How to Rewire Your Home’s Electrical System Without an Electrician


Rewiring your home's electrical system can seem like a daunting task, but with proper planning and precautions, it can be done safely without hiring an electrician. There are several reasons why you may want to rewire your home, such as upgrading to a higher amperage, replacing old and outdated wiring, or adding new circuits and outlets.

I will walk through the complete process step-by-step, from planning and preparation to wiring and testing the new system. Proper safety precautions will be emphasized throughout to ensure you avoid electrical hazards. By the end, you will have the confidence to rewire your home’s electrical system to modern standards and add capabilities without paying electrician fees.

Safety Precautions

Before beginning any electrical project, safety should be your top priority. Electricity can cause severe burns and injury if mishandled. Here are some key safety tips:

Following these precautions reduces your risk of electrical hazards like shocks, burns, and electrocution. Safety first!

Planning the Rewiring

Careful planning is crucial before you start any rewiring project. Rushing in without planning often leads to mistakes and rework. Follow these planning steps:

Evaluate Your Current Electrical System

Create a Wiring Diagram

Draw up a wiring diagram detailing all the new circuits you plan to install. This should illustrate:

Having this detailed map makes installation much easier. You can purchase wiring diagram software or find free templates online to use.

Purchase All Necessary Electrical Supplies

Make a list of everything you will need for the rewiring based on your wiring plan. Some essential supplies include:

Getting all materials beforehand avoids wasting time with multiple trips to the hardware store during the rewire.

Wiring the New Circuits

With your project fully planned out, it’s time to get to the actual rewiring. Follow these steps:

Mount the New Breaker Panel

Install your main circuit breaker panel and any new subpanels according to manufacturer instructions and electrical code. Position them in accessible locations since you will need to access them for the full wiring.

Run New Circuit Wiring

Run the different home run wires from the breaker panels to their destination outlets and switches:

Connect Switches and Outlets

Connect the circuit wires to the correct terminals on each receptacle and switch:

Follow the wiring diagram to ensure every connection goes to the intended location.

Label All Circuits

Clearly label the breakers for each circuit in the panel so they can easily identified. Also label receptacles to show which circuits they are on. This avoids confusion later when circuits need to be shut off during repairs or additions.

Testing and Turn On

With all the new wiring complete, it’s time to test and energize the system:

Check All Connections

Visually inspect every wire termination and connection:

Fix any issues to ensure safe and reliable performance.

Power Up and Test Each Circuit

Turn on the main breaker then switch on and test each individual circuit:

This validates that your complete rewiring was successful before the walls get closed up!


While rewiring your home is a major project, it can be successfully accomplished without an electrician if done safely and methodically. The key steps are proper planning, running new wiring, making reliable connections, and thorough testing.

Pay strict attention to safety precautions when working with electricity and shut off power at the breaker before starting. Rewiring your home’s electrical system takes time and diligence, but gives you modern wiring capabilities that make additions and upgrades much easier in the future. You will gain the satisfaction of saving on electrician labor fees and adding value to your home when you complete this DIY electrical project.