Solar Companies in Carol Stream
Compare all 2 solar installation companies serving Carol Stream, Illinois.
Solar Companies Serving Carol Stream
Certasun
Buffalo Grove, IL
320 reviews
Certasun is the highest-volume residential solar installer in Illinois, verified through Illinois Shines project application data. Headquartered in Buffalo Grove, they serve the entire Chicago metro and northern Illinois. Every aspect of the project — sales, design, permitting, installation, and incentive processing — is handled in-house with no subcontractors. They guarantee system production over its lifetime and process all Illinois Shines SREC payments and ComEd DG rebates on behalf of customers. Certasun also offers Prio, a prepaid solar service product designed for ComEd customers navigating post-ITC economics.
RxSun
Chicago, IL
185 reviews
RxSun is a Chicago-founded, locally owned residential solar company consistently ranked among the top five Illinois installers on EnergySage. Known for competitive pricing, premium REC+Enphase systems, and an industry-leading 30-year SolarInsure™ warranty covering parts, labor, and roof penetrations with zero deductible. All installations are performed in-house by NABCEP-certified installers. RxSun handles full SREC and ComEd rebate processing on behalf of customers.
Disclaimer: Company rankings are based on publicly available data including customer reviews, BBB ratings, years in business, and service offerings as of February 2, 2026. Featured companies may include paid placements.
Local Solar Information for Carol Stream
Why Choose a Local Installer?
- Local Expertise: Familiar with Carol Stream permitting and regulations
- Faster Response: Nearby teams can respond quickly to service needs
- Community Reputation: Local companies rely on word-of-mouth referrals
- Site Visits: Easier to schedule in-person consultations and assessments
- Local References: Can provide references from neighbors in Carol Stream
Questions to Ask Local Installers
- How many installations have you completed in Carol Stream?
- Can you provide references from customers in my neighborhood?
- What's your typical response time for service calls in Carol Stream?
- Are you familiar with local permitting requirements?
- Do you have experience with my utility company?
- What's the typical timeline from contract to installation in this area?
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