Spencer Bristol Engineering is a consulting engineering firm providing Mechanical, Electrical, Plumbing, Fire Protection, Process Piping design and Commissioning Services.

Since 1995 we’ve been delivering practical, reliable engineering solutions to leading architects, design/build firms, leaders in industry and transportation, and a long list of local governments and education systems.

The engineers of SBE are an accomplished group of design professionals averaging more than 25 years’ experience in their respective disciplines with the knowledge and experience to design and manage projects of all sizes and complexities.

We offer a full portfolio of design services including:

  • Heating, Ventilating and Air Conditioning (HVAC) Systems
  • Lighting Systems
  • Power Distribution Systems
  • Fire Protection and Life Safety Systems
  • Communications Infrastructure
  • Plumbing
  • Process Piping Systems
  • Facility Assessments and Lighting Studies
  • Master Plans
  • Commissioning

In 2017 SBE joined Gray Construction as part of the Gray family of companies.



Firm Credentials

Our Memberships and Affiliations:


Association of Physical Plant Administrators


American Society of Heating, Refrigerating and Air Conditioning Engineers


American Society of Mechanical Engineers


American Society of Plumbing Engineers


Institute of Electrical & Electronics Engineers


Illuminating Engineering Society


National Fire Protection Association


U.S. Green Building Council

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