My house had old wiring which I worried about for a long time. I knew the cost would be high, but really I put it off for years because of the uncertainty regarding the associated holes and damage needed. The owner Rob explained everything well and made some great suggestions too. We had 4 electricians at our house for 4 days. All of them were careful and pleasant to deal with. We had less damage than expected and the holes were well patched. I should have done this years ago.