HVAC National Accounts

Technician servicing HVAC equipmentOur national team of over 5,000 expert technicians works on virtually any brand of equipment in every type of facility in nearly every major US market. We provide our clients with geographically dispersed real estate portfolios the services necessary to efficiently maintain their HVAC/R systems across all of their locations.

Regional and local support

With over 60 regional operations providing local service and support, EMCOR Mechanical Services (EMS) can be the sole provider for all your commercial HVAC and controls needs. We believe in providing our customers with the expertise, resources, professionalism, and results of a national industry leader, with the attention and care of a local service provider. 

So, whether you need a partner to service your entire portfolio a local provider in your market, EMS has a solution for you.

We maintain and install: 

  • Virtually all HVAC makes and models
  • Water and air-cooled chillers
  • Rooftop units
  • Boilers
  • Cooling towers
  • Pumps
  • Air handling units
  • Refrigeration equipment
  • Data center precision cooling
  • Hydronic systems
  • Heat recovery systems
  • Direct expansion (split systems and rooftop packaged)
  • VAV systems 
  • Exhaust and supply fans
  • Make-up air units
  • Building automation systems

Benefits you can count on:

  • Guaranteed peace of mind. We self-perform 75% of all contracted work with EMS trained and certified technicians.
  • Customer solution centers. Just one call to resolve a problem.
  • National service agreements enable better pricing, service, and delivery.
  • Brand neutral. EMS chooses the best equipment solution for your facility.
  • Award winning “Be There for Life—ZERO Injury” safety program.
  • Largest independent mechanical services, building automation, and chiller services provider in the nation.
  • Strategic relationships with most major equipment manufacturers.