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Electrical Installation

Read through step-by-step tutorials to help you prepare for any installation pertaining to your electrical.

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.

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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.

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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.

Electrician Heath Eastman shows a homeowner how to wirelessly connect more than one light switch.
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How to Wirelessly Connect Multiple Light Switches

Ask This Old House master electrician Heath Eastman helps a homeowner connect four separate switches that control six lights in the same room

The 5 Best 220 to 110 Adapters (2021 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.

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.

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.

How to Install Home Solar Storage

Ask This Old House plumbing and heating expert Richard Trethewey learns how to add storage to an existing photovoltaic array.

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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

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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

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How to Connect a 220-Volt Receptacle to a 20-Amp Breaker

Providing an outlet for high-powered tools and appliances with master electrician Allen Gallant

How to Hang a Flat-Screen TV

Hide unsightly electrical cords the right way

How to Rewire a Vintage Entry Lantern

Hung in a front entry or a cozy corner indoors, these pendant-style fixtures cast a soft ambient light that's both charming and inviting