Construction Promec Inc. offers recognized expertise in Electricity and Instrumentation, Power Substations and Lines, Industrial Piping and Plumbing, Power Stations and Industrial Mechanics. Construction Promec is one of the largest construction companies in north western and northern Quebec, with regional offices in Rouyn-Noranda, Montreal and Calgary. For the past 25 years, we’ve completed projects in various sectors such as mining, metallurgy, wood processing, pulp and paper, public utility, environmental, electrical power lines and substations and oil sands and refineries sectors.