Welcome

Royal Steam Heater Co., founded in 1889, is a family-owned and operated, full-service mechanical contracting firm. 

We proudly service commercial and industrial clients throughout Massachusetts, providing plumbing, sprinkler testing and maintenance, boiler installation and maintenance, sheet metal fabrication, and welding and pipefitting services. Additionally, we provide services under Massachusetts and Federal government contracts.

Royal Steam Heater Co. employs union plumbers, pipe fitters, sheet metal, and fire protection workers.  

With over 135 years of construction experience, we pride ourselves on a reputation that is second to none. Through our strong workforce and experienced management team, Royal Steam Heater Co. strives to consistently provide each and every client with the highest quality of service in the industry.

Please contact us at 978.632.0770 or Email Us to discuss how we can help make your next project successful.