Ron's Electric & Plumbing Inc

Founded in 1932, Proctor Mechanical is a mechanical contractor specializing in underground utilities, plumbing, pipefitting, welding, air conditioning, sheetmetal and temperature controls. The company offers a variety of building design, mechanical engineering, drafting services, part design and fabrication for offices, medical clinics, warehouses and factories. Its services division provides various commercial and residential services, such as emergency service, backflow installation and testing, heating, cooling and refrigeration, installation and repair, stop boxes, and water and sewer line replacement. The company provides heating, ventilation and air conditioning services for various systems, such as commercial roof top units, new residential installations, boiler and mechanical piping, carbon monoxide testing, sheet metal installs, air balancing, and refrigeration, gas heating, ventilation systems. Proctor Mechanical is located in Des Moines, Iowa.

Founded in 1935, Stroh Corporation is an electrical contracting firm that provides a range of services for various commercial and residential projects. The company provides electrical construction, engineering, voice data installation and maintenance services for industrial, commercial, institutional and research facilities. It offers a range of electrical consulting services for systems, such as telephone equipment and lighting, fire alarms and ground systems. Stroh Corporation has achieved ISO 9001:2000 certification from the International Organization for Standardization. The company also provides design and installation services.