Providing a positive influence in the community by protecting life and property.

Security Technology Group’s president Joe Agreste has over 40 years of security experience working with businesses nationwide.  He has dedicated his career to providing reliable security, life safety and technology solutions.  Joe has been key in growing multiple alarm companies from startup to multi-million dollar operations. 

His knowledge and experience are unmatched by most vendors.  He has provided long term security and technology solutions for companies such as Harbor Group, Thalhimer, Colliers, The Runnymede Corp, The Miller Group, Divaris and many more.  Joe’s portfolio also includes K-12, colleges and universities, state and local agencies, military bases, and US Embassies.

Backed by Christian partners, Joe has assembled a team of security experts giving STG a solid foundation.  STG’s  mission is to provide an environment of Christian core values to positively impact the community by protecting life and property, improving the lives of its employees and customers, and maintaining a healthy, enjoyable work environment.


Putting customers first. Protecting your assets.

STG is dedicated to:

      • Educating our customers so they fully understand a wide-variety of industry solutions to make the best choice
      • Providing comprehensive, reliable solutions at competitive prices
      • Creating long-lasting trusted business relationships by being honest and dependable
      • Deploying leading-edge technology solutions that are easy-to-use
      • Providing alarm solutions that are worry-free, reliable and minimize false alarms
      • Delivering a solution that lessens liability and increases reliability
      • Offering support services that cater to the timely needs of our customers
      • Protecting what matters most!


We maintain the highest standards of quality and expect nothing less!


Our customized security systems are designed for your space.  We integrate proven components that meet strict industry standards to create your individual system.


Our team is composed of employees that are vetted through the Virginia Department of Criminal Justice Services, meeting rigid standards for the alarm industry in our state.  Our team is trained and educated on the latest technologies and product solutions.


STG provides 24 x 7 manned response, alarm, video and digital monitoring service.  We also offer Active Maintenance Agreements to keep your systems performing like new.