(478) 390-3221
All Articlesdon the electrician

DIY Guide: Fixing a Light Switch

Don Fullman2026-02-24

DIY Guide: Fixing a Light Switch (2026-02-24): Don the electrician breaks down the process of troubleshooting common electrical problems. Learn how to safely identify and fix minor electrical issues.

One common problem that many homeowners come across is a faulty light switch. If you're confident with DIY tasks, you can easily fix this problem by following this comprehensive guide. Remember, safety is paramount when dealing with electricity. If you're uncertain, consider consulting a professional electrician.

Tools Needed

  • Screwdriver

  • Wire Cutters/Strippers

  • Voltage Tester

  • Replacement Switch

Estimated Time

Approximately 1 hour.

Estimated Cost

Around $15-$30 for a new light switch and $15-$50 for a voltage tester if you don't already have one.

Steps to Fixing a Light Switch

1. Safety First

Before starting any electrical work, always turn off the power at the main circuit breaker. Use a voltage tester to confirm the power is off.

2. Remove the Switch Cover

Use a screwdriver to remove the screws on the switch cover, then carefully remove the cover.

3. Check the Switch

With the cover removed, you should see the switch. Check the switch for any visible damage. If it looks corroded, burnt, or damaged, you will need to replace it.

4. Remove the Old Switch

Use a screwdriver to remove the screws holding the switch in place. Pull out the switch and use a voltage tester to ensure no current is passing through the wires. If safe, disconnect the wires from the old switch.

5. Connect the New Switch

Connect the wires to the new switch. Ensure each wire is securely attached and in the correct position. Screw the new switch into place.

6. Replace the Cover

Put the switch cover back on and screw it into place. Then, turn the power back on at the main circuit breaker.

7. Test the New Switch

Test the new switch to ensure it's working properly. If you encounter any problems, turn off the power and check your connections again.

Safety Tips

  • Always turn off the power at the main circuit breaker before beginning any electrical work.

  • Use a voltage tester to ensure the power is off before you touch any wires.

  • Never touch exposed wires with your bare hands. Use tools with insulated handles.

For more information on electrical safety, check out the Electrical Safety Foundation International's tips.

Keep Reading

Ready to get wired?

Call Don directly, straight answers, fair pricing, fast scheduling.

(478) 390-3221