Wiring

Wiring is the network of electrical cables and connections that powers everything in your home, from lights and outlets to major appliances. Whether you're upgrading an older system, adding circuits for a renovation, or troubleshooting flickering lights, understanding your home's wiring helps you make informed decisions. Angi connects you with pros who can handle any electrical project and provides resources to guide you along the way.

Related to Wiring

Wiring Articles and Advice
Deirdre Sullivan  •  Apr 10, 2026
How to Install Doorbell Wiring Like a Pro
Doorbell wiring is a project you can DIY. This guide covers everything you need to know, from different types of doorbells to wiring, and how to remove an old doorbell.
Deirdre Sullivan  •  Apr 10, 2026
Is Knob and Tube Wiring Safe for Your Home?
Knob and tube wiring is a type of electrical wiring that’s no longer used (and for good reasons). Learn all about it and what to do if you find it in your home.
Gemma Johnstone  •  Apr 10, 2026
How Long Does It Take to Rewire a House?
How long does it take to rewire a house? Here’s how long it will take a professional electrician to install a new electrical system in your home.
Allie Ogletree  •  Apr 10, 2026
How To Use a Wire Gauge Amp Chart
Wire sizes vary based on the ampacity of a circuit and more. Use this wire gauge amp chart to help you choose the correct wire size for your electrical circuit.
Kyle Schurman  •  Apr 10, 2026
Is the Black Wire Positive or Negative? How to Tell Electrical Wires Apart
Do you know if the black wire is positive or negative? If not, stop right now and check out our guide on differentiating electrical wires.
Breyden Kellam  •  Apr 10, 2026
Planning for Electrical Wiring of a New Home: Everything You Need to Know
Electrical wiring is an essential part of new home construction. Learn how to devise a solid plan for all of your new home’s electrical needs.
Alison Kasch  •  Apr 10, 2026
What Does the Neutral Wire Do? Understanding the Basics of Electrical Wiring
The white wire in an outlet is known as the neutral, but what does the neutral wire do? Here’s the important role it plays in your home’s electrical system.
Amy Freeman  •  Apr 10, 2026
Understanding Your Electric Fence Wiring Diagram
Learn how to read an electric fence wiring diagram—knowing the parts of an electric fence can give you a better understanding of how it works.
Find Electricians near you
Share your project details and we’ll match you with up to 3 available pros near you.
Common Wiring Questions

Installation costs range from $100 to $300 per jack, depending on the wiring complexity, labor, and wall access.

The hot wire is typically black, but it's essential to use a non-contact voltage tester to confirm the electrical wire color code before working on it. Neutral wires are typically white. It’s vital to determine which wire is carrying electrical current before proceeding with any electrical work.

Knob and tube wiring is an older type of electrical wiring that's no longer used and generally not considered safe. However, some homes still have it, or may have a knob and tube wiring system that was incorrectly modified or rigged to work with a modern electrical system. Knob and tube wiring may contain asbestos insulation, but the only way to know is to have the material professionally tested.

To avoid drilling into wire, you will need to trace your home's wiring using a stud finder, wire detector, circuit tracer, or voltage finder. Since locating wires in your home can be difficult for some homeowners, hire a professional electrician with the experience and knowledge needed to safely handle electrical systems before drilling into any walls in your home.

Wiring or installing a light the wrong way can lead to potentially dangerous scenarios, including shock and even electrical fires. If you’re the least bit uncertain whether you’ve wired something correctly, the best and safest approach is to call in a professional electrician to handle the installation for you.