Get to know these tricks before you tackle electrical projects at home. If you like to do your own handiwork around the house ...

Before you do anything, switch off the breaker on your main electrical panel. Target just the breakers that handle power for the light fixtures and switches you plan to service.

Trenching, or burying the electrical wire that comes from the electrical panel, can cost $600 to $2,100. If the drywall is damaged during wiring installation, it can cost $1.50 to $3 per square ...