100+ Shutdowns.
EVERY year.
On schedule. The boiler shutdown contractor of choice across North America since 1989.

National Boiler Services Launches Website: The website provides 24/7 access to boiler repair services, as well as detailed product information on various systems..Read More >

Experts in Boiler Repair and Maintenence

National Boiler Service has more than 300 years of combined experience and a professional and capable workforce of more than 10,000 to complete jobs safely, on time and with top-notch quality. Licensed to operate in 39 states, we execute more than 100 outages each year, providing installation, fabrication, and repair services vital to maintaining the life of your boiler system. View Services

Emergency Services

NBS is committed to reducing costs and safety incidents associated with sudden outages. We provide 24/7 emergency repair capabilities with NBS home office personnel coordinating all appropriate manpower and tooling to ensure maximum safety and minimal downtime. View Services