Experience

RM Thornton Service provides exceptional HVAC, plumbing and maintenance services throughout the D.C. area to ensure reliable building operations and extend equipment life. We are proud to have some of the most prominent commercial, industrial and institutional organizations as our clients:

  • Verizon
  • Citi Bank
  • Arena Stage
  • WJLA-TV
  • Novitex
  • Pitney Bowes
  • Christ Church (Alexandria)
  • Chartwell CC
  • Lockheed Martin
  • Our Lady of Mercy (Potomac)
  • High Road Academy
  • Old Line Bank
  • CBRE
  • JLL
  • Floridian Condos
  • Chesapeake Bay Beach Club
  • Jane de Chantel (Bethesda)
  • Orbital ATK
  • Northrop Grumman
  • Raytheon
  • Harris Crab House
  • Cal Ripken Jr.