How to Replace a Light Switch (DIY Guide with Video)

1.9 min readPublished On: July 6th, 2025

If you’ve ever looked at a light switch and thought, “I could probably replace that myself,” you’re absolutely right. In this hands-on how-to video, Andrew Thruston from P. J. Hussey Construction walks you through exactly how to replace a light switch safely, quickly, and confidently.

Whether you’re flipping an outdated fixture or fixing a faulty one, this video breaks it down with real-world tips, proper safety steps, and a pro’s point of view.

🎥 Watch the full video:

Table of Contents

Tools You’ll Need

  • Insulated gloves
  • Drill or screwdriver
  • Wire strippers (Lady Dykes)
  • Replacement light switch
  • Trash pouch or tool belt (optional)

Step-by-Step Instructions

  1. Turn off power (ideally): Andrew shows how to do this even with power on, but we recommend turning it off at the breaker.
  2. Remove the faceplate using a screwdriver or drill.
  3. Loosen the switch screws and gently pull the switch away from the wall.
  4. Identify the type of switch: This video covers a standard two-pole (not a three-way).
  5. Use insulated gloves when handling hot wires if power is not off.
  6. Remove the old switch by disconnecting the wires.
  7. Strip the wires with electrical snips.
  8. Install the new switch using quick-connect technology for a clean, fast finish.
  9. Reattach to the box, screw it in, and replace the faceplate.
  10. Test the switch once power is restored.

Frequently Asked Questions

Is it safe to replace a light switch yourself?

Yes, if you follow safety precautions like turning off the breaker or using insulated gloves. Always double-check with a voltage tester.

How do I know if I have a two-pole or three-way switch?

A two-pole switch controls one light from one location. A three-way switch controls one light from two different locations, like a staircase.

Do I need a permit to replace a light switch?

Not usually for simple replacements, but always check local building codes if you’re doing more than a basic swap.

Can I replace a switch without turning off the power?

It is possible, as shown in the video, but not recommended unless you’re confident and properly insulated. Always prioritize safety.

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