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 About Us

Greater Portland and Lewiston-Auburn Areas

Welcome to Thayer Corporation!

Call in the Experts! Since 1981, we have been providing award-winning service to homeowners and businesses throughout Maine.

We offer residential Home Performance Contracting solutions that increase your in-home comfort, health and safety and significantly reduced your energy usage and utility bills. Since 1981, we have also been providing premier and dependable air conditioning repair, service, sales and installations. We’re excited to be a part of the GreenHomes America family which has improved the comfort and energy efficiency of over 10,000 families like yours!

  • Serving Maine, from the Portland area through Lewiston-Auburn

Thayer Corporation
"Call in the Experts"

1400 Hotel Road
Auburn ME 04210 
Toll Free: (800) 649-4197

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General Manager:

Dan Thayer

Services
  • Comprehensive Home Energy Assessments
  • Cooling & Heating Equipment (Repair, Installation & Tune-ups)
  • Hot Water Systems
  • Indoor Air Quality Solutions
  • Insulation (Wall & Attic) and Air Sealing (Air or Duct)
  • Solar Thermal
Whole-House Approach

Thayer Corporation, a GreenHomes America Partner, offers residential Home Performance Contracting (HPC) solutions that increase in-home comfort, health, and safety and significantly reduce energy usage and utility bills. We apply building science principles and sophisticated diagnostic equipment to quickly pinpoint causes of common problems and prescribe cost-effective solutions that resolve them permanently.

What sets us apart from the many other residential building contractors is our innovative use of an integrated, whole-house approach to home performance and energy efficiency. Our unique HPC methodology allows us to go beyond the usual HVAC and specialty contractor guesswork and quickly and accurately solve a home’s comfort and energy efficiency issues.

Beyond the principles of HPC, GreenHomes’ and Thayer’s business model also employs a unique business methodology built on strict adherence to quality, process, technology, education, and standards. This exclusive methodology allows us to raise the bar on service delivery for the entire industry by consistently providing high quality service to every customer every time.

Get started today by having a Home Performance Assessment scheduled as your first step in identifying where you could be saving money.

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  • Ask us how to receive up to $1,500 back to slash your utility bills!





Maine State Incentives
Federal Rebates
Energy Certified Professionals

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We are very happy with the results of our GreenHomes improvements. Their whole-home approach really works and we will gladly recommend them to everyone we know.

Matt & Clare Venegas