Certasun Logo



It’s Time to Turn Sunlight Into Savings

(312) 638-0800

Headquartered in Buffalo Grove, Illinois, Certasun is the premier home solar company serving homeowners in Illinois and Wisconsin.

Why work with Certasun?

World’s Most Powerful Solar


We exclusively install SunPower Equinox, the most powerful, efficient, attractive, and durable solar equipment available.

The Most Care


Certasun has the highest standards for aesthetics and professionalism.  We guarantee you’ll have an exceptional customer experience.


No Surprises


We’re committed to serving you honestly.  We will not sell you more than you need or mislead you just to make a sale. Check out our No Surprises Guarantee.

Certasun Exclusively Installs SunPower

When you choose to go solar, you should expect your system to last decades.
That’s why Certasun exclusively installs the SunPower Equinox solar system, which includes the world’s most powerful, attractive, and durable solar panels.

World’s Most Powerful Solar for $0 Down

Want to start saving right away?  We offer financing options with zero up-front cost and a low monthly payment that will save you money every month.  Literally, your solar cost can be less than what you pay for electricity today.

Or, you can pay for the project out-of-pocket.  The choice is yours!



Enter your information below to set up a free virtual consultation and to receive a quote.

"*" indicates required fields


Thinking about an electric vehicle?

We can help.

(312) 638-0800
Certasun Installs Tesla Car Charger