Specializing in insulation, HVAC, Sheet Metal and Scaffolding, Triangle is a strong and diverse company with an outstanding reputation for safety, quality and performance. Our mission is to excel in the construction industry by exceeding customer expectations through the use of extraordinary people, exceptional products and progressive management. With over sixty-five years of experience and an average of 350 employees, Triangle has the manpower, facilities, and experience necessary to safely and reliably complete your projects at the best value possible.