Over our 50 years in business, our focus has been on design build and design assist work. We have registered engineers in hou ... se with registrations in multiple states. We have performed design build/design assist mechanical work in 23 states around the country but for the last 10 years have concentrated on the Texas market. In addition to our engineers we have three in house AutoCAD designers who have all been with the company over 10 years. read more