Security ONE

Security ONE has been the premier security company in Southwestern Ontario for over 30 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 Better Business Bureau, 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 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.

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 SIA (Security Industry Association) Certified care operators are on site 24/7 to handle all emergency calls and alarms.

Because we own and operate our own monitoring center – 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!

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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.

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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 you 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.

Client Testimonials

“With over 100 employees coming and going at various times of the day, Security ONE suggested a door access control system that eliminated keys entirely. I now don’t have to worry about changing the locks or wondering if an employee showed up to work on time. From the initial design to the installation – everything has been top notch!”

– Abe Fehr – President of Uni-Fab

” Mark and the Security ONE team took the time to educate me about additional security measures I could put in place such as email notifications when an employee entered or exited my office building. I unfortunately had a case where an employee was not working the hours that they stated on their time sheet so this was a great tool in helping me to determine that. Thank you for always providing myself, family and staff with peace of mind.”

– Alynn Anglin – Anglin Financial Management

“Just wanted to let Security ONE know of the GREAT Service we received today at the Leamington Fairgrounds! Your service technician Steve Tavares was so patient teaching myself how to properly operate our alarm system. He was very knowledgable and thorough making sure we were properly secured in our building. Plus fixing any problems then and there! Thanks Steve for a job very well done!

– Tammy Wiper – President, Leamington District Agricultural Society

“I just wanted to write a short note of thanks to the entire team at Security ONE. Both my home and my businesses have been long term customers of Security ONE. Throughout this period, I have found their service and reliability to be absolutely impeccable during these years. “

– Frederick H. Herdman – President, Herdman Technology Ltd.

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