How to Rewire Your Home Electrical System Without Hiring an Electrician


Rewiring a home can seem like a daunting task, but with proper planning and safety precautions, it is possible for a homeowner to rewire their electrical system without hiring a professional electrician. In this comprehensive guide, I will walk through the complete process of rewiring a home electrical system safely and correctly.

Reasons to Rewire Your Home

There are several reasons you may want to rewire your home electrical system:

Dangers and Risks

Before starting any electrical work yourself, understand the risks involved:

Evaluating Your Electrical System

Before beginning a rewire, you need to thoroughly evaluate your existing electrical system:

Developing a Rewiring Plan

Carefully plan every aspect of the rewiring project in advance:

Choosing the Right Materials

Gather all the materials you will need according to your rewiring plan:

Step-by-Step Rewiring Process

With proper planning and materials, you're ready to rewire. Follow these steps:

1. Turn Off Power

Shut off the main breaker and verify power is off with a voltage tester before touching any wires. Turn off supplemental breakers as well.

2. Remove Old Wiring

Carefully remove existing wiring. Document and label wires before disconnecting anything. Remove abandoned wires back to the source. Warning: Do not remove wires you plan to reuse until new wiring is ready.

3. Install New Service Panel

Mount the new main service panel according to code requirements. Run conduit and wires from the electrical meter to the new service panel. Consult your utility company if moving the service location.

4. Run New Circuits

Follow your wiring plan to run new wires and conduits through walls, attics, and basements from the service panel to all locations that require power. Staple cables every 4-6 feet for stability.

5. Install Switches and Receptacles

Install all light switches, electrical outlets, and other receptacles in the planned locations. Follow codes for proper wiring, grounding, and box fill limits.

6. Connect Devices

Connect hardwired appliances like water heaters, AC units, and fixed lighting to the new circuits. Follow appliance manual instructions.

7. Label Everything

Use printed or handwritten wire labels to note all breakers and wire connections at both ends for clarity. This makes future troubleshooting much easier.

8. Inspect and Test

Visually inspect all work thoroughly. Replace cover plates. Turn on power and methodically test each circuit using receptacle testers and GFCI testing buttons. Fix any problems.

9. Contact Local Building Inspectors

In most areas electrical work requires an inspection to verify it meets local codes. Contact inspectors to arrange this final check before concealing new wiring.

Ensuring Electrical Safety

Follow best practices to ensure safe, reliable electricity:


Rewiring a home electrical system is an ambitious project that should only be tackled if you have mastered basic electrical skills, have a thorough plan, use extreme caution, follow codes, and get proper permits and inspections. While labor-intensive, it can save thousands of dollars in electrician fees if done meticulously. Pay close attention to safety above all else. With adequate knowledge and preparation, rewiring your own home is an achievable DIY project that allows upgrading and modernizing your electrical system on your own terms.