Best Solar Company Serving Illinois and Wisconsin
Free Consultation
Reserve an online consultation with an expert at a time that is convenient for you.
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Free Consultation
Reserve an online consultation with an expert at a time that is convenient for you.
"*" indicates required fields
Certasun is a top-rated solar company serving the Chicago and Milwaukee areas. We provide residential solar, battery storage, and EV charger installation with integrity and professionalism.
6
Years in Business
2500+
Solar Projects
What Makes Certasun The Best Solar Company in Illinois and Wisconsin?
We do everything in-house
It is not possible to guarantee a great customer experience when important parts of your project — such as sales, installation, or incentive processing — are handled by subcontractors.
Our interests are aligned with yours
We guarantee the energy production of your system over its lifetime. We also guarantee you’ll get the incentives you see in your installation agreement.
Your system will look great
We don’t take installation shortcuts. Don’t assume all solar panel installations look the same — they don’t.
You decide how to pay
We will advise you on available financing options, but won’t push you to use any one of them.
Going Solar Is As Easy as one, two, three!
Reserve A Free, Online Consultation
Fill out the form below to speak with an expert at a time that is convenient for you.
Before your consultation, we’ll build a 3D model of your home and generate a solar energy production estimate.
Review Options
During your consultation, we’ll discuss your layout and equipment choices. We’ll give you a quote and explain how incentives reduce your net cost.
Finally, we’ll talk about financing options — including some with zero out-of-pocket expense.
Installation
After you decide to move forward, we’ll take detailed measurements at your home, produce engineering drawings, secure incentives and permits, and order equipment.
Expect installation to be about three months after you sign up. Installation itself usually takes one or two days.
Get a Solar Quote
Receive a custom quote for your home. Schedule an online consultation at a time that is convenient for you.
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