History Of Boundary Fence Established in 1973, Boundary Fence & Supply Company located in Denver, Colorado is still owned and operated by Darrell and Kathi Unruh. With over 45 years of experience in Denver and the surrounding areas, our customers can depend on quality. We have set the standard in residential, commercial, and industrial fencing. Because we are family owned and operated, we take pride in the quality of our products and in the service we provide our customers. Our company is licensed and insured. In addition, all city permits are obtained when necessary by our company. Boundary Fence also takes care of all public utility.