Award Winning Services
How Full Spectrum Solar Became One of Wisconsin's Best
Madison Magazine's "Best Solar Contractor"
Full Spectrum Solar is a family owned and operated business that has been proudly serving Wisconsin for 20-years. Founded by brothers and UW-Madison Mechanical Engineering alumni, Burke and Mark have always strived to create a company culture that believes that the ethics of good business practice and contributing to the wellness of nature come first. We pride ourselves for how little we focus on marketing and instead believing that through great work and trust, our customers become our greatest supporters as a local small business.
We are a small business with an environmental mission which supports our emphasis on communication, service, and community connections.
Why Choose Full Spectrum Solar?
- 20+ Years of Solar Experience
- Direct Pricing with No Sales Pressure
- Industry Leading Warranty Coverage
- Smart Phone System Monitoring
- North American Products
- Certified Master Electricians
- Accredited Project Managers Dedicated to Each Project
- Post-Installation Service Department
Some Feedback
What Our Clients Say
Happy Clients
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EXCELLENT Based on 124 reviews Posted on Cynthia Pillar They made the entire process quick and easy. We were informed of scheduling with timely updates and once the installation started, it went quickly without any interruptions. The team was onsite from start to finish and our sales rep immediately scheduled time with us at completion and explained the entire system. We couldn't be happier with how this project went and the company itself. Highly recommend!Posted on Sean McLaughlin Full Spectrum Solar installed a 7kw for our home in Waunakee. Everything went great. Very good communication and fair pricing compared to the "door to door" competition.Posted on Will Hopwood Easy as pie and ice cream. My new ~6Kw home system is sweet and savory!Posted on kindley graf Full Spectrum Solar rewarded me with excellence.. Selecting Full Spectrum will result in a skilled project manager, such as Ron, who will do a fantastic job designing and installing your system. These guys are professional engineers who are skilled, not just jobbers with no specialized background. Always go for expertise!Posted on Sarah Johnsen Easy to work with. Very knowledgeable. We are very happy with the outcome.Posted on Robert Pultz Full Spectrum Solar delivered as promised. The solar ground array looks awesome and is producing even better than expected. The FSS staff was efficient and respectful of our property while they were onsite. Todd and Tyler were easy to talk with and answered all my questions. The project encountered some obstacles and they found solutions. Ron, Project Manager, is the best and guided me through the process. The company is owned by UW grads and that meant something to me. There were no additional charges and the site was left in good shape. If there were a rating higher than a 5 stars, I would give it to this company. Highly, highly recommend Full Spectrum. Happy to be off the grid.Posted on Ralph Nyquist Full Spectrum was a joy to work with! They helped me achieve a longtime goal of solar on my home. The planning, installation and support during and afterwards made it easy for me. They were respectful of my plantings, deck and gutters and cleaned up after they were done. I am reccomending Full Spectrum Solar to my friends! Ralph, MadisonPosted on Melissa Lucarelli A++ communication and professionalism from Full Spectrum Solar and Ron Chester (Program Manager)! When we rebuilt our shed in rural Beaver Dam township, we designed it for solar panels which will generate about 80% of our total home electric needs (including charging our electric vehicle). Compared to working with the building contractors, Full Spectrum Solar was amazing— they were on time, on budget and they cleaned up the work site. Ron answered all of our questions, even the technical ones (we had a lot of them). He handled township permits and all of the Alliant Energy utility paperwork. He even submitted the Focus on Energy rebate for us, and we received that check in the mail before our final installation invoice was due. We are 100% satisfied and highly recommend Full Spectrum Solar.Posted on Ann Fons We are very happy with our solar panels from Full Spectrum Solar! Every one of the crew was pleasant, polite and efficient, from the project manager to the roof guys, to the engineers and installers. It’s great to feel like we’re doing a small bit to use greener energy! Thank you to all the crew!Posted on Steve Zimmerman Full Spectrum Solar with Ron Chester did a great job for us installing rooftop solar. The job was well done and the information imparted was accurate thus far. I would recommend.
See Our Work
Portfolio
We Can Help You
Estimate Your Savings
$90/Mo Electric Savings
10-14 Panels
$
16,000
Estimated Lifetime Savings
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Up to $4,900 in State Grants
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10-16 Year ROI
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25 Year Warranty
Example
$180/Mo Electric Savings
22-26 Panels
$
38,000
Estimated Lifetime Savings
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Up to $4,900 in State Grants
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10-15 Year ROI
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25 Year Warranty
Example
Articles
January 15, 2026
How Many Solar Panels Do You Need to Offset an Electric Vehicle?
Charging an electric vehicle (EV)
December 5, 2025
November 21, 2025
November 7, 2025








