Established in 1989 with a focus on safe, quality production, National Boiler Service is the boiler shutdown contractor of choice for power producing plants throughout North America. NBS averages 120 outages and 800,000 project hours annually, devoting more than 300 years of combined experience to servicing and installing industrial boilers and essential equipment. Licensed to operate in 39 states, NBS has the experience and a professional and capable workforce database of more than 10,000 to complete jobs safely, on time, and with top-notch quality.