Certasun
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Certasun
Nationally headquartered in Buffalo Grove, Illinois, Certasun is the premier home solar company serving homeowners in Illinois, Wisconsin, and Massachusetts. Why work with Certasun? We exclusively install SunPower Equinox, the most powerful, efficient, attractive, and durable solar equipment available.

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. 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.
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Many IL, MA, and WI homeowners are frustrated with their high energy bills and are tired of paying for nuclear and coal. Qualifying homeowners can go solar with zero up-front cost and pay less every month than they would otherwise pay their utility. Certasun helps homeowners go solar and start saving on their electricity bills.
Wisconsin solar incentives are available through the Focus On Energy program and come in the form of a rebate check after your system is installed. The federal government also offers an incentive for residential solar, in the form of a tax credit. For systems installed in 2021, the credit is 26% of the cost of the system.
Your Certasun solar energy system converts sunlight into electrical energy you can use in your home. 1 Solar panels, which convert sunlight into direct current (DC) electricity (similar to what comes out of batteries). 2 Inverters or microinverters, which convert the DC electricity into the alternating current (AC) electricity used by the grid and distributed in your home.
First, do you own your home? You probably can't install solar if you are a renter because your home is actually your landlord's property. Even if he or she would allow it, installing solar probably still wouldn't be a good idea because you can't easily take the solar system with you when you move. Second, do you consume enough electricity?
When you choose to go solar, you are investing in a product that should last decades. That's why Certasun exclusively installs the SunPower Equinox solar system, which includes the world's best solar panels. SunPower equipment is the most efficient, durable, sustainable, and attractive solar available.
Reviews (16)
Erik Martinez
Erik Martinez
Feb 02, 2022
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After 5 different quotes not only was certasun the most reasonable but came with the best equipment. The entire process was smooth and I was kept in the loop on entire install. Amazingly easy company to deal with
Derek England
Derek England
Jan 05, 2022
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Certasun was great to work with for our solar project. Excellent communication from initial discussion to the end of the process, with knowledgeable representatives who were always able to answer my questions. High quality products and in-house installation with great warranties for a very competitive price relative to other local vendors we got quotes from. Would strongly recommend meeting with this company if you are considering getting residential solar panels.
Dan
Dan
Jan 05, 2022
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Professional and quick. The entire process took a few months, mostly due to dealing with my HOA. All my questions and concerns were addressed by the sales and installation team. CertaSun doesn’t use sub contractors either.
Steve Thompson
Steve Thompson
Nov 26, 2021
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Certasun proved to be a believable and reliable installer and importantly Certasun is certified as an Illinois Shines installer. They are a Sun Power Elite dealer. After a thorough series of conversations with Bill in sales during which he pointed out pitfalls of a contractor I had already selected and my decision to cancel that contract, I appreciated all the more that selection of the "best" of the four solar contractors I was working with was no small task. Thanks to Bill's patience I decided to move forward with Certasun even as we entered a summer of uncertainty regarding Illinois legislative
Spencer Hockeborn
Spencer Hockeborn
Nov 21, 2021
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Certasun made the process of getting solar panels incredibly easy. They did so much of the leg work - and only involved us when they really needed to. The installation took a couple of days, and so far, about a month later, everything has been working great. The consultations were very informative, and they helped us understand the tax credits we would be getting. After install - we got an app that allows us to monitor our electricity usage and solar power generated, which is really cool to see.
Aaron Wielenberg
Aaron Wielenberg
Nov 19, 2021
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Very easy experience from start to finish with CertaSun. The online sales consultation was efficient and answered all of my questions. Subsequent site visits were convenient and timely. Installation took one day and went off without a hitch. Communication from the main office has been consistently clear and timely. My panels were installed a couple of weeks ago with inspection and activation about a week later. Still waiting on full connectivity for net metering, but, you know... ComEd. Obviously I've only had a very short experience with the array itself, but the process of getting it installed
Jared Hintzsche
Jared Hintzsche
Nov 11, 2021
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Purchasing a solar panel system through Certasun was a great experience. Having solar panels installed on your home is far from a quick process, but every person I worked with at Certasun throughout the process was 1st class. From the initial sales consultation all the way through the final inspection Certasun was a pleasure to work with and I would recommend them in a heartbeat to anyone looking to start the solar panel journey.
Andrew B.
Andrew B.
Dec 28, 2020
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I was initially approached by another company who promised me the world with solar. I wanted to go solar, but my village did not allow installations so the whole sale came to a screeching halt. An entire year went by while the process was approved by the village and in that time I was able to do some research and found that the best panels available were actually make by SunPower. The other company could not offer a panel with output and characteristics similar to Certasun's panels. The other company would also not allow me to purchase my own srec, but Certasun assisted me in purchasing
Vince Ottaviano
Vince Ottaviano
Sep 26, 2020
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Certasun is a top notch company that installed my solar panels with out any difficulties. The entire process was seamless from initial consultation to specs and finally installation. The crew went out of their way to ensure that everything was perfect and always included me with any onsite decisions that needed to be made. They consistently checked in with me to monitor my satisfaction and always provided ample time for questions. I would highly recommend Certasun for your solar project needs.
Daniel W.
Daniel W.
Sep 17, 2020
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HORRIBLE HORRIBLE HORRIBLE COMPANY-

I have never in my life talked about another business when competing for business. To say a company is not reputable or "going out of business" so you can get business is ridiculous. Or to say "I guess you don't care about going with the best option". Amateur salesman, Amateur tactics, amateur business. Almost $4600 more than the competition as well which again makes me feel they only care about profit and not about the homeowner. Do not do business here....you will be lied too by amateur wastes of time.
Michael P.
Michael P.
Aug 11, 2020
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*** Warning *** Warning *** Warning ***
Unhappy Customer from Bartlett, IL.
If you care anything about Customer Service, Professionalism,Trust in a Product/Workmanship, Trust in the People Who Sold You the Product and want to feel confident about your investment into solar. Then I strongly urge you to run, run as fast as you can from this company. This company is deceitful, dishonest, and filled with excuses with everything other than their own lack there of.

You can do all the research in the world and still come across a lemon. If it weren't for the SunPower solar system they are licensed
Tom W.
Tom W.
Jul 25, 2020
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My spouse and I have discussed adding solar panels for over 20 years, but have been deterred by the expense and concerns about substandard installations about which we have read. We finally made the decision to go ahead. We choose Certasun and are glad we made that decision.

Certasun's installation crew was top notch and responsive to my requests. Robert B, Rodrigo, and the rest of the crew were terrific. Watching them work and seeing the care they took helped us feel good about our purchase. The system they installed is one of the tidiest, nicest looking ones we have seen. We highly recommend
Andrew Van Til
Andrew Van Til
Jul 01, 2020
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We received several bids from a variety of different solar vendors and decided to go with Certasun because of they offered the best value system that was proposed. Of course it didn't hurt that the sales person was professional, honest, and not pushy/smarmy (which I cannot say the same for some of the other vendors who provided a bid).
I am pleased with the responsiveness of the team, and thrilled with the end result. While I would have loved to have had the system installed a bit sooner (catch those June rays :)), the time from signature to installation was still reasonable.
Ultimately, I'm
Liam P.
Liam P.
Jun 24, 2020
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We had a great experience with Certasun. We chose them over other companies because of the quality of their panels (SunPower) and the effort they took to answer our questions at every step of the process. They took care of all the approvals and permits and the installation only took one day. We now have very attractive panels on our roof that are generating electricity for us throughout the day.
Mark K.
Mark K.
Mar 04, 2020
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Totally satisfied with Certasun. They are aligned with a premier solar equipment provider, SunPower, and all aspects of the sale, installation, and support have been free of surprises and professionally handled. Despite offering some of the more expensive panels on the market, Certasun presented us with a competitive system quote -- including an unbeatable guarantee on our annual energy production. Installation team, including panel installers and electricians, arrived on schedule and completed the job in the time quoted. Our only post-installation service call which involved some missing online
Scott S.
Scott S.
Sep 18, 2018
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Went solar and couldn't be happier that I chose the Certasun team!

I had been looking at going solar for a couple years now but the price had always put me off. Now with the Illinois incentives and the 30% tax credit they were finally in my reach. After looking at other solar companies and seeing all the poor customer service reviews I started looking at what the best solar panels were. I came across Sunpower panels and found them to have the best warranty (25 years) and the lowest rate of decline (only 8% over 25 years). The Sunpower site then linked me to a local installer in my area