Install an Outlet in Your Living Room

Outlets multiply where you need them, not where builders decided thirty years ago. A living room designed around a single couch now holds a reading chair, a floor lamp, and a side table with a charging station — all competing for one duplex receptacle buried behind the furniture. Adding an outlet is straightforward electrical work that opens up furniture arrangements and eliminates extension cords snaking across baseboards. Done right, the new outlet blends invisibly into the wall, delivers safe power exactly where you use it, and follows code without compromise. The project takes an afternoon and transforms how you use the room.

1. Kill Power, Plan Smart. Kill power at the breaker to the entire room circuit, not just the switch. Use a non-contact voltage tester at multiple outlets to confirm the circuit is dead. Locate an existing outlet you'll tap into for power, ideally on the same wall or an adjacent wall to minimize cable run. Mark your new outlet location 12 to 18 inches above the floor, matching the height of existing outlets in the room.
2. Probe Before You Cut. Hold a single-gang old-work box against your mark and trace around it. Cut the opening with a drywall saw, checking for studs and obstructions first. At your source outlet, remove the cover plate and receptacle, then knock out a cable opening in the box. Fish 14/2 NM-B cable from the new opening to the source box using a fish tape or stiff wire, allowing 8 inches of extra cable at each end.
3. Mount Box Flush. Strip 6 inches of outer sheathing from the cable end and feed it through a knockout in your old-work box, leaving 6 inches of wire extending beyond the box face. Insert the box into the wall opening and tighten the mounting ears until the box sits flush and secure. The front edge of the box should be flush with the finished wall surface, not recessed.
4. Match Colors Exactly. At the source box, strip the new cable and connect it in parallel with existing wires using wire nuts — white to white, black to black, ground to ground. If the source outlet is at the end of a circuit with only one cable, attach the new black wire to the brass terminal, new white to silver, and new ground to green. Carefully fold wires back into the box and reinstall the receptacle.
5. Hook and Tighten Firm. Strip half an inch from each wire end at your new box. Form clockwise hooks and attach to the new receptacle — black wire to brass screw, white to silver screw, bare ground to green screw. Tighten screws firmly so no bare wire shows beyond the terminal. The ground wire can also connect to the box ground screw if your box is metal.
6. Verify Power First. Push wires carefully into the box, accordion-folding them rather than cramming. Mount the receptacle with screws, keeping it level and flush with the wall. Install the cover plate. Restore power at the breaker and test with a plug-in circuit tester to verify correct wiring — two amber lights indicate proper hot, neutral, and ground connections.
7. Blend Into Wall. Fill any gaps around the new box with spackle or joint compound, feathering edges smooth with a putty knife. Let dry completely, sand lightly, and touch up paint to match the wall. The outlet box ears should hold the box tight enough that no additional patching is needed if your cut was clean.