Built on the Job Site. Not in a Call Center.
Westminster Security Systems is a hands-on, owner-operated security installation company. Every job is done by a licensed technician who shows up, does the work, and stands behind it.
Who We Are
Our Story
We started Westminster Security Systems because we kept seeing the same problem: business owners getting handed off between a locksmith, an electrician, and an IT vendor just to get a door secured. Nobody owned the whole job, and the result was always a mess of finger-pointing and half-finished installs.
We built this company to be the one contractor who handles everything — the mechanical hardware, the low-voltage wiring, and the access control software. One call, one crew, one invoice. That's it.
We're based in Westminster and travel across Colorado for commercial jobs. Whether you have one storefront door or a multi-site deployment, we scope the work honestly and install it right the first time.
Where We Work
Service Area
We're based in Westminster, CO and serve commercial properties across the entire state. Common service areas include:
Denver Metro
Denver, Westminster, Westminster, Arvada, Thornton, Northglenn, Commerce City
Boulder County
Boulder, Longmont, Louisville, Lafayette, Erie, Superior
Northern Colorado
Fort Collins, Loveland, Greeley, Windsor, Johnstown
South Metro & Beyond
Aurora, Centennial, Littleton, Englewood, Castle Rock, Colorado Springs
Don't see your city? Call us — if it's in Colorado, we'll come out.
Let's Talk About Your Doors
We'll come out, assess your entry points, and give you a straight quote. No upselling, no surprises.