How To Extend Electrical Wire Inside Wall

Splices need to be done inside a junction box and those junction box must remain accessible once the wall is closed up.

How to extend electrical wire inside wall.

The family handyman editor rick muscoplat shows you how to splice in jumper wires to give you the slack you need. Drill left to right or right to left through a wall stud with power drill and a 1 1 4 inch bit working through the access openings that you cut in the drywall. You will need to reroute these cables to a different junction box somewhere the wiring is able reach with the needed spare length inside the box. Insert a clamp with wires attached into the junction box hole and from inside the box push the included nut over the wires and onto the clamp threads.

Wire that short can t be spliced or extended. Avoid nicking or scratching the copper wire while removing the insulation. If you don t want to re run longer cables you ll need to splice in some additional cable. When working with electrical you will run into a situation where someone didn t leave enough slack inside the electrical box.

Next run wire from the existing junction box to each box base. You ve pretty well identified your two choices. Drill one hole through every stud. Published on dec 30 2015 a quick demonstration on how to join up the electrical wire when cutting it and adding an extension.

Cut the sheathing to remove it and strip off about 3 4 inch of the plastic insulation from the end of each wire. With the exception of switch boxes that do not have a neutral wire and switch controlled fixtures at the end of a circuit to extend a circuit you can simply tap into that circuit at any easily accessible receptacle switch fixture or junction box. From there you can run a 2 w ground cable to this location e g. The method is called a western union splice where you join two ends.