The range of expertise at Thayer Corporation includes licensed professional engineers, master electricians, plumbers and technicians, sheet metal fabricators, and licensed journeyman installers and technicians.

We provide solutions for traditional commercial HVAC, plumbing and refrigeration systems as well as newer sustainable technologies such as biomass, thermal, solar, and geothermal.  Our long list of successful projects stretches from wood pellet boilers for schools in western Maine to ventilation systems for oil rig drilling in the gulf of Mexico.  We have installed heat recovery ventilators in commercial buildings, geothermal heating systems in group homes and the complete mechanical systems for high-rise office buildings.  Large or small, Thayer designs, builds and maintains proven solutions, guaranteeing both the work and performance of each and every system.  Most importantly, we guarantee the outcome of each project and service call.

Our Staff

Thayer Corporation maintains a full-time in-house professional staff.  Our staff consists of Licensed Certified:

  • Professional Engineers
  • Energy Managers
  • Indoor Air Quality Professionals
  • Master Plumbers
  • Master Electricians
  • Limited Electricians
  • CFC Level 4 Technicians
  • Gas Level 5 Technicians
  • Boiler and STM Engineers
  • Factory Trained Technicians
  • Lighting Specialists
  • Controls Engineers, Programmers, and Technicians

Scope of Services

Thayer Corporation provides turnkey design/build/maintain HVAC and plumbing systems including in-house:

  • HVAC systems installation
  • Plumbing systems installation
  • Refrigeration systems installation
  • Metal fabrication and installation
  • Building automation engineering & installation
  • Professional engineering services
  • Warranty and professional system maintenance programs