When I arrived, the house only had partial power. After troubleshooting, I found there to be a faulty electrical breaker in the outside disconnect. I also found all connections in meter and disconnect were showing signs of corrosion due to water getting inside of all outdoor electrical service equipment. I was able to restore power to home after removing 100 Amp disconnect breaker, cleaning the blade connections in disconnect, and relocating breaker to a different buss bar. Informed customer this is a temporary solution. Due to the amount of corrosion, the issue could return unless a permanent solution is done. Customer agreed to temporarily fix the issue today, with plans to replace all outdoor electrical service equipment in the near future in order to permanently fix the issue. I will be creating an estimate for this work.