About Us

about guardian

Guardian Security Solutions was opened in early 2005 by Nick Nicolacopoulos,primarily as a Lethbridge and area residential alarm company and has evolved into 2 locations (Lethbridge and Calgary) almost 10,000 customers and 15 employees. We design, install and service residential/commercial/industrial alarm panels, surveillance systems, access control systems, structured wiring, Intercom systems and Multi room audio with certified electronics technicians on staff.

Guardian is the local Lethbridge and Calgary Authorized dealer for Securtek Monitoring Solutions, a Canadian ULC certified monitoring company serving over 60,000 customers in Western Canada. Guardian offers professional and reliable security for home, business or industry 24 hours a day, 7 days a week.

We install advanced wireless and wired equipment from top manufacturers to provide our customers with seamless systems that are customized to suit the customer's individual needs and budget. We are committed to work closely with the customer to guarantee an exceptional customer experience.


Focused on Service Excellence, Guardian utilizes the attributes of our people and advanced technology to be the consumers first choice for making homes, businesses and communities safer places to live, work and raise families. Guardian continually leverages it's strengths in order to reach its goal of being recognized as the security leader for personalized service and business excellence.


Our Salespeople and Technicians are trained seasoned professionals with industry certification in design and low voltage installations (i.e. Alarm panels, Surveillance systems, Access control, Multi room audio and structured wire). We Offer 24/7 on call service 365 days per year.


Guardian has showrooms/offices in both Lethbridge and Calgary where customers can view our products first hand and determine the best product to suit their needs and lifestyle. In addition customers can visit us at anytime during business hours for service or to ask us questions.

Learn More about Security Systems in Calgary

At Guardian Security Solutions, we are serious about protecting your family and your home, and we know you are too. Read through our blog to find useful information on security systems including home security, business security and much more. If you have any questions or would like to schedule your installation in Calgary or Lethbridge, give us a call today!

  • Surveillance equipment and insurance
    Can surveillance equipment save you money on insurance?

    Surveillance equipment plays a big part in keeping your property secure. Not only does it deter criminals, but it can also provide evidence in the case of a crime, help you avoid trip-and-fall lawsuits and improve the productivity of your employees. These aren’t the only benefits of security systems and cameras, however. In certain cases, they can even help lower your insurance rates. Here’s what you should know.

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  • Home Burglary
    5 steps to take after a burglary

    Nobody wants to arrive home or at the office to find a broken window or other sign of a break-in. Unfortunately, burglaries take place every day, and while you may hope it never happens to you, if it does, it’s important to know how to respond. Here are the five steps you should take if your home or business gets burglarized.

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  • Commercial Security Habits
    How to foster good security habits with your employees

    No matter what type of business you run, or what the size your team is, every company — including yours — should have some sort of security policy in place. 

    While your ideal security solution will depend on the sort of work you do, it’s important that all of your employees work together to keep your business safe. Here’s how to foster a culture of security within your team.

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  • Commercial security system
    5 signs it’s time to upgrade your surveillance equipment

    Are you wondering if your security system is in need of an upgrade? If it’s been awhile, chances are the answer is yes. In fact, most security equipment needs to be modernized at least every ten years or so. However, there are more concrete ways to tell if your system is outdated. Here are five signs that it’s time to replace it.

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  • Commercial Alarm System
    Why one-size-fits-all security solutions don’t work

    As a business owner, you should be wary of off-the-shelf security solutions. While universal remedies to security risks may make for good advertising copy, in reality, a one-size-fits-all approach is inadequate. Keep reading to learn why you should instead opt for a customized commercial security system or commercial alarm systems for your Calgary business.

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  • Indorr CCTV Calgary
    Keep Your Calgary Business Secure with Indoor CCTV

    Retail stores are an obvious target for thieves. With high-value merchandise and cash on premises, retail stores can provide easy opportunities for profit—at your expense. As a store owner, it’s essential that you have robust security in place, from intelligent alarm systems to commercial surveillance cameras (including both outdoor and indoor CCTV). Here are three of the most effective security measures for retailers to consider.

    Read More
  • Man installing a security camera on a brick wall
    The Interesting History of Home Security

    Home security has come a long way since the days of bloodhounds on the stoop and a musket at the door. 

    In fact, recent progress in home security technology approaches levels of sophistication only dreamed of in sci-fi movies!

    Read More
  • Smart Home security alarm system on a tablet
    How To Choose The Right Security System For Your Home

    For many homeowners in Calgary, installing reliable home security systems provides peace of mind knowing that their families are safe.

    At Guardian Security Solutions, we want to help you obtain the best security possible for your home. But before having security cameras installed in Calgary or Lethbridge, there are a few items to consider first.

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  • Security System
    How to Deal with Door-to-Door Security System Salespeople

    A security company's number one concern should be your peace of mind. And in the vast majority of instances, it is the case. Unfortunately, a tiny minority have not read the memo yet, and they tarnish an entire industry's reputation.

    Over the last few years, for example, an increasing number of alarm companies have resorted to door-to-door sales to bring in new customers. Though this might be a good way to inform people about new services, it has also led to a certain amount of unscrupulous activity. The BBB registered more than 3,000 complaints against alarm companies in 2009 alone!

    Read More
  • A person deactivating their alarm system by entering their pin code
    The Evolution of Alarm Systems

    After World War I, crime spiked throughout Canada and the US. As people became more sensitive to security needs, they began developing new ways of protecting themselves and their property.

    Read More

" Having used Guardian Security for many years in my business and at my home, I can attest that I have never received this quality of customer service from any other security company. Any question is answered quickly and any issue is addressed thoroughly. I would, and have, recommend Guardian to anyone. "

Tim Rempel

President of Operations/Publisher2R Inc. / Lethbridge livingere

  • SecurTek
  • Honeywell
  • Calgary Chamber of Commerce
  • Lethbridge Chamber of Commerce
  • ULC Certified
  • UL
  • Certificate of Recognition



4162 - 3961 52 Avenue NE
Calgary , AB
T3J 0J8

Phone: 403-233-7454

Fax: 403-265-2573 

Email: info@grdsec.ca


1513 3rd Ave S.Lethbridge, Alberta.

Phone: 403-320-0770
Fax: 403-320-0773

Email: info@grdsec.ca

Opening Hours

Monday - Friday: 8:00 am - 4:30 pm

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