Full Spectrum Solar
Family-owned Wisconsin solar installer with 20+ years of experience serving Milwaukee, Madison, and Waukesha
22+
Years in Business
2,000+
Projects Completed
55
Customer Reviews
93 mi
Service Area
11-50
Employees
SurgePV Score
About Full Spectrum Solar
Full Spectrum Solar is a family-owned and operated solar installation company founded in 2004, making it one of the longest-running solar providers in Wisconsin. The company is headquartered in Madison and serves the entire southern half of the state, including Milwaukee, Waukesha, Racine, Kenosha, and Janesville. Full Spectrum Solar installs complete solar electric systems for both residential and commercial customers.
The company handles all aspects of a solar project from initial consultation and system design through permitting, installation, and system commissioning. Full Spectrum Solar was selected alongside Arch Solar as a preferred installer for the Grow Solar Milwaukee-Waukesha community buying program, organized by the Midwest Renewable Energy Association and the City of Milwaukee. This competitive selection process validates the company’s pricing and installation quality.
With approximately 2,000 completed installations over two decades, Full Spectrum Solar brings deep knowledge of Wisconsin’s solar incentives, utility interconnection requirements, and climate-specific design considerations. The company maintains positive ratings across Yelp, EnergySage, and Google, and serves Milwaukee-area homeowners from their Madison headquarters. Their service territory covers approximately 100% of the state of Wisconsin.
Service Area
Full Spectrum Solar serves the following areas within a 93-mile radius:
Contact Information
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Services Offered
Certifications & Accreditations
Partner Manufacturers
Warranty Coverage
25 years
25 years
10 years
What to Expect: Solar Installation Process
Initial Consultation
Free site survey and system design
Quote & Design
Detailed proposal with costs and savings
Installation
Panels, inverter, and wiring (1-3 days)
Inspection
City inspection and utility interconnection approval
Go Live
Utility grants PTO, system goes live
Customer Reviews
4.7
55 reviews
Derek S.
Full Spectrum Solar installed a 10 kW system on our home in Waukesha. As a family-owned company with 20 years in the business, their experience was clear. The design was optimized for our roof and our production has exceeded estimates by about 8%.
Maria V.
We went through the Grow Solar program and Full Spectrum was our installer. Competitive pricing, professional installation, and great follow-up. Our system has been running perfectly for four months and we are saving real money on electricity.
John R.
Good company with deep Wisconsin solar experience. The installation was done well and the crew was respectful of our property. The only reason for four stars is that initial scheduling took a few weeks longer than expected due to their busy season.
Frequently Asked Questions About Full Spectrum Solar
What services does Full Spectrum Solar offer?
Full Spectrum Solar offers Solar Installation, Battery Storage, Solar Design, Monitoring, Maintenance, Commercial Solar.
Is Full Spectrum Solar NABCEP certified?
Full Spectrum Solar holds the following certifications: Grow Solar Selected Installer. Contact them directly for the latest accreditation details.
What areas does Full Spectrum Solar serve?
Full Spectrum Solar serves Milwaukee, Madison, Waukesha, Brookfield, Wauwatosa, Racine, Kenosha, Janesville and 2 other areas. They are based in Milwaukee with a service radius of 150 km.
What warranty does Full Spectrum Solar offer?
Full Spectrum Solar offers 25-year panel warranty, 25-year inverter warranty, and 10-year installation/workmanship warranty.
How are Full Spectrum Solar's customer reviews?
Full Spectrum Solar has a 4.7/5 rating based on 55 customer reviews. Customers consistently rate them highly.
How long has Full Spectrum Solar been in business?
Full Spectrum Solar was founded in 2004 and has been in business for 22 years. They are one of the more experienced solar installers in their area.
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