How to Use Copper Wiring to Improve Your Home’s Electrical System

Upgrading your home's electrical system with copper wiring can provide numerous benefits. Copper is an excellent conductor of electricity and helps prevent energy loss as power travels through your home's circuits. Installing copper wiring improves safety, efficiency, and reliability. This comprehensive guide examines why copper is the ideal choice for residential electrical systems and how homeowners can utilize it to its full potential.

Why Copper is the Best Metal for Electrical Wiring

Copper has been the wiring material of choice for over a century due to its unmatched electrical conductivity. Here's an overview of the advantages of copper:

No other affordable metal on the market today matches the performance characteristics of copper wire. Aluminum wiring gained some popularity in the 60s and 70s but is now banned for branch circuits due to safety issues.

Upgrading Home Electrical Circuits with Copper

Replacing the outdated, degraded, or insufficient wiring in your home with new copper circuits provides:

Hiring a Licensed Electrician

Electrical work should only be performed by licensed electricians. Improper home wiring can cause fires, injury, and even death. When hiring an electrician, be sure to:

A true professional will be happy to provide credentials, explain their full process, and guarantee their copper wiring installation.

Choosing the Right Copper Wire Gauge

The gauge or thickness of copper wire determines how much current it can safely handle. Each circuit has an optimal gauge.

Your electrician will determine the correct wire gauge based on expected electrical load and safety regulations.

Common Copper Wire Applications

Upgrading your home's circuits with copper wire provides opportunity for enhancement. Common improvements include:

Whole House Rewiring

Replacing outdated wiring improves safety and efficiency. Copper wire handles modern electrical loads and voltages. Consult an electrician to overhaul old wiring.

Kitchen Circuits

The kitchen has multiple high-wattage appliances running simultaneously. Dedicated 20-amp copper circuits prevent tripping breakers.

Laundry Room Wiring

Washers and dryers have large electric motors. A shared 30-amp circuit with #10 gauge copper wire prevents electrical issues.

Outlets and Lighting

Multi-strand copper wiring in walls supplies electricity to outlets, switches and light fixtures. Upgrade to allow more devices.

Grounding and Bonding

Proper grounding via copper wires, bars and clamps is vital for preventing shocks and protecting equipment.

Panel and Breakers

Copper wires distribute power from the main panel through circuit breakers providing overload protection.

Safety Systems

Copper wiring also connects smoke detectors, GFCIs and lightning rods to protect life and property.

Maintaining Copper Wiring

To keep your investment in tip-top shape:

Properly installed copper wiring will provide safe, reliable electrical power to your home for generations.


Upgrading home electrical systems with copper wiring provides homeowners increased safety, energy efficiency and convenience. While the initial cost is higher than alternatives, copper is a sound investment that adds value and peace of mind. Work with licensed electricians to be sure your copper installation meets all electrical codes. Maintain your copper wires properly and they will benefit your home for a lifetime.