Security For All 


As Colorado’s most trusted security & surveillance company for four generations, A-1 secures your business and home with precision, so you can focus on everything else.



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Commercial Solutions

Our fully-integrated solution allows you to monitor and control your business through a single, mobile-friendly interface, all while protecting your bottom line. With just a few clicks, you can secure your system, view live-streaming video, manage employee access, regulate


  • Access Control Systems
  • CCTV & Offsite Video Recording

  • Commercial Fire Safety

  • Environmental & Energy Monitoring

  • Multi-Location Services


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“A-1 receives raving reviews from all of the clients I have referred them to! They are someone I will continue to refer to because they offer new high tech solutions other companies don’t, they have a passion for protecting the community businesses and helping them grow their business, and they are committed to excellence in all areas of life.”

-Nicole Winsauer, Live Urban
Real Estate 

“Sofia Aguilar and her team at A-1 Security have consistently gone the extra mile to install a complex access control system that integrates with our Time and Attendance system, as well as our control system.”

Steve Barton – Southern Wine & Spirits of Colorado

“I would recommend A-1 Security to anyone looking for a security solutions provider that goes the extra mile to take care of customers. Their training and the user-friendly system allowed me to use the system with confidence. However, if I do need help or if I am out of town and our company needs to modify access needs while I am away, we know that the A-1 Security team is just a phone call away.”

-Randy Dunton, HOA Community Manager, MSI

Multifamily Complex Solutions

Bring your residents peace of mind and Security with specialized systems for shared walls. From the highest quality fire alarm systems to integrated home security, A-1 gives you the amenities that set your residence apart from the competition. 


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    Residential Solutions

    We know what matters most. At A-1 Security we work 24/7 to protect you, your family, and your home. Spend less time worrying about what’s going on in your home and more time enjoying it with our custom-designed security solutions!


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    Home Management

    Your home should be a refuge for you and your family. Our interactive security systems provide a smarter way to protect your family with an easy-to-use lifestyle management tool.


    What’s Happening In Your Home Right Now? Our home monitoring solutions give you instant piece of mind. We have a wide selection of cameras and motion and image sensors for your home.

    Fire Safety

    Fire can destroy a home in minutes, and put your family members and pets at serious risk. Protect what matters most – your life and the lives of your loved ones, with a monitored fire system.