Security Unlimited has been providing custom installations in the Baltimore - Washington Region since 1976.  We are a regional installation, service, and monitoring company. Service is typically provided for that day or the next day. Personal service, the same installers and sales staff provide service support down the road. No “revolving door” employees or subcontractors. Security Unlimited  offers many solutions for home and business protection. We strive to ensure the protection of your premises in a cost-effective manner, which incorporates your lifestyle and or business needs, simultaneously.