IQHab › United States › Electrical › Lights Flickering — Causes
Lights flickering
Flickering lights can be a harmless bulb issue or a wiring problem. Here's how to tell.
Before anything — check these
If any of these are true, stop and get professional help now:
- Flickering house-wide
- Burning smell
- Sparking
Safe checks you can do
Tick what you've checked. Only do homeowner-safe actions.
Likely causes
| Cause | Likelihood | Severity | Cost |
|---|---|---|---|
| Loose bulb | high | Low | $0–$10 |
| Overloaded circuit | medium | Low | $0–$100 |
| Faulty fixture | medium | Low | $20–$150 |
| Wiring problem | low | High | $150–$800 |
Recommended next action
Tighten the bulb first. If it flickers across multiple lights or you smell burning, call an electrician.
Plan the fix
Once you know roughly what's wrong, size the job and get a cost range:
Electrical Project Estimator