Sumintra installed a solar system for a prior owner of a house that I bought. The inverter broke, and the Sumintra team (who I had not met before) was at the house the next day. They spent hours here, realized the inverter was still under warranty, convinced a (skeptical) manufacturer of the case, and within a week I had (1) a new inverter delivered and (2) installed. These guys are pros, and old-school. They get that a happy client is a client for life. Can't recommend highly enough.
When it came to price, I would have paid anything - finding a contractor team that is this responsive is really rare these days. So I braced myself for something expensive and found that it was... completely affordable and worth the price dozens of times over. I feel that I received much more value than I paid for. These are the folks to see.