V-SYSTEMS·MONDAY, MAY 18, 2020·Beginning in 1951 as the Trew Company, V-Systems was established in the year 2000 and has been a leading manufacturers' representative firm providing a wide variety of equipment and service to the HVAC, Plumbing, Wholesale, and Design-Build industries in Western Pennsylvania and parts of Maryland, West Virginia, and Ohio for over 30-years. We are committed to providing extraordinary customer service and innovative solutions.