Certasun

Verified profile
Updated: 04 December 2023
Installer

Installing solar since 2018

Certasun logo
Pre-Screened Solar Pro

Since 2020

4.76 from 166 Reviews

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SolarReviews Expert Rating Score:

A score we give a solar company out of 100 based on 13 criteria that our SolarReviews industry experts believe are the best criteria to separate good and bad solar companies.

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Rating breakdown

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Certasun reviews


Breakdown of consumer reviews

Sales Process

4.9

Price as quoted

4.9

On schedule

4.8

Installation quality

4.9

After sales support

4.7

Latest good review thumbs up

Vern | Harvard, Illinois | 12/09/2023

I was very happy with Certasun and their work in designing and installing my solar power system. Questions I had were answered very quickly. It took less than a day for the installation and then less than 2 weeks to have the system inspected and approved and then have the power company comvert my account to net metering. Certasun handled all of the permitting process and all interactions with the power company and it all went smoothly. Overall it was a very good experience with Certasun.

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Latest bad review thumbs down

Fed Up | Lake Forest, Illinois | 10/23/2023

From excellent to barely mediocre

I had CertaSun install solar panels a couple of years ago and had the best experience, above anything I could have expected. The sales portion answered all my questions, and I had considerable questions from my research leading up to my contact with them. I couldn't have expected a better experience. However, now, about a year ago, I wanted to add a SunVault battery for storage. My sales contact was slow to respond, didn't seem to want to answer any of my questions and I had to continuously keep after him to get to where I am today. I ended up going to the original sales rep, who was promoted, to get any kind of answers. I was so deep into it by then, I struggled with it, but decided from my first experience to proceed. Now, SunVault installed and operational for a little over 2 months and there's a problem with it. It's been 2 weeks since I was told I'd have answers for availability of the defective/non functioning part and still no response from the 2 emails I've sent. No one seems to know if or when the replacement part will be available to bring my storage to where it should be. IDK what happened, but CertaSun went from a company I would recommend to everyone, to a company I'm fed up with and hate the thought of having to deal with them again for anything. No communication from the team onsite, little or no communication from my "success manager", so here we are. I work far enough away and have to make arrangements for them to access the equipment, but cannot do that when I have no information or timelines.

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1 comment >
Reply from Certasun: Thank you for the feedback. Our goal is to provide the best service in the industry and we clearly did not live up to that standard here. Our technician did not resolve the issue with your system during his first site visit, but our partner, SunPower, was able to resolve it remotely the next day. Your system has been working as expected since then. While our technician was onsite, he did find some anomalous readings on one component. Although not impacting the performance of your system now, after consulting with SunPower we would like to proactively swap out the part under warranty. The part is on order. When it arrives we will make the replacement at your convenience. We apologize sincerely for not being as responsive or communicative as we should have been. We have already made some changes internally we hope will allow us to do better in the future.

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Nik T | West Chicago, Illinois | 12/04/2023

Excellent company and people to work with. I was kept upto date throughout the project. Highly recommended.

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Todd | Buffalo Grove, Illinois | 11/17/2023

Amazing company

Everyone involved from the first person we spoke to, the project manager and the installers were friendly, knowledgeable, explained the process each step of the way, helped us understand some problems and gave us options for fixing some issues . . . I would recommend Certusun to any friends and family.

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KoolAde | Lake Villa, Illinois | 11/16/2023

Solar Power operational per plan

Sales contract was very clear and understandable. I didn't need a lawyar to understand it. Timeline for solar energy was close to that predicted, about 10 weeks. Solar installation is working fine since it was turned on about a month ago.

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Kamlesh | Elk Grove Village, Illinois | 10/30/2023

Owner

Jon kroft my sales person was very helpful from beginning to the end of installation process. He was present T time of the installation to make sure everything is going good. Good team work. Happy with the company and staff.

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Steve N. | Bolingbrook, Illinois | 10/10/2023

Excellent Service

I recently had solar panels installation on our home. From the consultation step to the final installation, Certasun was always very prompt, informative and professional. All staff members were knowledgeable and detail in answering any questions that I had. Each step in the long process was listed out in the contract, tracked and communicated along the way. I am very happy with the work the whole team performed to complete this project. The final result is beautifully installed panels without any visible conduit on the roof top. The system so far has performed as expected. I will have no hesitation if I have a chance to refer anyone who wishes to install solar to Certasun. Sincerely thanks to the whole team, you did a great job!!

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1 comment >
Reply from Certasun: Hi Steve, thank you taking the time to leave a review! We are so happy to hear that you were happy with our team's work throughout the process and that you like the look of your installed solar system! We appreciate you choosing Certasun!

Jon | Naperville, Illinois | 10/10/2023

Simple excellent solar

The whole certasun process is simple and straightforward. They designed the system, got all the approvals from city and HOA. Installation was easy, and now the solar system is up and running just as promised. I would do it again without hesitation. The team has been available to answer questions and help explain the timeline and steps along the way

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1 comment >
Reply from Certasun: Hi Jon - thank you for your review and for choosing to go solar with Certasun! It's great to hear that you found the process of going solar easy, and that you're happy with the results!

Roody | Oswego, Illinois | 10/04/2023

Very happy with CertaSun and SunPower

After extensive research and a few sales presentations, we selected CertaSun to install our solar system. Their use of industry leading panels and hardware from SunPower was a factor in our choice. Perhaps more importantly, CertaSun believes that exposed conduit is ugly and I AGREE!! Whenever feasible, conduit should be hidden from view. Much can be run in the attic space eliminating any ON the roof. In my home, I have a hollow chase creating an architectural boxout in the dining room which aligned with my electric meter. I was able to run a conduit from the attic to basement within that chase, this eliminated the visible exposure of the vertical conduit from solar panels to exterior mounted meter box. CertaSun poked a pipe from this basement junction box directly outside to their equipment mounted next to the electric meter. While I installed this hidden conduit for their use, I am sure that Certasun could install pipe hidden in this manner (given a similar situation in your house) and it would rightfully be an added charge, but IMO well worth the ask. The sales and installation process was great. There were some slight delays in some communication. However, it was not TOO delayed and I chalked it up to a busy office in a busy industry in the busy season. And frankly, I want my chosen vendors to be busy. Overall, I was VERY happy with our choice of CertaSun and I suspect you will be as well!

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1 comment >
Reply from Certasun: Hi Roody, thank you so much for your review and sharing your experience with others! We are so glad to hear that you are happy with the final look of your system! As you mentioned, we know aesthetics are important to many homeowners and we strive to make our installations - including conduit - look as good as possible on each home we work on. Thank you for choosing Certasun!

Sharif Riaz | Morton Grove, Illinois | 10/01/2023

Excellent service

Excellent serivice with timely installtion with cheaper rate than other solar energy providers.

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1 comment >
Reply from Certasun: Hi Sharif - thanks very much for your review, we're so glad to hear that you were happy with our team's service as well as your installation timeline! We appreciate you choosing Certasun!

Chris | Woodridge, Illinois | 09/25/2023

Outstanding Service and Product

Certasun was truly outstanding! From the salesperson to the project manager to the installation team, everyone was professional and responded immediately. We received weekly email updates on our project so we always had updates. I will recommend that company to my closest friends and my family because I was that impressed.

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1 comment >
Reply from Certasun: Hi Chris, thank you so much for choosing Certasun and for your review! We are so glad to hear you were impressed by your experience with our team!

William Iwans | Sycamore, Illinois | 09/02/2023

I recently had the pleasure of working with Certasun for the installation of my residential solar power system, and I couldn't be more thrilled with the experience. From the very beginning, their team displayed exceptional knowledge and professionalism. The communication, starting from the sales team and extending to the project manager, site assessment experts, installation crew, and final approval process, was outstanding. What truly impressed me was the efficiency of their installation crew, who completed the entire project in just one day. Their attention to detail was evident throughout the process, ensuring that every aspect of my solar system was meticulously handled. Certasun took care of everything, from city permitting to inspections, and even the setup of my net-metering account with my utility company, which was approved remarkably quickly. Despite some initial scheduling challenges due to my work commitments, once the site assessment was complete, the project proceeded seamlessly and was even completed ahead of schedule. The fact that I purchased my system directly from Certasun made the entire process incredibly hassle-free. All I had to do was sign a purchase contract, be present for a few key appointments (site assessment, installation, and final inspection), and pay as the project progressed. I can't recommend Certasun enough if you're considering solar power for your home. Their honesty, efficiency, and comprehensive service make them an exceptional choice in the solar industry. Thanks to Certasun, I now have a reliable and environmentally friendly source of energy for my home, and I couldn't be happier with the results.

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1 comment >
Reply from Certasun: Hi William, thank you so much for choosing Certasun and for taking the time to leave a detailed review - it is so helpful for others who are considering solar to hear from customers that have been through the process. It is so great to hear that you found our team knowledgeable and helpful from start to finish! Thank you again!

Solar panel cost calculator

Service types


Residential solar - Grid tied

Residential solar - Hybrid solar systems

Energy monitoring

SunPower SunVault

About Certasun


We will never subcontract your installation to a third party. Our own well-trained, licensed electricians and installers will install your system carefully and in compliance with all safety codes and regulations.

Certasun uses SunPower equipment, the highest-quality, highest-efficiency, best-warrantied, best-looking products in the industry. SunPower equipment comes with a 25-year Complete Confidence warranty that covers both equipment and labor in the unlikely event of any problem.

Office locations


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Illinois - Buffalo Grove

1582 Barclay Boulevard, Buffalo Grove IL, 60089

Illinois - Buffalo Grove

1582 Barclay Blvd, Buffalo Grove IL, 60089

Certifications


Better Business Bureau UL Certification

Contact Certasun


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Head Office
1582 Barclay Boulevard, Buffalo Grove IL, 60089
Website
Website
Certasun