What causes flickering lights in a house and how to fix them?

Most flickering comes from a loose bulb, a bad dimmer, or a failing switch. Persistent or whole-home flicker can mean a loose connection, an overloaded circuit, or a panel/breaker problem that needs a licensed electrician. Try this: tighten or replace the bulb, and use LED bulbs that match the dimmer. If flicker remains, stop using that circuit and schedule service. Castle Electric repairs switches, breakers, panels, wiring, and lighting, and we handle permits and inspections when needed. We serve Newton and nearby areas.

<br/> Updated: 2025-11-06 00:00:00 <br/>

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"Jessica did an extraordinary job troubleshooting what should have been a simple issue turned complicated, and solved it." — Marilyn E.