Solar Union did a good job on the overall new solar project on our house in San Francisco. I would definitely recommend. The panels have been operating flawlessly for almost a year now. They were a bit more expensive than other quotes but they are a large enough company with different businesses and I expect will be around to fulfill their 25 year warranty. They also recommended a roofer who was able to meet the timeline and provided a very competitive quote.

It took a few times back and forth of reviewing the plans and providing feedback because the engineers doing the layout couldn't initially figure out how to fit the panels in the planned space from the original quote. I ended up going up on the roof to collect more exact measurements, looking up the code myself to explain how what we originally planned will still meet code requirements, and providing a sketch. Additionally the drawing had a couple errors with the electrical panel and inverter at the wrong end of the house and incorrect, undersized inverter model. I would rather they had been able to get this right without my help but getting all the details right is really tricky and I would expect this of every solar installer.

After this was all squared away I didn't hear anything for a few weeks, which was expected since construction start was planned quite a few weeks away, then got an update, and nothing for 4 more weeks until a call saying they will arrive the next day to do the install! A little more advance notice would have been nice, but the date and time worked fine.

Installation went great, completed in about 2 days. The installers were really knowledgable. They followed the plan, called in to discuss changes that were missed in order to meet code and tweaked accordingly. I worked in residential construction for many years and I checked their work on wiring and waterproofing and it was all high quality work. The inspection was smooth - only concern was they used flex conduit in the basement for a long run instead of rigid, but the inspector let it pass.

From first phone call to getting PG&E permission to operate and enabling the inverter was a bit more than 6 months which was quite a bit longer than the 3-4 months quoted, but still reasonable.