Cosmo Solaris Reviews

I have had a terrible experience with Cosmo Solaris. I signed my contract with them in July 2025. As of today's date, of Dec 11 2025, I still do not have a solar system that is fully functional. The installers showed up and installed system but did not have a critical component that left the system only able to charge the battery. It seems the site meter was not configured. Without a site meter, system will not operate fully. I am highly disappointed. It took Cosmo Solar over 3 months to get the permitting approved and another 2 months to get materials and install date on the calendar. Throughout the process Cosmo Solaris customer's service has been horrible. I could not get anybody to answer or return phone calls or text for my project status. So here I sit with a system not functioning properly and Cosmo Solaris will not provide me any updates as to when they will come back to install missing components, final inspection or commissioning of the system. It has been a terrible customer service experience. I see no end in sight.

We are extremely satisfied with our solar installation from Cosmo Solaris. From the very beginning, their team provided great guidance and helped us choose the perfect solar system for our home. The installation process was smooth and their accuracy was impressive. We highly recommend them!