Logical Solutions, Inc. (LSi) was founded in 1995 to provide engineering, installations, and services for the commercial and ... environmental controls marketplace in North Texas. Since that time, LSi has been proud to grow along with our clients; expanding our offerings to include advanced technology options for full building integration. Our services include building automation, energy management, access control, video surveillance, and HVAC/mechanical services. Today, we are committed to providing innovative solutions – always paired with our dedication to providing superior service. read more