Chicago and northern Illinois
Professional. Modern.
Local. Solar. Batteries.
Certasun designs, installs, and services home solar, batteries, and EV chargers across Chicago and northern Illinois.
What we do
One team for your whole home
Home solar
Solar panels designed for your roof and installed by our own crews, with a production guarantee.
Home batteries
Whole-home backup from Tesla Powerwall 3 or FranklinWH, with or without solar. ComEd rebates up to $4,500 per battery.
Solar service & support
Already have solar? We diagnose, repair, and remove and reinstall systems, including ones we didn’t install.
EV chargers
We install Tesla and Wallbox Level 2 chargers, either of which will recharge most any vehicle overnight.
Why Certasun
Solar you can actually trust
A great customer experience
We respect your time, your home, and your trust. Our reviews speak for themselves.
Everything done in-house
From consultation to installation to incentive paperwork, Certasun employees handle every step. No subcontractors.
Guaranteed solar performance
We guarantee the energy your system produces over its lifetime, and the incentives written into your agreement.
Clean, professional installs
Not all solar installations look alike. We design systems that look like they were built with the house.
Payment options without pressure
Buy, finance, or choose Prio™, our prepaid solar service. We’ll show you the numbers for each and let you decide.
Prio prepaid solar
A simpler way to go solar, now with batteries
Prio is Certasun’s prepaid solar service. You pay once, up front, and we own, monitor, insure, and maintain the system for the term. Prio for Batteries does the same for a Tesla Powerwall 3.
From our customers
What homeowners say
“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.”
“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.”
“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!”
Individual customers’ experience may differ.
How it works
Going solar in three steps
01
Reserve a free online consultation
Pick a time that works for you. Before we meet, we build a 3D model of your home and estimate how much solar energy it can produce.
02
Review your options
We walk through your layout, equipment, and a quote, and show how incentives reduce your net cost. We’ll cover ways to pay, including some with nothing out of pocket.
03
Installation
We take measurements, produce engineering drawings, secure permits and incentives, and order equipment. Installation is usually about three months after you sign and takes one or two days.
Questions
Your solar questions, answered
Most homes with a south-, east-, or west-facing roof that isn’t heavily shaded work well. We build a 3D model of your home before your consultation, so you’ll see your roof’s real production estimate before anyone asks you to decide anything.
It depends on how much electricity you use and how many panels your roof needs. We quote a fixed price for your home after the consultation, and show how Illinois Shines and the ComEd rebate reduce it. See what affects solar cost.
Yes. Illinois Shines pays for the renewable energy credits your system produces, and ComEd offers rebates for solar, batteries, and EV chargers. We handle the paperwork and guarantee the incentive amounts in your agreement. Illinois solar incentives explained.
Expect installation about three months after you sign up. Permits, utility approval, and equipment take most of that time. The installation itself usually takes one or two days.
See what solar would do for your home
A free consultation shows your design, your price, and your incentives. No obligation, no pressure.
Schedule a free consultation
During the consultation we'll create your custom design and quote.
Not quite ready? Call (312) 638-0800 with any questions.