How To Install A Light Switch In A Finished Wall

Place switch in the wall box.

How to install a light switch in a finished wall.

Twist and connect wires. To wire the ceiling fixture to the new wall switch first connect the copper grounding wire to the fixture. After removing the black wire to the fixture s lead splice it into the new white wire. Restore power and test the switch.

Install the wall plate. For a ceiling fan or a heavy light fixture buy a fixture box that attaches to a fan rated brace. Gently bend the wires and push the switch into the wall box. Mark this wire black.

Complete the project by mounting the light fixture screwing the switch to the box and installing the cover plate. Select boxes that meet local codes. Install globes and bulbs. Tighten the mounting screws to secure the switch to the wall box.

Select boxes that meet local codes. Fold the wires into the junction box then place the fixture over the studs or nipple then attach with the cover plate per the manufacturer s instructions. Connect the wires as shown in figure a. Cover with a switch plate.

Connect the hot wire to the side of the double switch that has the jumper tab between the terminals photo 7. When you need to add an outlet or switch in an existing wall you need to use a special electrical box called an old work box an old work electrical box may be metal or plastic and is specially designed to be installed in an existing wall where it has no support other than the wall itself. To ensure that frequently used switches last longer purchase a spec rated or commercial device. White to white black to black and copper to copper.

Then splice the fixture s black lead into the new black wire. If the drywall or plaster is damaged cut a larger hole and install a box that attaches directly to a stud or joist.