Rewiring a home can seem like a daunting task, but with proper planning and safety precautions, I was able to rewire my entire house and save thousands of dollars in the process. In this comprehensive guide, I will walk you through everything I learned about residential rewiring, from acquiring the necessary permits to selecting the right wire and cables.

Reasons to Rewire Your Home

There are several good reasons to rewire a home, including:

Upgrading to Meet Code

Increasing Safety

Expanding Electrical Capacity

Improving Reliability

Acquiring Permits

Before starting any rewiring project, it is crucial to obtain the proper permits from your local building department.

Planning the New Wiring

Careful planning is essential for a smooth rewiring project.

Evaluating Electrical Load

Choosing Wire Size

Mapping Circuits

Removing Old Wiring

With the permits and plan ready, it was time to start replacing the old wiring.

Turning Off Power

Removing Knob and Tube Wiring

Taking Out Old Breakers

Running New Wires

The real work began when it was time to run the new wires through the house.

Securing Cables

Fishing Wire Through Walls

Leaving Extra Length

Installing New Breaker Panel

The new electrical service panel is the backbone of an updated electrical system.

Selecting a Panel

Mounting the Panel

Running Ground Wires

Making Connections

The most technical step was correctly connecting all the new wires to outlets, switches and breakers.

Outlets and Switches



Wrapping Up the Project

Once all electrical connections were made, there were a few finishing touches to complete.

Testing Circuits

Closing Walls

Final Inspection


While rewiring a house is very labor intensive, it can certainly be tackled by a knowledgeable DIYer. Paying an electrician easily could have cost me $8,000-$12,000 for the scope of work I took on. But by educating myself, getting the proper permits, planning carefully, and working safely, I was able to update my home's electrical system and save a tremendous amount of money. If you take the necessary precautions, you can rewire your outdated home and bring it up to modern safety standards. Just be sure to call in a professional if any part of the process does not seem totally clear or manageable.