Rewiring a home can seem like an intimidating task, but with the right preparation and safety precautions, it is possible for a homeowner to rewire their house without hiring an electrician. There are several reasons why you may want to rewire your home, from upgrading the electrical system to fixing faulty wiring. Rewiring does involve working with dangerous electrical components, so safety should be your top priority. Follow this guide to learn how to safely rewire your home room by room.

When Rewiring is Necessary

Here are some of the most common reasons you may need to rewire your home:

Safety Precautions

Working with electrical wiring can be extremely dangerous if safety rules are not followed. Here are some key safety steps to take:

Rewiring a Room

Follow this basic process to safely rewire a room in your home:

1. Turn Off Power and Remove Old Wiring

The first step is to turn off all power to the room you are rewiring at the main circuit breaker panel. Test outlets with a voltage tester to be sure. Then, remove all outlet and switch cover plates and unscrew the outlets and switches from their boxes. Carefully pull the old wiring out of the boxes and dispose of it.

2. Plan New Circuits and Outlets

Decide where you want new outlets and switches placed. Having a good plan will make installation easier. Mark the locations with tape. Also plan which outlets you want on each new circuit. Draw up a basic circuit plan to follow.

3. Install New Outlet Boxes

With the power still off, install new electrical boxes for outlets, switches and fixtures. Nail the boxes into wall studs for stability. Make sure you buy the correct size. Follow box instructions carefully.

4. Run and Secure New Wiring

Starting from the main panel, run the new 12 or 14 gauge NM wiring through the walls to each box. Secure wiring every 4.5 feet with nail brackets. Use wire nuts to make connections. Keep wire colors consistent for hot, neutral and ground.

5. Connect Switches and Outlets

Connect the wires to the outlets, switches and fixtures. Follow diagrams on the devices. Make sure wiring is snug and does not touch metal boxes. Place wire nuts over connections. Make ground connections as well.

6. Attach Cover Plates and Restore Power

With all wiring done, screw the outlets, switches and fixtures into their boxes. Attach cover plates. Go to the main panel and restore power to the room. Test your handy work!

Whole House Rewiring Tips

If you plan to rewire your entire house, work room by room. Follow this room by room process:

Some other tips for whole house rewiring:


While rewiring a home is labor intensive, the electrical savings and safety benefits make it a worthwhile DIY project. Just be sure to take precautions like turning off power, wearing gloves and having GFCIs in place. Follow the detailed room and whole house rewiring steps covered above and you can take on a rewiring project yourself without an electrician. Pay close attention to building codes and device instructions for a compliant and well-functioning electrical system. With adequate care and planning, you can safely rewire your home!