What Our Clients Say

Five out of five stars.

A1 definitely knew what they were doing!

It's been almost a year since we had this excellent company add 14 panels on our roof. We are a retired couple with a 2700 sq ft home. For our use according to PGE we needed fewer than 14 panels, but since I felt very confident in this company's integrity and workmanship, I requested additional panels that would serve a larger family when we sold this house. The panels work well as far as I can tell. No issues. The company was very efficient. They definitely knew what they were doing, and installed this beautiful system on my house. I had needed a new roof, so they recommended Lovett and Lovett Roofing to do the job, as it would be well coordinated. And it was! Communication was excellent. They kept me informed, explained the details in non-technical jargon, and displayed a good work ethic.

Devi J. from San Francisco, CA
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Five out of five stars.

The team at A1 Sun were excellent!

From the initial meeting, through design, installation, and connection with PG&E, the team at A1 [Sun] were excellent. The sales team were attentive to our needs, and extremely knowledgeable as to how to accommodate them; the design and installation were very smooth; and the team that spent time at our house were uniformly pleasant, thorough, and competent. Highly recommended.

Sanjay N. from Berkeley, CA
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Five out of five stars.

These guys know what they are doing and they are doing it well!

My roof was leaking and could only be fixed if my solar panels (installed 15 years ago by a company that does no longer exist) would be removed. I called A1 on the recommendation of a friend and man, that was it. Larry Giustino came to my house and gave me an absolutely reasonable bid for removing and re-installing the panels.

These guys were punctual, quick, knowledgeable, clean, and friendly. After my roofer had done his job, they came back to re-installed everything. The system is working beautifully.

It was a small job, but I can tell that these guys know what they are doing and they are doing it well. I highly recommend A1 Sun and should I ever want to extend my system, or do anything else solar, A1 is the company I’ll call again.

Michael E. from Berkeley, CA
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