Multiple Lights Flickering in House: What Could be the Cause?

multiple lights flickering in house

Do you have multiple lights flickering in house? If so, it could be a sign that something is wrong. This blog post will discuss the possible causes of multiple lights flickering in your house and what you can do to fix it. We will also provide some tips on preventing this from happening.

Multiple Flickering Lights: Common Causes

There are multiple reasons why your lights may be flickering. Here are eight of the most common causes:

1. Flickering Lights from an Overloaded Circuit

One of the most common reasons for flickering lights is an overloaded circuit. It happens when you have too many devices plugged into one circuit. When this happens, the electrical current becomes overloaded and can cause the lights to flicker.

2. Fire Hazards from Loose Wiring

Another common cause of flickering lights is loose wiring. When wires are not properly connected, they can create a fire hazard. If you see flickering lights and smell burning plastic, it is important to call an electrician immediately. It is a serious problem that should not be ignored.

3. Fluctuations in Power

Another reason your lights may be flickering is due to fluctuations in power. It can happen for various reasons, including storms, power outages, and equipment failures. If you notice that your lights are flickering when the power goes out or comes back on, this is most likely the cause.

4. Wrong Bulb Type

If you have recently replaced a light bulb and it is flickering, you may be using the wrong type of bulb. Different bulbs require different amounts of power, so using the wrong type can cause flickering. Check the wattage requirement for your light fixtures before purchasing new bulbs.

5. Dimmer Switches

Dimmer switches are common in homes with multiple lights. If one of the lights on your dimmer switch is flickering, it may be due to a loose connection. You can try tightening the screws on the dimmer switch or replacing the switch altogether.

6. Badly Worn Out Bulbs

Another reason your light may be flickering because the bulb has become worn out. Over time, lightbulbs will slowly lose their intensity and eventually need to be replaced. If you notice that one of your lightbulbs is flickering more than others, it’s probably time to replace it.

7. Faulty Light Fixtures

Sometimes, the reason your light is flickering has nothing to do with the bulb or switch. If you have multiple lights flickering in the same room, there may be a problem with the light fixture itself. Faulty wiring or a loose connection can cause lights to flicker. If you suspect that your light fixture is the problem, call an electrician to have it checked out.

8. Voltage Changes

Another possible reason for flickering lights is voltage fluctuation. It can happen if your home’s electrical system is overloaded or the utility company experiences a power surge. If you notice that all the lights in your house are flickering, it’s probably due to a voltage change. You should check your circuit breaker to see if any circuits have been tripped. If not, you may need to call your power company to investigate the problem further.


It’s important to get to the bottom of this flickering light mystery as soon as possible. While it may be nothing, it could also signify that something is wrong with your electrical system. If you’re seeing more than one light flicker, we recommend calling an electrician to come for emergency electrical repairing. Estevez Electric will be able to diagnose the issue and help you get it fixed before it turns into a bigger problem.