Rewiring a home can seem like a daunting task, but with proper planning and precautions, it is possible for a dedicated DIYer to take on. Rewiring without professional help can lead to huge cost savings, as electrician fees often run in the thousands of dollars. However, safety should be the number one priority - working with electrical wiring presents real hazards if proper protocols are not followed.

This guide will walk through the complete process of rewiring a home, from assessing the existing electrical system, planning the rewire, purchasing materials, installing new wiring and components, and finally testing the new system. Critical safety advice is provided for each step. While expertise is required, this shows it is possible to gain the skills needed to rewire your home through research and careful practice. With patience and attention to detail, you can take control of this major home project and avoid paying electrician markup.

Assessing the Existing Electrical System

Before beginning a rewiring project, you must understand the current state of your home's electrical system. This involves both safety considerations and planning how the new wiring will integrate. Key steps include:

Document the Circuit Breaker Panel

Check Condition of Existing Wiring

Identify Hidden Wiring Runs

Consider Adding Capacity

Developing a Rewiring Plan

Careful planning is crucial when taking on a major electrical project. Consider the following when developing a rewiring plan:

Choose a New Service Panel

Decide on Wiring Approach

Develop a Circuit Map

Consider Installation Order

Purchasing Materials

With a rewiring plan completed, now purchase the necessary materials and tools:

Electrical Wire

Outlet Boxes and Conduit

Circuit Breakers

Miscellaneous Materials

Installing New Wiring and Components

With planning and purchasing accomplished, now the hands-on work begins. Take it one step at a time:

Mount the New Service Panel

Run Box-to-Box Circuits

Connect Switches and Receptacles

Label all Circuits

Testing and Validation

With the new wires run and connected, it is time to validate proper function and safety:

Torque all Connections

Verify Proper Grounding

Perform Insulation Testing

Power-Up and Test


Rewiring an entire home is a complex project that requires planning, electrical skills, and extreme care. While hiring a professional electrician may be the best option, some homeowners may choose to take on this challenge themselves and reap significant cost savings. This overview provides the key steps involved, with tips to maximize safety and success. Pay careful attention to local building codes and permit requirements as well. With diligence and common sense, rewiring a home without an electrician can be accomplished.