Modern commercial security systems for Washington, DC

Kastle designs, installs, monitors, and maintains commercial security systems for offices and buildings in Washington, DC. One accountable partner for your entire security program, from assessment through daily operation and support.

3,600+

Properties protected

50+

Years in
security

#1

G2, Spring 2025

24/7

Monitoring & response
Protecting over 1 billion square feet globally
The world's most trusted organizations traded juggling vendors for consistency, predictability, and ROI from one provider.
Local security teams on the ground in Washington, DC

Kastle is headquartered in Falls Church, Virginia, in the Washington, DC, metro area. In 2015, Kastle launched the CapitalShield program with the MPD, a public-private partnership that feeds commercial security camera footage to the DC Police. In April 2024, Kastle expanded CapitalShield to support MPD's Real Time Crime Center, committing over 1,000 existing cameras and donating 1,000 more to extend coverage across the District. With over 50 years in the business, Kastle has protected more than 10,000 properties and 60,000+ businesses across the United States and Australia.

Washington, DC

Serviced from Kastle's regional office and U.S.-based security operations center.

  • (855) 527-8531

  • 6402 Arlington Blvd, Falls Church VA 22042

  • 10-second average alarm response

local-seo_maps-washington-dc_3x2

One partner, every stage

Designed, installed, monitored, and maintained by one team

Trophy buildings in Washington, DC., posted a 16.0% vacancy rate in Q2 2026, compared to 21.9% across the broader market. Tenants are moving toward newer, higher-amenity spaces, and property owners competing for those leases are upgrading accordingly. Building security is part of that upgrade. A commercial security program that consolidates access control, video, monitoring, and maintenance under one provider reduces both cost and the coordination overhead of managing separate vendors for each function. For buildings repositioning to attract tenants from the shrinking federal footprint, that consolidation becomes a competitive requirement.

Site assessment and system architecture for commercial security systems in Washington, DC

Office vacancy in Washington, DC, has stayed above 20% for eight consecutive quarters as of Q1 2026. The overall rate was 19.7% at year-end 2025, above the 18.4% national average. Half-empty floors, departed tenants with active credentials, and unstaffed lobbies change what a building requires from its security system. A proper assessment maps every door, camera position, and credential zone to the building as it operates today, accounting for current occupancy and tenant mix.

  • Full walkthrough of every entry point, floor, and common area.

  • Camera placement planned around sightlines, lighting, and building layout.

  • Credential zones and permission levels defined before hardware selection.

Site assessment and system architecture for commercial security systems in Washington, DC
Download the free Commercial Security Guide

A guide for facility managers evaluating commercial security systems. Covers where buildings fall short, how access control and video work together, and how to create a better experience for staff and visitors.

  • Identify gaps in building security.

  • Access control and video integration.

  • Staff and visitor experience planning.

paidmedia_guide_commercial-building-security_3x2

Customer reviews

Why customers choose Kastle

Exceptionally rated for ease of use, set up, and support.

Rated 4.6 out of 5 on G2

9.3

Ease of use

#1

In physical security, spring 2025
  • Effortless remote access with stellar support.
    Ana C. Assistant Property Manager
  • Great products and fast, helpful customer service.
    Edgar G. Manager
  • Convenient phone-as-a-key access and a great visitor portal.
    Philanthropy
  • Excellent products and fast service.
    Paula E. Office Manager
  • User-friendly and smooth experience with always-available support
    Commercial real estate