Updating the electrical in a house
Rewiring a house will require a permit from your local building department.
Do not attempt to replace your own wiring unless you are experienced in electrical construction.Although it requires a fair amount of skill, new holes can be drilled from inside the room with a flexible drill bit.Alternately, accessing the crawlspace or attic and drilling through the wood plate is necessary. Drill a 1/8-inch hole first to make sure you aren't about to drill a hole through your floor or into a stud.If your house is newly purchased, before you paint or move in, plan on cutting numerous holes in the walls to make running the new cable easier.If your house is lived-in, or you don't want to cause a major disturbance, the task will take much longer and your options will be limited.
You may have to leave the wiring in the walls intact and only replace the cable in the attic or crawlspace.