I asked for 2 quotes and although both replied to my initial enquiry and said they would quote, only one company ended up doing so which was a little disappointing. The company I ended up getting a quote from was highly professional and I commend them, but at the end of the day I couldn't justify their extra $900. Comparision other $4781 versus $5692 for the same thing. If their price had been a bit closer I likely would have gone with them as they offered great service. And yes, there was a huge mix of quotes, but the $4781 I've mentioned above is for panels of similar quality and & the exact same inverter. I did get much cheaper quotes (as low as $2998), but they were, what I would consider to be, inferior products, with reviews leaving me questioning the quality of installation.