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

• We have had the pleasure of dealing with A-1 Security and Remo the owner for the past 20 years. In our first house, Remo quoted us a price to upgrade… read more our old alarm system. Unbeknownst to him, the walls had bracing blocks and it took a lot of extra effort to pull the wires. To his credit, Remo stuck to his original quote and did not charge us extra for the countless extra hours that it took him and his team to get the job done. Our current house we custom built. Based on the great experience we went back to A-1 and made an appointment with Remo. He promptly came over and designed a full alarm system including cameras. He never tried to up-sell or push us into items we did not need. To weigh our options, we got multiple quotes from other companies but the system from A-1 was exactly what we had in mind for a very competitive price. Our new system uses the latest technologies and we love it. Together with the cameras they offer great user friendliness and peace of mind. Remo’s son Nico, helped during the installation process and showed tremendous dedication. We decided to add home automation to our new house and while at it, also upgrade our basic network to a Ubiquiti system. Nico was key in designing and setting it up and making sure that it all worked. He ran into an issue when a module in a remote building could not communicate with the transmitter but after a few visits and lots of dedication he got it to work. This is a great family business that we can wholeheartedly recommend.

  Jacob V.June 10, 2020

  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

  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

• Nick and staff at A-1 Security have been exceptional. Their customer service and attention to detail is incredible. Nick is very knowledgeable with respect to security systems and… read more smart home options, which makes decisions a lot easier. All concerns and questions are dealt with immediately in a very professional and understanding manner. Nick loves what he does and it shows in his work ethic and attitude. Thanks A-1 Security, I appreciate everything you do!

  Jim TsaprailisApril 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

  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

• Remo your tech did an excellent job to get my camera system up and running kudos to A-1 Security. Many thanks

  Bonnie LouksJune 10, 2021

  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

  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

• Had the guys in today to update our camera system. Very friendly, very quick installation.

  Jonathan SmitJune 10, 2021

  I have been working with Nick for a few years now on our Control4 home automation system and its been fantastic. Great professional help and things get done very… read more quickly and efficiently. Highly recommended

  Doug LaButteJune 10, 2023

  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

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

  Ajinkya PawarJune 10, 2024

  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

  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

• 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

  Awesome service, Jon set me up with a great system and Cameras

  VictisMay 10, 2025

  We had been with the big guys before moving to Sarnia and finding A1. There is no comparison between the two…A1 beats the big guys hands down. The customer service,… read more knowledge and courtesy is excellent. They’ve got a great team of people working for them in every department, from sales, to accounting, to installation, to monitoring. We are very happy with our decision to go with A1.

  D PJune 10, 2019

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

  Abstract MarketingJune 10, 2019

  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

  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

• 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 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

  Always a pleasure working with A1

  Greg JohnstonJune 10, 2021

• Excellent service!! Awesome staff!!

  Kathryn D’SaJune 10, 2020

  The staff and technicians at A-1 Security were punctual, professional and very particular in their installation of their product at our residence. They spent adequate and effective time in providing… read more educational as to how to use the system as well as ensuring that I had contact information should I have follow up questions or concerns….which I did and was quite satisfied with their assistance. I wouldn’t hesitate to recommend A-1.

  Brian AnthonyMarch 10, 2025

  I had the pleasure of working with A1 Security recently, and I couldn’t be happier with their service! From the initial call, their team has been remarkably professional and responsive.… read more They took the time to understand my specific security needs and tailored a solution according to my priorities that was both effective and affordable! Installation was quick and seamless and I feel so comfortable knowing my home is so secure. What sets A1 apart from others is their continued attention to detail and customer service. I would highly recommend the team at A1 to anyone and I won’t use anyone else!

  Cathy FabbriApril 10, 2025