Certasun. No Surprises.
Certasun serves customers in Illinois and Wisconsin. We’re 100% committed to an exceptional customer experience. That’s why all customers get our No Surprises Guarantee:
- We will clearly and honestly explain how residential solar works and its economics.
- We will give you unbiased advice about the pros and cons of different types of solar financing.
- We will handle all the details and costs of permitting, grid interconnection, scheduling, and construction.
- We guarantee your system will be installed by a team of well-trained professionals.
- We will use the world’s best solar panels, from SunPower. Read about what makes SunPower great.
- We will leave your home as clean or cleaner than when we arrived.
- Your roof will not leak as a result of our installation.
- We will guarantee your system will perform as intended over its lifetime.
Our Team
Meet the Certasun team! (At least some of us.) We’re with you from start to finish. Please don’t ever hesitate to give us a call.

Service Area
Certasun serves northeastern Illinois and southeastern Wisconsin.
Illinois
Our Illinois service area includes the entire Chicagoland area, as far as Bourbonnais to the south and Rockford to the west. This specifically includes Cook, DuPage, Kane, Lake, McHenry, and Will counties as well as parts of Boone, DeKalb, Grundy, Kankakee, Kendall, and Winnebago counties. Certasun is headquartered in Buffalo Grove, IL.
Read about Illinois solar incentives.
Phone: (312) 638-0800
Wisconsin
Our Wisconsin service area includes the Milwaukee area and south, including Kenosha, Milwaukee, Racine, Walworth, and Waukesha counties. Just outside our service area? Don’t hesitate to ask if we can build your solar system.
Read about Wisconsin solar incentives.
Phone: (262) 258-2640
Careers
We’re hiring! Check out our careers page for more details on our open positions and what it is like to work at Certasun.
Our Management Team

Josh Lutton
Founder & President
Email: [email protected]

Jesse Feinberg
Co-founder
Email: [email protected]

Iain Drummond
VP, Operations
Email: [email protected]

Mike Hines
VP, Finance & Administration
Email: [email protected]
Our History
We’re residential solar experts. In 2009 our president, Josh Lutton, founded Woodlawn Associates, a management consulting firm described by one client as the “premier consulting firm in the residential solar industry.” While at Woodlawn, Josh and many of us at Certasun consulted with some of the largest and most successful solar installers, equipment manufacturers, and financiers on how to better operate their businesses. Now, we’re excited to be working here in the Midwest!
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