Did my home sustain lightning damage due to inadequate grounding rod installation?
Even with a good solid ground a strike on the grid can damage equipment to the point of blowing the breaker panel to pieces with a hit that is close to the house. For indirect hits a whole house surge suppressor (the largest you can afford) may reduce or eliminate damage to home equipment. I state to use the largest you can afford as when these devices take a hit over their ratings they are damaged, sometimes wiping out the varistors in the device so it has to be repaired or replaced (larger units usually have replacement modules for each leg or phase depending on the service type).