Solar Companies in Diamond Bar, CA

SolarMax Technology, Inc.

Established: 2011

EnergySage Rating Value: 4.5 from 45 reviews

The last review from EnergySage:

After waiting years to go solar, researching equipment, shopping around with several different companies, we finally landed on SolarMax. SolarMax was the 10th quote that we’d received for solar equipment installation. The primary reasons for selecting this company was that they were local, the proposed equipment was highly rated, and that they were dependable and honest. After signing the contract, we did have a bit of a lag in getting the design prepared as has been noted with other reviewers, but nothing excessive. We did also have a few bumps along the way in our project with getting permits issued by the City and the approval to proceed issued by the HOA. While not all of the delays were SolarMax’s fault, we did exceed our estimated time frame – Not too bad for life in the age of COVID. I would recommend SolarMax as a company for their value and their ability to get the project completed.


3080 12th St.

Riverside, CA
92507 United States


SolarMax offers a 25 year workmanship warranty on parts & labor.


University of Southern California
University of Riverside


C-46 Solar
C-10 Electrical
C-39 Roofing


CSLB #: 972048