Flickering or dimming lights
One flickering bulb is usually a bulb or fixture. Lights that dim across the house when something starts, or flicker in several rooms, deserve a closer look.
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Where the flicker happens tells you a lot. A single fixture points to the bulb, dimmer or fixture. Several rooms, or dimming when the AC or a big appliance starts, points to the circuit, the panel or the service.
What you might notice
- One fixture flickers
- Lights dim when the AC, dryer or microwave starts
- Flicker in several rooms at once
- Lights brighten and dim unpredictably
- Flicker with buzzing, heat or smell
Common causes
Bulb or dimmer compatibility
LED bulbs on older dimmers often flicker.
Loose connection
At the fixture, switch or a splice, which can heat up.
Heavy load starting
Big motors briefly dip voltage, especially on shared or undersized circuits.
Panel or service issue
Problems at the panel or the utility connection can affect the whole house.
What you can safely do
- Try a new bulb rated for the fixture and dimmer
- Note which lights flicker and when
- Check whether neighbors see it too (a utility issue)
- Keep a short log: time, what was running, which rooms
How a Uniform electrician diagnoses it
We look at the pattern, test voltage at fixtures and at the panel, check connections and dimmers, and measure what happens when heavy loads start. If it's at the utility side, we'll tell you and help you report it.
Repair options
| Option | When it fits |
|---|---|
| Replace dimmer or fixture | The problem is isolated to one location. |
| Repair connections | Loose or overheated connections. |
| Dedicated circuit | A heavy appliance shares a lighting circuit. |
| Panel or service repair | The fault is at the panel or service. |
You get a written estimate after diagnosis and before any work starts, including any permit. See what changes a quote in our Naples electrician cost guide.
Why homeowners choose Uniform
The electrician who comes to your home has passed a guaranteed background check and works for a licensed, insured electrical contractor. Florida license number posted at launch. Verify any Florida electrical contractor at DBPR.
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Tell us what's happening and we'll call you to schedule. Every visit starts with diagnosis and a written estimate.
Other electrical problems: breaker keeps tripping, dead or hot outlet, burning smell or buzzing, partial power outage, power surge damage, gfci keeps tripping, fan or light not working, generator not working, ev charger tripping.
Frequently asked questions
Are flickering LEDs dangerous?
Often it's just dimmer compatibility. But widespread flicker or flicker with heat isn't something to ignore.
Why do lights dim when the AC starts?
A brief dip is common; a big or worsening dip can mean a loose connection or undersized wiring.
Should I call the utility?
If neighbors see it too, yes. Otherwise call an electrician.
Need an electrician you can trust in your home?
Call now. We'll ask a few questions, give you an honest arrival window and send a background-checked, licensed technician in uniform.
(856-864-3676) · Toll-free number**Restrictions may apply.
On a computer?Scan with your phone camera to call.