🔌 Switches & Outlets
Dead outlets, warm switch plates, three-way switches that don't make sense — clear answers for the most-touched parts of your electrical system.
19 guides · page 1 of 2
Tamper-Resistant Outlets: What They Are and Why Code Requires Them
Tamper-resistant outlets look almost identical to standard ones but have a spring-loaded shutter mechanism inside that blocks kids from sticking objects into the slots. They've been required by code in most new construction and remodels since 2008.
Read the guide →
4-Way Switches: Controlling a Light From Three or More Places
If you need a light controlled from three or more locations - a long hallway, a stairway with a landing - you need a 4-way switch in the middle of the run alongside two 3-way switches. Here's how the setup works.
Read the guide →
Outlet and Switch Height Code: Where They're Required to Go
There's no single national number nailed down for outlet and switch height - the National Electrical Code sets spacing and accessibility rules rather than exact inches, and local codes fill in the rest. Here's what actually governs placement, and the heights I use in the field.
Read the guide →
Should an Outlet Face Ground Up or Ground Down? The Honest Answer
It's one of the most argued questions in home wiring, and the truth is: code doesn't require either way. Here's the real reasoning on both sides so you can stop losing sleep over it.
Read the guide →
What Is a Switched Outlet? (Why Half Your Outlet Is Dead)
If a wall switch seems to do nothing — or only half an outlet has power — you probably have a switched outlet, where a switch controls a receptacle for a lamp. Here's how they work and how to change one.
Read the guide →
How to Install a Dimmer Switch (Single-Pole and 3-Way)
Swapping a plain switch for a dimmer is an easy upgrade — but two details trip people up: matching the dimmer to your LED bulbs, and getting a 3-way installation right. Here's how to do both.
Read the guide →
How to Install a USB Outlet (Replace a Standard Receptacle)
Swapping a regular outlet for one with built-in USB ports is one of the most satisfying, beginner-friendly electrical upgrades — no more wall warts. Here's how to do it safely, plus the one wiring wrinkle to watch for.
Read the guide →
Can I Add an Outlet to an Existing Circuit? How It's Done
Adding an outlet by tapping an existing one is a real, common job — but only if the circuit has room and the box is legal to work from. Here's how it works, and the checks that keep it safe and to code.
Read the guide →
How to Wire a Three-Way Switch (Carefully)
Two switches controlling one light is one of the most useful — and most confusing — bits of home wiring. Here's how a three-way circuit is actually put together, the terminals that matter, and an honest word on why this one trips up even handy people.
Read the guide →
Dryer Outlet: 3-Prong vs. 4-Prong (and Why It Changed)
Your new dryer's cord doesn't match your old outlet — a classic, frustrating mismatch. Here's why the code changed from three prongs to four, which one you should have, and the one thing you must never do to make them fit.
Read the guide →
How to Install a GFCI Outlet (and the One Mistake to Avoid)
Adding GFCI protection to a kitchen, bath, garage, or outdoor outlet is a reachable homeowner job — but there's one wiring detail that, gotten backwards, silently removes the very protection you're installing. Here's how to do it right.
Read the guide →
How to Replace an Outlet Safely (Step by Step)
Swapping a worn or damaged receptacle is one of the few electrical jobs many homeowners can do safely — if you kill the power, verify it's dead, and wire the new one exactly like the old one. Here's the careful way.
Read the guide →