How to Safely Rewire Your Home Electrical System Yourself

How to Safely Rewire Your Home Electrical System Yourself


Rewiring your home's electrical system can seem like a daunting task, but with proper planning, safety precautions, and attention to detail, it is possible for a diligent DIYer to successfully complete this project. In this guide, I will walk through all the key steps involved in safely rewiring your home electrical system on your own.

Reasons for Rewiring

There are several common reasons you may need to rewire your home's electrical system:

Dangers of DIY Electrical Work

Before deciding to rewire your home yourself, consider the following risks:

If you have doubts about safely completing the rewiring on your own, hire a licensed electrician.

Working with an Electrician

While a major rewiring project can be DIYed, there are benefits to hiring an electrician:

Professional help is recommended for complex or very large rewiring projects. Get quotes from 3-5 licensed electricians before deciding who to hire.

Preparing for a DIY Rewiring Project

If you plan to rewire your home yourself, be prepared with:

Safety Equipment


Permits and Inspections

Step-by-Step Guide to Rewiring

With proper planning and safety precautions, you can rewire your home successfully:

1. Turn Off Power

The first step is to shut off power at the main breaker. Use a non-contact voltage tester on wires before touching to be sure power is off. Post warning signs so no one accidentally turns power back on.

2. Remove Old Wiring

Carefully remove existing wiring. Label each wire's circuit location as you disconnect it. Remove insulation debris with a vacuum.

3. Plan New Circuit Layout

Determine new wire size needs and circuit layouts. Add circuits as needed. Include capacity for any future additions you may want, like a hot tub.

4. Fish New Wires

Run new cables through walls and ceilings between the main panel and outlets/fixtures. Use fish tape to pull cables through framed walls and cavities.

5. Connect Wires

Referring to your circuit map, connect new wires to the main panel, outlets, switches, and fixtures. Use the right cable crimpers for secure connections.

6. Update the Service Panel

If also upgrading your electrical service, install the new, larger main service panel now. Run wire from the utility connection to the main breaker.

7. Insulate and Patch

Properly insulation any holes or gaps made for wiring. Patch drywall, install outlet covers, and repair any surfaces.

8. Inspect and Power Up

Have an electrician inspect ALL wiring. Only after passing inspection should you turn power back on. Check outlets and lights.

9. Add Finishing Touches

With everything functioning properly, complete the renovation by adding flooring, trim, painting, and other finished surfaces. Enjoy your new wiring!

Final Considerations

Rewiring your electrical system is a major project, but pays dividends in safety, efficiency, and even home value. To summarize:

With good planning and attention to detail, you can successfully rewire your home electrical system, gaining peace of mind knowing everything is safe, modern, and reliable for years to come.