A1 Security Systems Sarnia Ontario | DSC Security Systems , FLIR ...

Smart Home Security that Enhances Your Home Innovative User Friendly Touchscreens Customizable Camera Systems to Fit Customer Needs Automation and So Much More! Bring Peace of Mind, One System at a Time

Home Security

A-1 Security Systems provides residential homes with the latest in intrusion alarm systems and video surveillance cameras. Secure your home and keep the intruders out before a break-in occurs.

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Business Security

A-1 Security Systems provides the security required to keep your premises safe & secure. From the latest in Intrusion Alarm Systems, Access Control Systems and Video Survellance Cameras.

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Personal Safety

From Medical Alert Systems which are geared towards seniors, to our Lone Workers Security App which will track your safety, A1 Security Systems are here to keep you safe.

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Call A1 Security today for Your FREE security consultation and estimate

1.800.335.2296 E-mail Form

Experience & Knowledge

38 years in business assures we have the experience to design a security system that’s right for you. Our technical staff have the training to provide clean and efficient installations.

Fast Alarm Response ULC Monitoring

Providing ULC Listed Monitoring is the first step to receiving fast and accurate alarm, fire and medical response. We settle for nothing but the best, and through our monitoring stations we deliver this directly to you.

Quality Security & Great Value

We utilise the highest quality security products on the market to deliver premium security solutions to all of our customers, all provided at a pencil sharp price.

After Sale Support & Service

We service what we provide, nothing is more important than making sure you have the security when you need it . Our written warranties ensure we stand behind our work, our customer service is second to none.

What Our Customers Say

• First class service and expertise. Reliable and always available for any technical questions, wouldn’t look any further than A1 for security and safety, they also do audio systems too, great… read more service!

  Steven DentJune 10, 2023

  The owner Remo was great! I dropped by the office without an appointment to inquire about a security system – he talked with me and came to my house… read more the next day. Answered all my questions and provided a quote quickly. Installation was quick and easy; the staff were friendly, tidy, and efficient.

  Ryan DobbsJune 10, 2020

  Great people to work with. Great price. Prompt service and always quick to answer questions. They upgraded the system at The Sarnia Legion. We would highly recommend them.

  Les JonesMarch 10, 2025

• A-1 did a great job setting up my security system and it has worked very well for the past year. Their customer service is fantastic!

  Chadric DreiseJune 10, 2024

  Once again Nick and his team surpassed expectations with their service. Nick and his A1 team serviced us when we bought our house in 2019. And now most recently with… read more our new shop for our Pool Company Rock Solid Pools. New Cameras and security all upgraded thanks to A1

  Calvin PelleboerApril 10, 2025

  Professional, knowledgeable, prompt, courteous, and attentive to listening to the clients concerns. I have and will continue to highly recommend A1 Security to all of my friends and family. Gregg – Sarnia

  Gregg SherwinJune 10, 2019

• Wow! Just wow! So much attention to detail and personal service! From the second Bob returned my call, I was his number 1 priority. Tony was… read more here within days to install with Matt, and they did an amazing job. So professional and knowledgeable!!!!! Tony knows everything about his products and Matt is a techno wizard! I am trying to think of one negative comment so this doesn’t look fake…but I can’t!!! Customer service is alive and well at A-1 security!!!!

  Salena ClarksonJune 10, 2023

  Nico and team have been amazing to work with. They’re prompt with installs and had no issues answering questions about utilizing monitoring from our cell phones. We’re happily recommend their… read more services on all our new builds.

  Karis GervaisJune 10, 2023

  The best Security Services and after services at A1 Security Services. Definitely recommended.

  Ajinkya PawarJune 10, 2024

• I had to make certain changes and they were able to help me without having a bunch of costs applied to me. They were more concerned about their service with… read more me. Not too many places are like this. Thank you A1 Security.

  K CApril 10, 2025

  A1 Security staff and Owner Nick very pleasurable to work with . Each staff member takes safety precautions and ensures job task is completed safely. We use A1 at our… read more business in alarm systems and fobs. I go home each night knowing we in good hands . Highly recommended A1 Security

  DanMarch 10, 2025

  The team at A1 is great. They’ve handled the security needs for my parents, sister, my offices and my home for a few years now. Very thorough, responsive and overall… read more great service…I’d like to mention Nick Discanno who has spent a ton of time with me at my home and office over the past couple years. Nick goes the extra mile to make sure no detail is overlooked with the security system setup.

  Michael Cho-YoungJune 10, 2020

• The guys were in my work today updating the camera system. Very friendly service. Installation was much quicker than I anticipated.

  Regi DomingueJune 10, 2021

  Very happy with A1’s service and the system that was installed.

  Abstract MarketingJune 10, 2019

  Always a pleasure working with A1

  Greg JohnstonJune 10, 2021

• Great service from my first meeting with Remo to installation day. Marcus & Mike were so polite and courteous and professional. Highly recommend A-1 Security.

  Grace CloutierJune 10, 2021

  I recently bought a house with Control4 Home Automation hardware integrated into it. The majority of the home is integrated through this system and can be controlled via an App… read more and/or the light switches (lights, motorized blinds, ceiling speakers, etc..). Upon close date, I received the keys and when I entered the home, none of the features were functioning properly as promised on the listing and the seller was uncooperative with helping fix the issues with the Control4 System. My real estate agent had recommended that I contact Nick from A1 Securities as he has recently become a Control4 Dealer and would be able to fix my system. When I contacted Nick, he was very accommodating with my work schedule and was able to come after hours to come look at my problem (We had planned for 7PM, talk about Business Pride). There were a lot of problems with the Control4 System upon first inspection, but Nick’s dedication to ensuring I had a fully functioning system before he left was just a testament to his reputation. He had spent 5 hours (yes to midnight) and made sure to answer all of my questions along the way as well teach me how the system works. He was very knowledgeable and did not shut down any ideas that I had suggested in order to fix the system. Thanks to Nick, I now have fully functioning lights, blinds, etc. If you’re looking to upgrade your home’s security or seeing what options are available to make your home a “Smart Home”, Contact Nick from A1 and he’ll be sure to set you up!

  Jason PhuongJune 10, 2020

  Have used A1 for large scale corporations, spanning multiple properties, and small, one building setups. Very professional, and knowledgable. Work with you to accommodate a current setup, to transition into future,… read more more modern applications. They offer scalable solutions to meet the needs of your growing business needs.

  Ron SmithMarch 10, 2025

• We have been with A1 security for a number of years. Excellent support.i called today because I have a new iPhone & could not get cameras to work.Nick had me… read more up & running again in 5 minutes. Do not hesitate to get an alarm system with them. Great people to deal with & very professional.thank you Nick Don

  Don McMurrayJune 10, 2021

  Remo supplied and installed HD camera equipment for a non profit organization that I volunteer for. He gave us a fantastic discount and the technicians that installed the system… read more were very professional and pleasant to work with. We highly recommend A1 for all security needs.

  Gary WhitsonJune 10, 2022

  They offered an excellent product at the best price. Bob was professional and polite; he took a lot of time to explain things to us and he was patient while… read more we made a decision. He has provided amazing service and support. We would highly recommend A1 in general and Bob Redmond in particular.

  C. Joseph WrightJune 10, 2022

• Serviceperson did a real nice job.Attention to detail,seems to be working much quicker now and no issues.Would recommend

  Terry LumleyOctober 10, 2024

  I contacted A1 regarding new security for my business. We are so pleased with the system and with the communication from Nic, the technicians, and the office staff. A1 was fair… read more and honest! 10/10

  Katie KernMarch 10, 2025

  These guys are great. There were no hidden fees, A1 took the time to answer my questions and I felt that they actually cared! the new installation has worked flawlessly… read more for 5 months, and when I did have an question about arming my system they responded to my e-mail within 1 hour – GREAT SERVICE. Thank you!!

  Mark RequenaJune 10, 2019

• Nick and the team at A1 Security are nothing short of miracle workers. They are more than just security. They completed the install of our home threate. Their knowledge and… read more experience in this space is unmatched. We use this space every day now because of them. Nick and his team’s have an amazingly high standard for customer service. I have emailed Nick questions in the evening and received immediately responses to help us trouble shoot. Call them today. You will not be disappointed.

  Kristy SavoieJune 10, 2023

  A1 Security has been fantastic to deal with! I have recommended to friends, family and clients and will continue to do so in the future!

  Rod GowrieApril 10, 2025

  A1 installed a great camera system on our commercial plaza. Footage from the system helped the police catch a criminal doing damage to the property.

  Patrick CoutuJune 10, 2021