About Us

AMS of Maryland is one of the largest commercial HVAC service and construction companies in the greater D.C. metropolitan area. The Company currently employs approximately 105 persons, most of whom are engaged in field work, performing services directly for customers. AMS of Maryland is a signatory to a trade agreement with United Association of Steamfitters Local 602, and the Company draws its technicians from the 602’s skilled labor pool. As a signatory to the labor agreement, the Company is able to multiply its forces quickly as circumstances demand. Additionally, the AMS of Maryland operations are supported by a parent company, which provides a number of shared services, such as Human Resources, Risk Management and Accounting. The Company is also a member of an affiliated group of ten companies which are able to provide resources and expertise to AMS of Maryland on an as-needed basis.

AMS employees remain current in developing HVAC technology, equipment, processes, and safety through a variety of sources, including training in-house, through UA Local 602 and through vendors. Several persons on the AMS management team are instructors at the UA trade school.

  • AMS offers 30 years of service ….. Over 25-years experience in the HVAC trade.
  • Superior, union-trained workforce, which can be readily expanded to meet emergent needs.
  • Quality performance history on all phases of HVAC work—preventative maintenance, retrofit, renovations and ground-up construction.
  • A+ financial strength.
  • Consistent revenues exceeding $30m/year.
  • Large bonding capacity.

TestimonialsView All

I would like to thank your company for doing an excellent job. Over the years I have worked on many projects with Tri-Pacific/AMS Heating and Air. It is with great pleasure that I would highly recommend them, and look forward …...
Director of Facilities
Southern California Real Estate Services would like to thank Tri-Pacific / AMS for making our lives a little easier by giving our tenants great quality service. The AMS staff is friendly, knowledgeable, and great to work with. Their prompt service …...
Assistant Property Manager
Southern California Real Estate Services
A special thanks and outstanding service recognition went to two AMS employees who reported a missing lock box containing keys to a Littleton Bank location of Wells Fargo. “They exemplifiy the kind of vendor we want to partner with, one …...
Regional Maintenance Manager
Regional Environmental Coordinator
Wells Fargo

Ty Molliconi

Regional Property Manager
Wells Fargo
American Mechanical Services and Holden MSS began its relationship during a bid process for corrective work in our Denver location. They spent long hours researching our issues and came to the table with honest, well-supported solutions. Through this process a …...
Facilities Manager
Holden MSS - Marketing Support Services
ACA Denver Boiler delivers outstanding value and customer service but most important is ACA’s commitment to keep your systems in peak operating condition at all times. They have impressed everyone with their flexibility and willingness to conquer every situation that’s …...
Senior Property Manager
Newmark Knight Frank Frederick Ross
I just wanted to take a moment to thank everyone at AMS for your continued support, and service to the operations here at FedEx Field. It is always such a pleasant experience to call on AMS. From the initial greeting …...
Lead Engineer at FedEx Field
Home of the Washington Redskins
AMS Mechanical Services has been our HVAC service and installation provider for the past 13 years. They also provide the industrial piping installation for our plant. We have found their expertise and response to be excellent.
Facilities Manager
Indiana Automotive Fasteners
Right from the start, in August of 2007, American Mechanical Services impressed us with their efficient, professional manner – an approach that not only inspired confidence – but also generated the results we were looking for. We found that the …...
SJLL Enterprises, LLC
AMS has been providing HVAC services to me for more than 15 years. Originally with another company and for the past 7 years here at Solex Contracting. Their service and quality has always been top notch. Whether doing a complex …...
Solex Contracting Inc
We have used American Mechanical Services as our exclusive HVAC contractor for over 6 years. They have proven time after time that they will do whatever it takes to solve our problem. It has never taken them more than 1 …...
Chief Engineer
BET Networks