Mark started with Bolls Heating and Cooling in 2004. Although, Mark has been working in the HVAC field since 1984. Prior to working in the HVAC field, Mark served his country in the United States Air Force. Mark has earned his NATE and EPA certifications. Being the install supervisor, Mark uses his experience to lay out new construction installations and oversee all commercial projects. Mark enjoys hunting, fishing, and coaching his son in baseball and basketball.