Compare the highest-rated home solar professionals in Washington, Illinois. All contractors are licensed, insured, and verified through our rigorous screening process.
A nationally recognized, full-service solar installer with a strong local presence in Illinois. They are known for a comprehensive, in-house process that handles everything from initial design and permitting to installation and maintenance, ensuring a seamless customer experience.
A leading Illinois-based, employee-owned company specializing in solar and battery storage. They are highly regarded for their expertise in local incentive programs and their commitment to the community. They serve the Washington area from their Peoria location.
A highly-rated local contractor based in Morton that specializes in both electrical and solar services. Their dual expertise ensures high-quality electrical integration for solar and battery systems, and they are known for personalized customer service.
The home solar market in Washington, Illinois, is active and growing, fueled by state-level incentives like solar renewable energy credits (SRECs) and net metering, alongside the declining cost of solar technology. The market quality is generally high, with several reputable, certified installers serving the area from Washington itself and the broader Peoria metro region. Competition is moderate but robust, with companies competing on service quality, local expertise, and knowledge of financing options rather than just price. Typical pricing for a residential system in this region is competitive with the national average, generally ranging from **$15,000 to $30,000** for a standard 6kW to 10kW system before the 30% federal tax credit and other applicable state incentives. Homeowners are increasingly interested in pairing solar with battery storage for energy resilience.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Washington regulations and climate
Get answers to common questions about home solar services in Washington, Illinois.
For a typical 6kW system in Washington, the gross cost before incentives is usually between $18,000 and $25,000. Crucially, Illinois homeowners benefit from the state's Solar Renewable Energy Credit (SREC) program through the Illinois Shines program, which provides a significant upfront incentive. Combined with the 30% federal tax credit, this can reduce the net cost by 50% or more, making solar very affordable.
Modern solar panels are tested to withstand Washington's hail and heavy snow loads. While winter production is lower due to shorter days and potential snow cover, panels are installed at an angle to help snow slide off, and they still generate power on cold, clear days. Our four-season climate actually provides excellent spring and summer sun, and annual production is more than sufficient to offset year-round energy use.
The full process typically takes 2 to 4 months. After system design and signing, your provider handles permits with the City of Washington, submits interconnection paperwork to Ameren Illinois, and schedules installation, which takes 1-3 days. The final step is inspection by the city and approval from Ameren to "go live." A reputable local installer will manage this entire timeline for you.
Prioritize installers who are licensed, insured, and have proven experience with Washington's specific building codes and Ameren Illinois interconnection process. Look for established local or regional companies with strong references in Tazewell County. They should provide a detailed production estimate specific to your roof's orientation and Washington's weather patterns, and offer robust warranties.
Illinois state law mandates net metering for Ameren customers. Your system sends excess power to the grid, spinning your meter backward and earning you a credit on your bill. Importantly, a standard grid-tied system will shut off during a power outage for safety. To have backup power, you must install a dedicated solar battery system, which is an increasingly popular add-on for Washington homeowners.