About us
Who is Ion Solar Pros (iSP)? iSP is a comprehensive solar energy company located in Middlebury, Connecticut. Established in 2017 by Bill Barrieau, iSP has steadily risen to become one of the leading solar energy providers in the region. The company specializes in designing, installing, and servicing solar energy systems for thousands of customers across Connecticut, Massachusetts, New York, and beyond.
Relentlessly innovating, Partnering with the Best
2023, 2024 Better Business Bureau Serving Connecticut
Innovative Marketing Award Winner
In 2023, iSP was proud to receive the Better Business Bureau (BBB) Award for Connecticut, recognizing our commitment to excellence, customer satisfaction, and ethical marketing. This honor reflects our dedication to transparency and integrity in every interaction. As a trusted solar leader, iSP empowers Connecticut families with reliable, clean energy while driving a brighter, more sustainable future. In 2024, iSP was announced the consecutive winner of this prestigious accolade.
Tesla Energy Certified Installer
iSP is proud to be a Tesla Certified Installer, officially authorized to offer and install Tesla equipment, including Tesla Inverters and the cutting-edge Powerwall 3.
Solar Insure Certified Provider
iSP partnered with Solar Insure to offer 30-year warranties on select PowerHouse Systems. Ask your sales representative about eligibility
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Customer Support Email
Customer Support Direct Line
751 Straits Turnpike Suite 2000, Middlebury, CT 06751