If you need to relocate your breaker box for home improvements or other reasons, you will need to hire an electrician to do the work. You may also need to get a permit in advance. The box is connected to the wiring to various circuits in the home, in addition to the main service wire. In order to move it, your electrician has to assess the condition of the wiring and make a plan to upgrade or extend it. The cost and complication depend on the distance and other factors.