Cooper Mechanical Contractors has been serving Lee County and surrounding areas since 1940. We are a Heating and Air Conditioning company which also installs Ventilation & Exhaust Systems. Our professionally trained technicians provide quality repairs on all makes and models as well as new installations for residential, commercial and industrial systems. Looking for a Gas furnace? We are factory trained and certified to sale, service and install gas systems as well as electric. Ventilation & Exhaust Systems - Greenheck is the leading supplier of air movement and control equipment that includes fans, dampers, louvers, kitchen ventilation hoods, and energy recovery and make-up air units.