There is, unfortunately, no easy answer to this question. Often we would say that yes, regular air conditioning maintenance can lower your electricity bills. Keep in mind that your bill will always raise during a California summer. It gets so hot here that you will need to keep you’re A/C cranked, which will raise your bill.
However, regular maintenance keeps your air conditioner in peak working condition. Leaks, compressor issues, and ductwork problems can all make your air conditioner less efficient. That will result in a higher electricity bill.