Certasun is a top-rated solar company serving the Chicago and Milwaukee areas. Headquartered in Buffalo Grove, Illinois, they provide residential solar, battery storage, and EV charger installation with integrity and professionalism. Customers praise Certasun's exceptional service. They handle all the paperwork and permits, making the process smooth and stress-free. The knowledgeable and friendly team answers questions, addresses concerns, and ensures complete customer satisfaction. The installation crews are professional, efficient, and meticulous, leaving minimal debris. Certasun's proposals are transparent, outlining costs and available incentives. They offer several financing options but let customers decide what works best for them. The company's commitment to quality is evident in the lifetime guarantee on their systems, which customers can monitor conveniently through a user-friendly app. Despite some delays in getting systems online due to high demand, Certasun consistently earns glowing reviews. Customers appreciate the company's expertise, trustworthiness, and dedication to delivering an excellent solar experience. Many are already recommending Certasun to others, solidifying its reputation as a top choice for residential solar solutions in the region.
Best estimate and discussion of options Great installation team, - tidy and very professional We were kept aware of all the stages and progress of planning
October 2025
Very satisfied with the service and work, and the overall process was very smooth.
October 2025
Very good installation process. Both the Electrical and Solar installers were very professional and very informative. There was very little debris that I had to clean up when they were done. Everything was explained and completely very well. My only complaint was that it took 2 months from the install to the inspection.
