Profile: Cowin & Co., Inc. provides mining construction. We also provide shotcreting & guniting, tunnels, shaft & slope, hoist & headframes, ventilation fans and bunkers. Tunnels for sewers, highways, railroads and hydroelectric projects. Bunkers are used in the mining industry to regulate and control the flow of material to the surface. We also offer site preparation, grouting & water control measures, exploration drilling, construction, setting of permanent equipment, machinery and piping.