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Get current on the aspects of home electricity, with how to's from planning to installation and beyond.

How to Install a GFCI Outlet

Is your wiring more than 20 years old? Consider upgrading to GFCI outlets for your next home improvement project.


How to Wire a Portable Generator

Ask This Old House master electrician Heath Eastman explains a few different methods for hooking up a portable generator to a house.

Inside Your Home’s Electrical Service Panel

Get essential knowledge about your home’s power distribution center.

How to Install a Dimmer Switch

Installing a dimmer switch is one of the easiest DIY electrical projects you can do. Read these steps on how to install one in your home.

How to Choose an Electrical Box

Ask This Old House master electrician Heath Eastman explains the uses and purposes of different types of electrical boxes.


How to Wire Outdoor Speakers

This Old House general contractor Tom Silva shows how to snake wires through walls for a pair of outdoor speakers

All About Electrical Systems

A general overview of how electrical systems in the home have dramatically changed and advanced over the years.


Ask TOH Know-How: A Device That Makes “Sense”

In this episode, Ross learns about a super-savvy energy expenditure monitoring device that can help homeowners conserve energy—and save money

Outlet Installation with a Master Electrician

Look over the shoulder of electrician Heath Eastman as he installs an electrical outlet in our Brookline project house to learn a few tricks of the trade.

Clean Up Your Breaker Box

Pay it forward to your house’s future residents (and your current electrician) by ensuring that your breaker panel’s labels are legible, accurate, and easy to interpret, using…

Power Outage Protection at the TOH 2018 Idea House

When the lights go out, a generator is your first line of defense. Here’s how to choose the right type for your home.

Home Safety: Why You Should Conduct an Electrical Audit

You remember to change the batteries in your smoke/CO detectors. You have guards on your windows. There’s a high-tech security alarm at your door. The safety of your home and its occupants is always top of mind. But when was the last time you thought about the safety of your electrical system? Read on to find out when it may be time to conduct an electrical audit of your home, and how to go about it.

Tankless Water Heater

Best Uses for an Electric Tankless Water Heater

Ask This Old House plumbing and heating expert Richard Trethewey discusses which houses are the best fit for an electric tankless water heater

Turn an Outlet into a USB Charger

Adapt your wall socket to a charging station

What You Need to Know About a Career as an Electrician

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The Importance of Surge Protection

Ask This Old House master electrician Scott Caron demonstrates how surge protection safeguards a home’s appliances and electronics.


How to Install a Manual Transfer Switch for a Portable Generator

Ask This Old House master electrician Scott Caron visits Alaska to install a portable generator with a manual transfer switch to power hardwired appliances like a well pump and heating system using unleaded gasoline


How to Choose Wire Nuts for Your Projects

Ask This Old House master electrician Scott Caron explains the differences between wire nuts of various sizes and colors.


How to Diagnose and Repair Three-Way Switch Problems

Ask This Old House master electrician Scott Caron looks at a three-way switch issue and fixes the problem.

23 Things You Didn't Know You Could Fix Yourself

Expand your DIY repertoire and save money by making bathroom, kitchen, and outdoor repairs yourself.


How to Conceal Electrical Wires with Crown Molding

Ask This Old House master electrician Scott Caron uses crown molding to conceal wiring and bring more electrical outlets to a bedroom


How to Install Track Lights and Speakers

Scott Caron, master electrician for Ask This Old House, installs LED track lights and LED track lights with Bluetooth speaker technology to brighten up a loft bedroom


How to Repair a Three-Way Light Switch

Ask This Old House host Kevin O'Connor helps a homeowner fix a faulty three-way switch


How to Choose a USB Outlet

Electrician Scott Caron walks through the best options when it comes to USB wall outlets in your home


How to Install an Automatic Standby Generator

This Old House host Kevin O'Connor describes how to combat power outages with a standby generator


How to Select Electrical Testers

Ask This Old House lighting expert Scott Caron gives Kevin a tutorial on electrical testers to make sure you never work on live wires


How to Install Surge Protection

Electrician Scott Caron installs several types of surge protection


How to Hang a Flat-Panel TV with Concealed Wiring

Electrician Scott Caron hangs a flat-screen TV on the wall and conceals all the wiring


How to Run Underground Wiring to a Garage

Electrician Scott Caron shows a homeowner how to bring power to a detached garage


How to Add Task Lighting to a Kitchen

This Old House host Kevin O'Connor works with an electrician to help a couple add task lighting to their dark kitchen

Prevent Electrical Fires with Arc-Fault Circuit Interrupters

Electronic sentinels in your outlets offer protection from electrical fires


How to Install Recessed Lighting in a Kitchen

Ask This Old House electrician Scott Caron demonstrates how to install recessed light fixtures in a finished ceiling