A flickering light is somewhere between a nuisance and a warning sign. The checks below take a few minutes and rule out the harmless causes.
One thing to know up front: a loose neutral connection can cause flickering across the house and needs prompt professional attention. If the flickering is widespread, don't wait on it — call (561) 786-1337.
Start With the Easy Fixes
- Tighten the bulb — a loose bulb in the socket is the most common single-fixture flicker.
- Try a different bulb — ideally a quality LED. Cheap bulbs flicker more.
- On a dimmer? Check the bulbs are marked dimmable and the dimmer is LED-compatible — old dimmers and new LEDs are a classic mismatch.
One Fixture vs. the Whole House
Flickering in one fixture with the rest of the house steady usually means a bulb, dimmer, or fixture issue — annoying, not urgent.
Flickering across multiple rooms, or lights that dim sharply when a large appliance kicks on, points at the panel or the service feed. Isolated means schedule at your convenience; widespread means call promptly.
Loose Neutral — The One to Take Seriously
A loose neutral — at the panel, the meter, or the utility's side — makes lights flicker across the whole house and can send damaging voltage swings to appliances and electronics.
If the flickering is house-wide and getting worse, call an electrician promptly. If it's on the utility's side, we'll identify that and tell you exactly what to report.
When It Might Be the Utility
If the neighbors' lights flicker too, or the whole house dims and recovers in a pattern, the issue may be upstream of your panel.
Note when it happens and whether it's weather-related, then call us — we'll determine whether it's house-side or utility-side before anyone replaces parts.
Common questions
My LED bulbs flicker on the dimmer. Are the bulbs bad?
Usually not — it's a compatibility problem between old dimmers and LED bulbs. Dimmers designed for incandescent bulbs can't dim LEDs cleanly; swapping to an LED-compatible dimmer fixes it in most cases.
The lights dim every time the AC starts. Is that normal?
A brief, slight dip when a big motor starts is normal. A deep dim that lasts, or lights that pulse while the AC runs, suggests a weak connection or undersized service that should be evaluated.
Can flickering lights damage my electronics?
Sustained voltage swings from a loose neutral can — that's why house-wide flickering deserves prompt attention. A surge protector helps with spikes but doesn't fix a bad neutral.
Should I call the power company or an electrician first?
Call us first. We test at the panel and meter to determine whether the problem is yours or theirs — so you'll call the utility with a confirmed diagnosis, not a guess.
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(561) 786-1337