Turn off power at the breaker before you touch anything inside the outlet box
Replacing an outlet is a task you can do yourself if you follow the safety steps in order. The first and most important step is to cut power to that outlet at your electrical panel. Flip the breaker switch all the way to the off position — not just partway. If you do not know which breaker controls that outlet, turn it off and test the outlet with a lamp or phone charger to confirm the power is gone.
Once power is off, use a voltage tester (a small handheld device you can buy at any hardware store for under $15) to double-check that the outlet is dead. Touch the tester to both the hot and neutral slots inside the outlet. If it does not beep or light up, the power is truly off and you can proceed. This step takes 30 seconds and prevents serious injury or death.
Key Takeaways
- Always turn off the breaker and test with a voltage tester before removing an outlet from the wall.
- The hot wire (usually black or red) connects to the brass screw, the neutral wire (usually white) connects to the silver screw, and the ground wire (usually bare copper or green) connects to the green screw.
- Loosen each screw fully, pull the wire out, and reconnect it to the same color screw on the new outlet in the same order.
- Push the outlet straight back into the box and screw the cover plate on; do not force it or bend the outlet.
Remove the old outlet by loosening the terminal screws
Once you have confirmed the power is off, unscrew and remove the cover plate. You will see the outlet itself held in the wall box by two screws at the top and bottom. Remove those screws and gently pull the outlet straight out toward you. Do not yank it — the wires are still attached on the back.
You will see three wires connected to the back of the outlet, each attached to a screw. The hot wire is usually black or red and connects to a brass-colored screw. The neutral wire is usually white and connects to a silver-colored screw. The ground wire is usually bare copper or green and connects to a green screw. Loosen each screw by turning it counterclockwise until the wire comes free. Loosen fully — do not leave the wire half-attached.
Connect the wires to the new outlet in the same order
Take your new outlet and position it so you can see the screws clearly. Insert the hot wire (black or red) under the brass screw and tighten the screw clockwise until it is snug. Do the same with the neutral wire (white) under the silver screw, and the ground wire (copper or green) under the green screw. Tighten each one firmly but do not overtighten — you want the wire held securely, not crushed.
A common mistake is reversing the hot and neutral wires. If you are unsure which wire is which, stop and take a photo of the old outlet before you disconnect it. You can also call a licensed electrician at this point — the cost of a service call is less than the cost of an electrical fire.
Push the outlet back into the box and secure it
Once all three wires are connected and tight, carefully push the outlet straight back into the wall box. The outlet should slide in smoothly without resistance. If it does not, stop and check that no wire is pinched or bent. Once the outlet is flush with the wall, insert and tighten the two screws that hold it in place — one at the top and one at the bottom.
Screw the cover plate back on and turn the breaker back on. Test the outlet with a lamp or phone charger to confirm it works. If nothing happens, turn the breaker off again, check that all three wires are still tight, and test once more. If it still does not work, turn the breaker off and call an electrician.
Know when to call an electrician instead
Do not attempt this task if the outlet is wet, if you see burn marks or melted plastic around it, or if you smell burning when you touch the breaker. These are signs of a serious electrical problem that requires professional repair. Also stop if you cannot identify which wire is which, if the wires are damaged or cracked, or if the outlet box itself is damaged.
If you live in a rental, check your lease and local tenant laws before replacing an outlet. Some jurisdictions require a licensed electrician to do any electrical work, and some landlords prohibit tenants from making any changes to the electrical system. Doing work you are not allowed to do can result in losing your security deposit or facing other penalties.
Understand the difference between standard and GFCI outlets
A standard outlet has two vertical slots and a round hole below them. A GFCI outlet (ground fault circuit interrupter) has two vertical slots, a round hole, and a test button and reset button on the face. GFCI outlets are required by law in kitchens, bathrooms, garages, and anywhere near water. If you are replacing an outlet in one of these locations and the old one was a GFCI, install a GFCI outlet in its place. If the old one was standard, check your local building code — you may be required to upgrade it to GFCI.
The wires connect to a GFCI outlet the same way they connect to a standard outlet: hot to brass, neutral to silver, ground to green. The only difference is the buttons on the face and the extra protection the outlet provides.
Frequently Asked Questions
What if I turn the breaker off and the outlet still has power?
Stop immediately and do not touch the outlet. This means either the breaker is not the right one, or there is a wiring problem. Turn off the main breaker (the large switch at the top of your panel) and test again. If the outlet still has power, call a licensed electrician — this is a serious safety issue.
Can I replace an outlet while the power is on if I am very careful?
No. Even experienced electricians turn off the power first. Touching a live wire can cause severe burns, heart problems, or death. There is no amount of care that makes this safe.
What if the wires are too short to reach the new outlet?
Do not stretch them or use a connector to extend them inside the wall box. This is a fire hazard. Call an electrician to run new wire or install a junction box with a cover plate.
Do I need a permit to replace an outlet?
Most jurisdictions do not require a permit for replacing an outlet with the same type, but some do. Call your local building department or check their website to confirm. If you are a renter, ask your landlord before doing any work.
How do I know if my outlet is grounded?
A grounded outlet has three holes: two vertical slots and one round hole below them. An ungrounded outlet has only two vertical slots. If you are replacing an ungrounded outlet and you see a bare copper or green wire in the box, you can install a grounded outlet. If there is no ground wire, install an ungrounded outlet to match what is already there.