Heat Exchangers, Local Plumbing Services in Capital Region you are at Right Place. E.W. Tompkins Provide Best Plumbing Services. call . Mechanical contractors. Services include heating, plumbing, medical systems and laboratory systems installation. Heating installation services are available for boilers, heat exchangers, steam pressure reducing stations, heat recovery units, valve boxes, reheat coils, expansion tanks, fan coil units, cabinet heaters, computer room units and piping systems. Plumbing installation services ...