, secure and affordable solution.

Community Responsibility

We truly care about your community.

At Security ONE we have a strong passion to be out and supporting your community.

We are a part of your community. We strive to help better your community. We are active in the community. Your Community is our Community!

We take great pride in participating in community events, events that give back to our communities. For the past 2 years we have provided a family with a FREE security system with FREE monitoring! This is a highlight of the year for many of our team. We look forward to continuing this tradition.

About Security ONE

What Makes Security ONE different?

Local ULC Monitoring

Our Client Care

Customized Design

Professional Installation

Integrated Security

Our Community

Local ULC Monitoring

Monitored in Southwestern Ontario.

Monitored in Southwestern Ontario by our own ULC-Listed emergency care center professionals.

Our Client Care

Wow Moments!

We strive to create WOW moments at each and every client interaction.

Customized, Personal, Flexible Design

Never a cookie cutter system.

We meet you onsite to work together to build a security plan that protects you and your family or your business, all while keeping your budget in mind.

Professional Installation

Over 100 Years combined technical experience.

Our technicians are all ULC and CANASA (Canadian Alarm Association) Certified.

Full Service Security

Chosen by Honeywell as an Authorized Dealer.

We can integrate security alarms, medical alarms, access control, and video surveillance into one complete system.

Community Responsibility

We truly care about your community.

At Security ONE we have a strong passion to be out and supporting your community.