I started working with Diablo Solar Services maybe 30 years ago when they put in a solar pool system for us. More recently I was looking around for a photovoltaic solar system for my house and I wanted to work with a company that had been around for a while and was still here. That was very important to me because I knew the panels would be on my house for 25 years or so. I had faith in Diablo because they were always very good to me in the past. The service is great. They really stand behind their products. Whenever I call the service manager he always answers right away and keeps me informed about progress. I had some problems with my panels initially. I wanted to go with an American panel, so they convinced me to go with a certain company that backs up their panels with a 25 year warranty. I really appreciated that. Diablo is a very reputable company and pleasant to work with.