About

Thayer Corporation is a leading design/build/maintain mechanical contractor serving commercial, institutional, industrial and residential clients with a broad array of integrated design and product solutions. Custom fabrication, alternative energy solutions (including biomass, solar and geothermal) and in-house design are strengths. In addition to our home region of Maine and New Hampshire, we serve the greenhouse industry and important industrial clients on a national and international basis. We have recently added capabilities in energy auditing, weatherization and lighting energy retrofits.





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