Security Systems & Services in Washington, DC

Comprehensive list of Washington, Washington D.C. based companies offering installation, maintenance and repair of home and business security systems, CCTV & burglar alarms, guard and video surveillance services.

Business Listings

Established in 1982, Sentry Installation. has been working with customers to supply security solutions for over 29 years. We are one of the biggest, independent, locally owned & operated security firms in the Washington, DC metropolitan area. We primarily install First Alert Professional Security Systems a division of HONEYWELL. these state-of-the-art systems are among the finest within the industry.


We distinguish ourselves by prompt and expert response to our clients requirements. Founded in 1975, SFC Systems. supplies superior service to Washington DC Metropolitan area residents and businesses. We currently serve our valued clients in multiple industries and domestic areas out of our locally owned & operated Washington DC metropolitan head office.


Jenkins Security Consultants. has been a leading security services supplier in the Washington Metropolitan Area since 1994. Our agency is comprised of a staff of serious, trustworthy, and responsible officers who are committed to delivering you with only the highest protection. Rest assured in knowing that our whole team is highly trained and certified, licensed and bonded, and supervised daily.



Stanley Security Solutions offers one of the world's most comprehensive lines of services, industry-leading products and cutting-edge technologies. With a powerful portfolio of top security brands and services specialized to suit client requirements, we deliver complete, customized solutions for any size facility.


The American Homeland Security Consulting Group is an expert services agency comprised of former Federal agents of the U.S. Departments of Homeland Security, Justice and Treasury. We employ a network of former ATF, Customs, DEA, FBI, ICE, IRS and Secret Service agents, as well as noted experts on homeland security, executive protection, vulnerability assessments and critical infrastructure protection.


Call us today for locksmith and lockout services and security systems from our experts in Washington, D.C. Why Trust Us? Entrust the security of your property and valuables to the experts at DC Master Locksmith in Washington, DC, who supply reliable locksmith services, security systems, and door hardware installation.


We're focused on delivering customized, cost-effective solutions for maximizing your security utilizing the most advanced and reliable equipment. We provide service for any equipment that we install or takeover and supply 24hr-a-day monitoring. ASC is a member of the Better Business Bureau of DC.


Find out why we currently have the highest customer retention rate within the industry: Your firm deserves Guardsmark excellence. To reduce risk, businesses must be aware and prepared. As experts in today's security challenges, Guardsmark prepares its customers and employeesfor all possibilities. What's the sound of a million-dollar loss? It was a tiny noise, but the Guardsmark patrolling officer noticed.


State Locksmith is dedicated to supply you with the fastest and most reliable Locksmith services and security System. Our specialists will guarantee efficient assistance with domestic, commercial, and automotive security services. It is important to point out that maintaining security in domestic and commercial areas as well as in automobiles is the main objective of locksmith trade.