How do I install a 3-way switch?

Installing a three-way switch in a new location requires an intricate knowledge of internal residential wiring, because another “hot” wire has to be run to the switch. If you’re unfamiliar with how to do this, call an electrician to install the switch for you.

If you feel like you can install the switch on your own, some guidance may be of help for the three-way switch as well as other switches.

Check your state and local codes before starting any project. Follow all safety precautions. Every effort has been made to ensure the accuracy and safety of this information. Neither Westlake nor any contributor can be held responsible for damages or injuries resulting from the use of the information in this document.

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