Why Do My Lights Flicker? Common Electrical Problems and Fixes

Have you ever sat at home, noticed your lights flicker, and thought, “Why do my lights flicker?” You’re not alone. Flickering lights can feel unsettling, especially when they happen often or suddenly. While sometimes it’s a minor issue, flickering lights can also be an early warning sign of a more serious electrical problem. Let’s break down the most common causes of flickering lights, what they mean, and how to fix them safely.

Loose Bulbs and Fixtures

One of the simplest causes of flickering lights is a loose bulb or fixture. If a bulb isn’t screwed in tightly, it may lose contact and flicker. Similarly, worn-out or damaged fixtures can cause poor connections.
Quick fix: Make sure the bulb is tightened securely. If the problem persists, the fixture may need professional repair or replacement.

Faulty Light Switches

Another easy-to-overlook issue is the switch itself. A worn-out switch may fail to maintain proper contact with the light fixture, causing intermittent flickering.
Tip: If flickering happens only when you use a specific switch, it’s time to have it inspected.

Overloaded Circuits

Do your lights flicker when you run an appliance like a microwave or hairdryer? That’s often a sign of an overloaded circuit. Large appliances can draw a surge of power, causing your lights to dim or flicker.
Solution: A licensed electrician can evaluate your home’s circuits and recommend upgrades to safely handle modern electrical loads.

Faulty Wiring Signs

Flickering lights can sometimes be a red flag for faulty wiring—a serious safety hazard. Damaged or loose wires increase the risk of electrical fires. If you notice burning smells, buzzing sounds, or frequent breaker trips along with flickering lights, call an electrician immediately.

Utility Service Issues

Sometimes the problem isn’t inside your home at all. Issues with your utility provider’s equipment or service lines can cause lights to flicker. If multiple neighbors experience the same problem, it’s worth contacting your power company.

When to Call the Professionals

Occasional flickering may not be cause for concern, but frequent or unexplained flickering should never be ignored. Professional diagnosis ensures that the underlying cause—whether it’s faulty wiring, overloaded circuits, or another hidden issue—is handled safely.

At Sermon Service & Electric, our team of licensed electricians in Pocatello and experts in electrical repair in Idaho Falls have the tools and training to keep your home safe and your lights shining steadily.

Final Thoughts

Flickering lights might seem like a small annoyance, but they’re often your home’s way of signaling an underlying electrical issue. Whether it’s as simple as a loose bulb or as urgent as faulty wiring, the safest approach is to get it checked out promptly. We’re here to help you restore peace of mind and keep your home powered safely.