COVID-19 Update:

To protect the health of our staff and our customers, Efficiency Vermont offices are closed to the public. We have cautiously begun scheduling project related site visits when required. You can find more information on our safety protocols here.

We know that you need support in reducing energy costs now more than ever, and we will continue to launch new offers and programs over the course of the summer. In the mean time, our customer support team is available to help you remotely. Contact us at (888) 921-5990 or

EER (Energy Efficiency Ratio) is the efficiency you can expect from your air conditioner at peak cooling time and SEER (Seasonal Energy Efficiency Ratio) is an average that takes into account the highs and lows of a typical home’s cooling pattern. The SEER is typically the best measurement for comparison of air conditioners in Vermont.