A Different Kind of Solar Company

BBB A
BBB A

4.9 / 5.0 on Google
200+ reviews

BBB A
BBB A

4.8 / 5.0 on SolarReviews
160+ reviews

BBB A

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.

Certasun solar installation

6

Years in Business

2000+

Solar Projects

What Makes us Different?

A great customer experience

You don’t need to believe us — just look at our reviews! You deserve a solar company that respects your time, intelligence, and home.

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. This is more common than you might think.

Our interests are aligned with yours

We guarantee the energy production of your system over its lifetime. We are also one of the very few solar companies that guarantees you’ll get the incentives you see in your installation agreement.

Your system will look great

We don’t take installation shortcuts to save cost or time. Don’t assume all solar panel installations look the same — they don’t.

You decide how to pay

We will advise you on the available financing options, but won’t push you to use any one of them.

Certasun solar installation

Chris Dorris

“Certasun is absolutely the solar company you want to use…one of those extremely rare companies where you actually feel good working with them and like they have your best interests in mind.”

CHRIS D., GLEN ELLYN, ILLINOIS

Certasun solar panel installation

Mary Onorad

“The solar panels were much better looking and less obvious than I thought they would be. Excellent communication and perfect workmanship are what you want when spending alot of money for a product so important as solar panels. Certasun passed with flying colors.”

MARY O., WESTMONT, ILLINOIS

Matt Gallagher

“The reason I picked Certasun was trust. I am a lawyer and I looked at their contract. It was clean, it was fair, and it was laid out well. Working with Certasun gave me peace of mind.”

MATT G., CHICAGO

Certasun solar panels in Northbrook

William Iwans

“Their knowledge, efficiency, communication, and commitment to excellence are unparalleled. Going solar with Certasun was one of the best decisions I’ve made for my home.”

WILLIAM I., SYCAMORE, ILLINOIS

Daryl D.

“I could tell which ones were done by Certasun and which ones were done by other folks. If you are looking for something that looks like it was built with the house, then definitely go with Certasun.”

DARYL D., NAPERVILLE, ILLINOIS

solar panels in Hawthorn Woods, Illinois

Joy Mason

“Every aspect of working with the Certasun pros was fantastic. And now we have a $14/month electric bill. What a dream! And our panels look great! I’m SO glad we went solar!”

JOY M., NILES, ILLINOIS

Get a Quote

Receive a custom quote for your home. Schedule an online consultation at a time that is convenient for you.

"*" indicates required fields

Name*

Not quite ready? Call (312) 638-0800 with any questions!