National Mechanical Services, Inc. is owned by the Mortman family.

The tradition of service began when Richard Mortman established himself as an oil burner service mechanic in 1962. Immersing himself in the trade, Richard began his first boiler/burner company, Progressive Combustion, in 1968. Quickly becoming the Tri-State area’s choice for boiler installation, service and repair, Richard left Progressive to open R.D. Mortman & Co. (RDM) in 1980, inviting his brother Gary to join the firm and run the service department.

Throughout the 1980s and 90s, R.D. Mortman & Co. performed successful boiler plant replacements for many high-profile institutional clients, including the NYC Housing Authority and the New York City School Construction Authority. When deregulation set in, Keyspan Energy Management (formerly Brooklyn Union Gas) chose RDM as their first acquisition. RDM’s exceptional reputation made it an obvious choice for Keyspan, who purchased the firm in 1997. Richard remained to run the RDM division for four years.

Upon completion of their non-compete agreement and their contract with Keyspan, Richard, Gary and Richard’s two sons (Greg and Jeff) formed National Mechanical Services, Inc.  The new company opened at the site where RDM had begun nearly two decades before.

Today, National Mechanical, Inc. honors its longstanding family legacy by ensuring that a Mortman principal oversees every service-related aspect of the company, and is personally on site for every system installation. The current team serves many private/public and Institutional clients, and is a first-choice mechanical contractor for the Tri-State real estate community. National Mechanical also offers practical, affordable solutions for the heating and hot water needs of multi-family residential and commercial clients.

Over time, National Mechanical Services, Inc. has grown to offer the largest service department and fastest response times in the NYC boiler industry. Other unique company offerings include:

  • Boiler/Burner Installations with the finest attention to details
  • Immaculate, top-of-the-line mobile boilers for emergency use
  • One-stop-shop for boiler/burner repair and maintenance
  • Cost-effective oil to gas conversions

The accomplished principals at National Mechanical bring over 100 combined years of experience to the market, and the team includes field supervisors, engineers, master plumbers, certified welders and industry-best service technicians. To address client needs quickly, the company maintains a large supply network with access to virtually any burner or boiler part; in many cases, emergency parts service is available 24 hours a day.

Committed to total client satisfaction, National Mechanical has established a reputation for reliability, honesty and workmanship that’s simply unsurpassed by competitors. It’s the way we do business, and the reason we’re trusted by hundreds of loyal clients around the Tri-State region.

A Word From Our Customers

"As a long-term client of National Mechanical Services Inc, I can attest that Jeff and his team have always provided my company with excellent service. They bring a level of expertise to every aspect of the job they perform from minor repair work to complete boiler/burner installation. Their professionalism is only out matched by their responsiveness to any emergency that they encounter.

I would highly recommend National Mechanical Services Inc to anyone looking for a burner service company or is in need of a new heating plant."

Charles Hirsch, President of Milbrook Properties, Ltd.

Satisfied Client