3 Reasons Why Your Light Fixture Is Suddenly Leaking

If you’re dodging drops of water falling from your light fixture, it’s time to investigate the problem

Leaky pipe in the ceiling
Photo: PixelsEffect / E+ / Getty Images
Leaky pipe in the ceiling
Photo: PixelsEffect / E+ / Getty Images
Highlights
  • There are three primary causes for water leaking through a light fixture.

  • Once you spot a leaking light fixture, turn your electricity off—via the circuit breaker or main power supply—until it’s fixed.

  • Call a plumber or other qualified professional immediately.

  • If the problem is a damaged roof, the repairs will cost an average of $1,100.

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Picture this: It’s a bright, beautiful day, and you walk into the bathroom to brush your teeth and wash your face. You flip on the light switch, and instead of light, you’re suddenly facing a stream of water that’s falling from your overhead light fixture. Since electricity and water never mix, you should jump into action to diagnose and fix the problem.

There are several possibilities for why water is leaking through your light fixture, but there are often three main culprits that cause this issue.

Safety Warning

Using any electrical fixture that has been in contact with water is highly dangerous. Water is a conductor of electricity, capable of transferring an electrical current to anything it touches, including you. Even touching a light switch can lead to electrocution. To ensure safety, immediately cut off the electricity at your breaker box, preventing the flow of electricity throughout your home.

If you don’t know which circuit breaker controls the leaking light, you can turn off your main power supply on the main switch. In addition, if you suspect that the leak is coming from a damaged pipe, you should turn off the water supply to prevent additional water from pooling. Clean up any accumulated water. Make sure to call a local professional plumber as soon as possible.

1. Damaged Roof

Unfortunately, roof damage can happen at any time. Although it’s our home’s first line of defense against Mother Nature, roofs can be impaired by several causes, such as severe weather, an aging structure, or even pests.

Severe Weather

When heavy weather occurs, it can hit your roof hard. High winds and excess rain or snow can damage the roof’s structural integrity.

If the roof can’t handle the impact of severe weather, rain or snow will seep into the roof and enter the attic. Once the water is in the attic, it will flow down to the lower floors through any crack or opening. So, if there are any light fixtures connected to the attic, then there’s a good chance this is the cause of your unexpected rain shower.

Aging Structure

Even the best water damage prevention tips may not be enough to stop a problem from happening if you live in an older home. Over time, the roof and the materials connected to it will start to age. A roof will last anywhere from 20 to 175 years, depending on the roofing material. Common parts of the roof that typically age fastest include shingles, flashing, and rafters. Once your roof hits the upper limits of its life span, it’ll start to deteriorate, providing more opportunities for water to sneak in and flow through your light fixtures.

Pests and Wild Animals

Pests and wild animals can cause damage to your roof when they’re looking for food or shelter. Wild animals—such as squirrels, birds, and other rodents—may pick at and pull apart the roofing material to use it for nests or burrows. In comparison, pests like termites can use the wood frame of your roof as their new favorite restaurant. Once condensation or rainfall comes through the holes in the roof created by pests or animals, it poses the same risk as severe weather.

2. Broken or Damaged Pipes

Another likely suspect in the mystery of water leaking through your light fixtures is a broken or damaged pipe. If the leaky light fixture is in the bathroom or the kitchen, an impaired pipe is likely to blame because these rooms typically have the most amount of water running through them. You may also notice this issue if the water is leaking into a room underneath a bathroom or laundry room.

You’ll need to hire a local plumbing repair service to address this issue, as you never want to take risks when mixing electricity and water. For the time being, you should not turn on the light where the water is leaking from to avoid the risk of fire. If there’s a steady stream coming from the light fixture, flip off the breaker to the light.

3. Leaky Ducts

Damaged pipe with leaking water
Photo: LIGHTFIELD STUDIOS / Adobe Stock

If you live in a two-story home or a condo, there’s a chance that the bathroom on the floor above you isn’t draining the water correctly. Occasionally, excess water on the bathroom floor can slip into floor vents and, if there are any holes in the ducts, cause the water to start leaking through a light fixture. This leak could come from a bathtub, sink, or even a pipe in the wall.

How to Handle a Water Leak in a Light Fixture

“Water leaking from a light fixture is a serious problem—if you experience this, you should address it immediately,” warns Handyperson Andrew Kilborn.

Water leaking from a light fixture is a major red flag that requires immediate professional attention. After you shut off the electricity to the affected area, you should call a local plumber stat. After getting off the phone, you’ll want to follow a few water damage repair tips to save your furniture and flooring.

If the problem is caused by the roof rather than the pipes, you should call a local roofing repair company. On average, the cost to repair a roof is around $1,100, but this final price tag will depend on the severity of the roof damage and the complicity of the repair.

On the off chance that it’s a vent problem, you may need to talk with whoever uses the bathroom upstairs. If they swear there’s no problem, then you’ll need to hire a duct repair professional.

Questions to Ask a Pro

With water leaking from light fixtures indicating serious trouble involving your home's infrastructure, you'll want to contact a professional to take a look as soon as possible. However, you don't want to rush to find the right pro. Here's a rundown of important questions to ask when you place a call:

  • Is water dripping from the light fixture a problem you can fix?

  • Can you work with my homeowners insurance to get the repairs done?

  • Do you charge an emergency fee to come out to my house right away?

  • Is your work backed by a warranty?

  • Is your company licensed, bonded, and insured?

  • Do you have the proper licensing and certification to assess water leaking from light fixtures?

Frequently Asked Questions

Yes, a water leak poses a major fire risk at your home because water is a conductor of electricity. Water that comes into contact with sparks or electrical wires can instantly ignite flammable materials. Additionally, any type of exposure to water can cause wires and other electrical components within your home to corrode. When assessing categories of water damage, it's important to know that even a small amount of moisture near wiring could cause sparks that lead to a fire.

Yes, any amount of water leaking from a ceiling should be considered an emergency. You should strongly consider calling an emergency plumber as soon as you notice water leaking from a light fixture. While waiting for a plumber to arrive, you should do your best to contain the water by placing buckets beneath the leak, wiping up water with towels, and moving furniture out of the leak path.

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