What is the best way to find a natural gas leak?

Author: Ms. Jana Treutel IV  |  Last update: Thursday, November 6, 2025

One of the best ways to detect a gas leak is to use a gas leak detector. Given how dangerous a gas leak can be, installing a fast and dependable leak detector should give you an early warning of trouble.

How to locate a natural gas leak?

In addition to having a distinct smell, natural gas leaks are often visual, causing bubbling water, blowing dirt or dead vegetation. You may also see sinkholes or exposed pipe. It's also possible to hear a hissing sound near a natural gas line or meter.

How do professionals detect gas leaks?

Common leak-test methods are pressure and vacuum decay, tracer gas detectors, and a bubble soap leak detector. Trades and homeowners alike can use a bubble soap leak detector to check piping systems for leaks.

Where do most natural gas leaks occur?

Gas is generally considered to be a safe energy source, but it can quickly become dangerous when there is a gas leak. Most leaks occur at utility pipelines, but leaks occasionally happen in residential areas, including in-home leaks.

Is there a device that can detect gas leaks?

The gas leak alarm sensor is like a superhero that can detect butane, methane, and any odd smells lurking around. And the best part? It talks! It's got voice prompt, so it can be like, "Hey, watch out!

How to detect a gas leak

Is there an app to detect natural gas leak?

LeakFinder App

The display shows real-time gas concentration (ppm) and leak rate (L/h) data during the inspection. When the sensed gas concentration exceeds the alarm level, an audible and visual alarm is triggered. The display shows information about the magnitude of the leak.

How do you pinpoint a gas leak?

1. Know the Signs of Natural Gas Leak
  1. The smell of rotten eggs. In its natural state, natural gas is odorless and colorless. ...
  2. Hissing sounds. ...
  3. Air bubbles outside your home. ...
  4. Dead or dying plants. ...
  5. Higher-than-normal gas usage.

What is the most common cause of a natural gas leak?

Poor Maintenance of Appliances

Gas-powered appliances are frequently in use today. Regular use of an appliance such as a water heater can eventually cause wear-and-tear-related problems, resulting in leaks.

How do you find a natural gas leak outside?

Follow your Senses
  1. You cannot see natural gas.
  2. If there is a vapour, ground frosting, or a significant area of brown vegetation, that could be a sign of a gas leak.
  3. In wet or flooded areas, watch for continuous bubbling.
  4. In drier conditions, watch for dust blowing from holes in the ground.

Will a carbon monoxide detector detect a gas leak?

No, carbon monoxide (CO) alarms cannot detect natural gas leaks. They are designed to detect the presence of carbon monoxide, a poisonous gas formed during incomplete combustion of fuels like oil, gas, propane, and wood.

How much does it cost to check for gas leak?

If you suspect a gas leak, a plumber will first conduct a pressure test. This is a relatively simple process that should cost $75 to $150 and take around 30 minutes to complete. However, some parts of the country will require a lengthier gas line pressure test that will take more than 24 hours and cost up to $500.

What leak detection method is used to detect a gas leak?

Current natural gas leak detection methods

Pellistor/Cat Bead sensors use temperature differences between two beads to detect a natural gas leak; whereas, infrared sensors use infrared light. This is done through infrared light being absorbed in specific wavelengths by dangerous gases.

Are there natural gas detectors?

Natural gas detectors can alert you and your family of odorless and dangerous leaks. Natural gas detectors may not be as common on the list of must haves for the home such as a smoke detector or fire extinguisher, but these devices are worth serious consideration and can detect potentially serious situations.

How does a plumber find a gas leak?

We locate gas leaks by inducing helium into the gas lines and using a sensitive helium “sniffer” to identify where walls may need to be opened if the leak is not found at any exposed section of pipe. Sometimes we can get hits via gaps in the walls around outlets and switches or coming up through the floor upstairs.

What normally helps in detecting escaping gas?

The simplest and cheapest method is the visual detection of gas bubbles or a colored dye. Ultrasonic piezoelectric detectors for detecting the sound of escaping gas are comparatively cheap and increase the sensitivity.

What to do if you think you have a natural gas leak?

For mild leaks, turn pilot lights off, open your windows, and contact your gas company. They'll tell you what to do and whether the gas meter needs to be turned off. If you're noticing symptoms or a strong odor, leave your home immediately. Remember that gas is volatile and can cause an explosion.

How do I find the source of a gas leak?

8 Ways to Detect a Gas Leak
  1. Use a Gas Leak Detector. ...
  2. Use Your Senses. ...
  3. The Soapy Water Test. ...
  4. Air Bubbles in Mud or Puddles. ...
  5. Unhealthy Plants. ...
  6. Physical Symptoms of Natural Gas Poisoning. ...
  7. Higher-Than-Normal Gas Usage. ...
  8. Check the Stove or Range Top.

Is there an app to detect gas leaks?

The Dräger Gas Detection App provides a general overview of gas and vapor measurement technology.

How common are natural gas leaks in homes?

With nearly 70 million American households with natural gas lines in their homes, there is an increased need for awareness regarding gas leak safety. The National Fire Protection Association (NFPA) reports that fire departments respond to around 125,000 residential gas leaks annually.

Can you stay in a house with a gas leak?

Here's what you should DO if you smell gas: DO leave the home, building, or area of the suspected leak. Get to a safe area as quickly as possible. After leaving your home, DO call the 24-hour emergency number for Peoples at 1-800-400-4271, or call your local emergency response number.

Which of the following signs may indicate a natural gas leak?

Here are some signs of a natural gas leak:

An odor like rotten eggs caused by the Mercaptin mixed with the natural gas. Roaring sound like an engine. White vapor that looks like smoke. A hissing or whistling noise.

How to trace a gas leak?

If you need to locate the exact source of a leak, you can perform a soapy water test. Add a teaspoon of washing-up liquid to around 250 millilitres (around 8 fluid ounces) of water. Apply it to where you suspect there's a leak – if bubbles form, it indicates escaping gas.

Do natural gas leaks rise or fall?

Because natural gas is lighter than air, leaking gas will rise. It will move upward through any available space: a stairwell, a crack in the road or even through soft ground. Leaking gas will flow out of open windows and doors naturally, making this an effective method of venting a room or building.

Who can detect a gas leak?

During a gas leak detection test, a trained specialty inspection professional uses a handheld gas leak detector to identify small leaks at their source. Although most gas leaks are small, continuous leaking indoors will still be inhaled by those living within the home.

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