About Guardian Security

Guardian Security is the first choice for security in the Pacific Northwest for public buildings, office buildings, warehouses, homes, schools, hotels and hospitals. Our customers have included local and national names that you know and trust.

Serving Washington State For Over 40 Years.



From our Seattle-based Central Station, we serve one of the largest customer bases of locally monitored accounts, coordinating dispatch of police, fire, and medical emergency services for our customers.

Frank Close, CEO


No other security company can match Guardian's range of experience in integrated system design. And because we also install and service the systems we design, we understand the value of intelligent and farsighted planning. 



Our company employs over 170 residents in Washington State. We are committed to supporting our region. Locally owned and operated, we’re big enough to do the job, but small enough to care about the details of your system.

We design, install, and service all types of systems.

Guardian Security starts out two steps ahead of other life and property protection companies. We design, install and service virtually any type of system you might need from fire, security and alarm, to access control, video security and central station monitoring.

From simple setups to highly specialized systems, we're one of the only companies that has the experience to completely handle all your needs.

Instead of having redundant controls, procedures and systems to learn and monitor, we integrate your systems so they're simple, easy to learn and efficient to monitor.

Komo Plaza

First to integrate audio, video, access control, and door security with full control capability on one PC, in a graphic-user-interface package at Seattle’s KOMO Plaza (formerly Fisher Plaza), a 294,000-square-foot, two-building, multi-use facility.

Bellevue City Hall

First in the Northwest to install an analog addressable system at the City Center Bellevue building, which includes 27-stories of Class A office space.

Benaroya Symphony Hall

First to obtain approval for National Fire Protection Association (NFPA) positive alarm sequence for installations including Seattle’s Benaroya Symphony Hall and KOMO Plaza. 

Microsoft Redmond Campus

First to network multiple addressable buildings, including the Microsoft Redmond campus, Veterans Affairs Puget Sound Health Care System – Veterans Hospital Beacon Hill, and the Grand Coulee Dam.

One Provider, Many Brands

Unlike some "one brand" companies, we're free to choose the best equipment available on the market - no matter what brand it may be. We can inspect and test nearly all makes of equipment, not just those we install. And we can repair and maintain most makes that are out there.

We often get called when customers can't get the support, service or parts they need for their existing systems, or when the challenge of adding or updating equipment and systems is beyond the capabilities of other companies. At Guardian, it's our job to keep you up and running, and we do it with competitively priced service that fits within your daily operating schedule and budget.

The Brightest Engineers

Custom Security Solutions


About Us

Based in Seattle with service centers across the state, Guardian is a locally-owned and operated company with a strong commitment to the people and communities we serve. Established in 1976, Guardian specializes in comprehensive security, fire and life safety systems for installations ranging from single-family homes to major retail centers.


Corporate Headquarters
1743 First Ave. South
Seattle, WA 98134

Local: (206) 622-6545
Toll Free: (800) 282-6998