Only one of the 3 businesses that quoted made a genuine effort. One threw out an inflated quote that did not meet the requirements I set. Another only sent a quote after I emailed them a week after first contact, again not matching the inverter type requested. The third did all the things you would expect from a good operator, quotes met the 2 inverter types I wanted to be quoted, made follow-up calls and answered questions. Don't go into this process believing the information in the "How Much do Solar Panels Cost" on the solarquotes website. There is nothing complicated about my install and is in fact easier than most because the prospective installer has access to house during building, yet even quotes using budget panels and inverter where above range listed on that page.