Mark began working at Bolton while still in high school in the early 2000s. Among other construction jobs, Mark worked summers at Bolton while earning his Mechanical Systems Engineering Degree from the University of Wyoming. In January of 2010, he joined the Bolton team full time. Mark has experience in plumbing, electrical, and heating and air, with a majority of his experience in heating and air. Outside of work, Mark enjoys fishing, woodworking, and surfing.