Would a surge protector suffice in this situation? It would suck to use one on every outlet in the home, but you could put one on your most expensive electronics. You also must consider that the power could be traveling through other communication lines into the home like ethernet cables.
An important thing to keep in mind is that the energy from a lightning strike can travel through communication cables that are connected to a cable box, phone, or modem. If these cables are not also properly connected to a surge protector, the overvoltage can travel into the device that it is directly connected to and damage the circuit board.
You can find some pretty reasonable information here. Last resort would be having an electrician come out and inspect everything.
the computers are plugged to them and still, they got fried.
Thank you for the link, Im going to read a bit.
Damn well I hope you can figure out some kind of solution.