mechanical services, construction, mechanical contracting, design, build, maintenance, hvac, plumbing, refrigeration, certified welding, sewage and water treatment, boilers, process and power piping, prefabrication, sanitary lift stations, certified medical gas, domestic water booster stations, instrumentation and controls, fire standpipe systems, video pipe inspection, backflow certification, washington dc, maryland, virginia, upper marlboro

welch and rushe is an award-winning mechanical contractor providing construction and maintenance services to government, industrial and commercial customers