Kastle, your Premier Managed Security Provider in
Denver, CO.

720.765.6543

​​​Kastle is a premier managed security service company in Denver, CO. Leading the security industry since 1972, we provide state-of-the-art security solutions for clients across Colorado, the nation, and the world protecting more than 2 million people across 10,000+ locations globally.

Our Denver security experts offer a suite of integrated solutions including access control, video surveillance, visitor management and identity management, as well as mobile security applications – all integrated on an open, standards-based platform and supported by a team of experts 24x7x365.

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Address
1355 S. Colorado Blvd.
Suite C113
Denver, CO 80237

Business Hours
Monday-Friday: 8am-6pm
Saturday-Sunday: Closed

Monitoring Center
Monday-Sunday 24/7

Kastle’s Denver office is located along South Colorado Boulevard in southeast Denver with convenient access to Interstate 25 and Interstate 225. This central location provides efficient connectivity to the Denver Tech Center, downtown Denver, and surrounding communities throughout the greater Denver metropolitan area.

Directions from
Downtown Denver, CO:

  • Take I-25 South toward Colorado Springs.
  • Exit at Colorado Boulevard.
  • Turn left onto S. Colorado Boulevard.
  • Continue for approximately 2 miles. Kastle’s office will be on the right.

Directions from
Denver Tech Center (DTC):

  • Take I-25 North toward Denver.
  • Exit at Colorado Boulevard.
  • Turn right onto S. Colorado Boulevard.
  • Continue for approximately 1 mile. Kastle’s office will be on the right.

Directions from
Aurora, CO:

    • Take I-225 North toward Denver.
    • Merge onto I-25 North toward Downtown Denver.
    • Exit at Colorado Boulevard.
    • Turn right onto S. Colorado Boulevard. Kastle’s office will be on the right.

 

Cities and communities served: Denver, Aurora, Lakewood, Centennial, Greenwood Village, Englewood, Littleton, Westminster, Arvada, Thornton, and surrounding communities across the Denver metropolitan area.

Kastle supports a broad range of properties across Denver, including Class A office buildings, multi-tenant campuses, mixed-use developments, residential high-rises, and government or civic facilities. Our solutions are designed for both new construction and existing buildings looking to modernize their security.
In Denver, Kastle provides enterprise-grade access control solutions that include cloud-based access management, mobile credentials for smartphones and wearables, key fob systems, and tailored visitor management. Kastle’s access control solutions are scalable, supporting everything from single buildings to large multi-site portfolios while maintaining high levels of security and operational efficiency.
Kastle provides AI-enabled video surveillance systems with IP cameras, cloud and edge recording, and centralized video management. These systems integrate with access control and analytics to give property teams clearer visibility and faster response to events.
Kastle provides AI-enabled video surveillance systems with IP cameras, cloud and edge recording, and centralized video management. These systems integrate with access control and analytics to give property teams clearer visibility and faster response to events.
Yes, Kastle offers professional monitoring services in Denver supported by trained security operations teams. Monitoring options include 24/7 alert monitoring and escalation, real-time incident notifications, and AI-driven event filtering to reduce false alarms.
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How can I get started with Kastle in Denver?

Getting started is simple:

  1. Contact our security specialists by calling 720.765.6543 or filling out this form.
  2. We’ll schedule a site consultation and security assessment.
  3. You’ll receive a custom proposal aligned to your goals, budget, and timeline.
  4. Deployment and onboarding are coordinated to minimize disruption.
  5. Ongoing support and performance reviews help you optimize your security program.