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Williams Electrical Mechanical Group is certified MBE, DBE electrical and mechanical engineering company providing technical, management, and directly related services to develop, manage, engineer, build and operate installations for customers. We provide a full range of mechanical and electrical contracting and testing services to end-users, housing developers, medical and health-care facilities, building owners and construction companies. We can furnish, install and maintain all data, electrical, mechanical, heating, ventilation and refrigeration system or combination of systems in a wide range of project types.

We offer owners a turnkey or design build service to make your construction project a success using the latest project management technology tools available, including Microsoft Projects and Primavera for our scheduling and document control. For more information regarding our firm’s offerings and services, please select from our menu on the left. Thank you for your interest in Williams Electrical Mechanical Group.


WEMG offers a variety of construction, management and testing services to ensure a comprehensive job done at the highest level of quality for each of our clients. Our engineers, managers, and builders have the years of education and real-world experience necessary to guarantee a project built correctly the first time. Our services include but are not limited to:

  • Construction management
  • Electrical construction
  • High voltage Termination
  • Rail Transportation and Catenary
  • Substation Design
  • Marine and Bridge Construction
  • Mechanical Construction
  • Electrical testing
  • Mechanical testing
  • Computerized estimates
  • Comprehensive cost evaluation


WEMG was founded in 2003. Having been in business for nearly 15 years now, we have established professional working relationships across New York, New Jersey Connecticut and beyond, garnering ourselves a reputation as the go-to-option for reliable, accurate, and sound construction and management services. We’ve handled projects in both the private and public sectors across a wide range of environments and building conditions, so our clients can rest assured we bring with us the experience and perspective necessary to ensure a sound, efficient build. We pride ourselves on operating as a minority-owned business, serving as a prime example of the benefits of diverse representation within the engineering and construction communities. We’ve seen nearly every type of project under nearly every set of conditions. Our experience and training in the industry mean that if we can’t help you, we can certainly point you in the direction of a trusted company that can.