Mechanical, Electrical and Plumbing Engineering Services. We are located off the Parkway near the Thornblade Area at 10 Parkway Commons Way, Greer, SC, 29650. Our professionals offer mechanical and electrical planning and engineering services to various clients in a variety of markets. We have served our clients in the public and private sectors by providing engineering solutions from the simplest to the very complex project design and construction opportunities. Repeat business is a significant and important part of our client base.