Maine Interfaith Power & Light

Osher Environment Systems logo Osher Environment Systems are home energy efficiency experts. Their mission at Osher Environment Systems is to provide friendly, professional, ethical, and quality-conscious home energy efficiency auditing and weatherization services. We provide our clients with up-to-date information and services that help them reduce their home heating and cooling costs and at the same time, lower their impact on the planet.

OES’ professional services include energy efficiency evaluation, air sealing, insulation installation, heating system conversions and upgrades, and general contracting.  To learn more about their work, visit:


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P.O. Box 204 - Orono, ME 04473 /
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