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Electrical

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

What is a Junction Box & How to Install One 

Take an inventory of your home’s electrical system, and you’ll find cables, outlets, switches, circuit breakers, and boxes. An electrical box provides a code-approved place to house cable connections, whether for outlets, switches, or splices. Read on to learn more about junction boxes and how to install one.

S20 E32, Heath Eastman in the Tool Lab discussing basic electrical tools
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Tool Lab | Basic Electrical Tools

Master electrician Heath Eastman walks us through his favorite electrical hand tools that all DIYers should own.

The 5 Best Solar Generators (2022 Review)

A solar generator gives you backup energy from the sun should your electricity fail. In this review, the This Old House Reviews Team researched the five best solar generators on Amazon to help you find the product that’s right for you and your home. The products included in this article are available at various home improvement stores, local home centers, and online retailers like Amazon.

S20 E25, Heath Eastman discusses LED lighting
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LED Light Bulbs 101

Master electrician Heath Eastman enlightens host Kevin O’Connor on everything he needs to know about LED bulbs.

S20 E23, Kevin O’Connor learns about smart electrical panels from Heath Eastman and Ross Trethewey
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Understanding Smart Electrical Panels

Home technology expert Ross Trethewey and master electrician Heath Eastman teach host Kevin O’Connor about this new wave of electrical technology.

Ben Giles shows Kevin O’Connor a smart electrical panel at the Narragansett Idea House
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TOH Know-How: A Smarter Panel for Easier Electrical Installation

At the TOH 2018 Idea House, electrician Ben Giles shows Kevin O’Connor the innovative and intuitive new load center from Leviton

S20 E5, Heath Eastman installs recessed lights
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How to Install Recessed Lighting

Do you have a room that can benefit from recessed lighting? Brighten up your home by installing this simple fixture that can make a huge difference. Watch this DIY Smarts project, as This Old House master electrician Heath Eastman installs recessed lights in a homeowner’s playroom.

S20 E18, Heath Eastman explains switch legs to Kevin O’Connor
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Understanding Switch Leg Wiring

Master electrician Heath Eastman explains a common issue he finds in many folks’ homes—switch leg wiring—and explains how to fix it.

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How to Install an Antique Light Switch

Ask This Old House master electrician Heath Eastman replaces a standard toggle switch with a reproduction antique push button switch to match the rest of the house

S20 E14, Heath Eastman
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Why Heath Loves Electrical Finish Work

Master electrician Heath Eastman explains which phase of an electrical project he loves the most.

S20 E9, Heath Eastman discusses voltage testers with Kevin O’Connor
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How To Use an Electric Voltage Tester

Host Kevin O’Connor and master electrician Heath Eastman discuss the different uses for voltage testers and test some of Heath’s favorite models.

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How to Install an AFCI Circuit Breaker

Ask This Old House master electrician, Heath Eastman, wraps up an electrical project he started over a year ago by replacing the circuit breaker at his panel with one that is up to code.

S20 E8, Heath Eastman wires a shed
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How to Wire a Shed for Electricity

Master electrician Heath Eastman helps Mason Mark McCullough wire his chicken barn for lights and power.

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How to Run Electricity to a Shed

Electrician Scott Caron shows us how he powers an outbuilding—which takes wiring knowledge as well as lots of digging.

S20 E5, Heath Eastman discusses electrical tools with Kevin O’Connor
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Top 7 Tools for Electrical Projects

Master electrician Heath Eastman shows host Kevin O’Connor the tools he uses the most during day-to-day electrical work.

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How to Do Electrical Projects with Two Tools

Scott Caron, master electrician for Ask This Old House, explains how two tools are all it takes to do many electrical projects

How to Strip Wire

As a DIYer, you know there are plenty of tasks around the house that are too small to justify calling in the pros. Stripping wire may fall into this category. Read on to learn simple and safe ways for stripping electrical wires in your home.

S20 E1, Heath Eastman on two-prong outlets
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Changing a Two-Prong Outlet to Three

Learn how to replace a two-prong outlet without the expense of rewiring.

The 5 Best Solar Panels (2022 Review)

Installing solar panels can reduce your environmental impact and save you money on your utility bill. In this review, the This Old House Reviews Team researched the five best solar panels on Amazon to help you find the product that’s right for you and your home. The products included in this article are available at various home improvement stores, local home centers, and online retailers like Amazon.

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How to Install Outdoor Landscape Lighting

Heath Eastman demonstrates how to install landscape lighting along a garden path. Adding landscape lighting to a walkway or path can improve the look and experience of the area.

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How to Replace a Lamppost

Master electrician, Heath Eastman helps a homeowner replace his front lamppost with some hilarious code violations with a new post.

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What’s New with EV Chargers

Ask This Old House master electrician, Heath Eastman, and home technology expert, Ross Trethewey, discuss the progression of electric vehicle chargers and the role they imagine EV chargers will play in homes in the future.

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Open House | Electrical Inspection

Ask This Old House Master Electrician, Heath Eastman, explains what to look for during a home electrical inspection.

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How to Ground a Two-Prong Electrical Outlet

Ask This Old House master electrician Heath Eastman explains the purpose of a ground wire and then grounds an outlet for a homeowner.

How to Hang a TV on Brick Wall

Can you mount a TV on a brick wall? Absolutely. But mounting a TV on brick does take more preparation, knowledge, and tools than installing one on drywall. This guide will show you how to hang a TV on a brick wall so you can make the most of your wall space and elevate your entertainment.

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How Fuses and Circuit Breakers Work

Ask This Old House electrician Scott Caron demonstrates how fuses and circuit breakers protect a home.

Automatic Backup Power at the Seaside Victorian Cottage

At the This Old House Seaside Victorian Cottage, editor Chris Ermides meets up with electrician Ben Giles of South Shore Electrical to discuss everything you need to know about how to find the right home standby generator for your needs, and why placement matters.

Whole House Surge Protectors: How Effective Are They?

Don’t count on power strips to safeguard your home and fragile electronics. Read on to learn about the cost-saving alternative of installing a home surge protector.

Installing a Floodlight: An Electrical Upgrade for DIYers

Wiring projects are not for everyone, but there are some basic upgrades most homeowners can handle. First up: installing a floodlight.

Inside an Electrical Outlet

A cracked, loose, or (ouch!) shocking electrical receptacle is a candidate for replacement. But before you head out shopping for a new one, know what to ask for and how to connect everything safely.

The 5 Best 220 to 110 Adapters (2022 Review)

Before your next trip overseas, make sure you can use your devices with an adapter and converter from our list of the best 220 to 110 adapters on Amazon.

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How to Safely Hang Outdoor Christmas Lights

In this DIY Smarts, This Old House Master Electrician Heath Eastman helps a homeowner safely install a variety of Christmas lights.