Gas leaks can happen for various reasons, including corrosion in old pipes, shifting soil, or poor installation by unqualified contractors. Because natural gas is combustible and can displace oxygen, identifying a leak early is critical.

If you notice any of the following signs, you likely need a professional inspection:

• The Smell of Rotten Eggs: Natural gas is odorless, so utility companies add a chemical called mercaptan to it. This creates a distinct, sulfur-like odor that resembles rotten eggs. If you smell this, you have a leak.
• Hissing or Whistling Sounds: A significant puncture or crack in a gas line will often produce a hissing noise as the pressurized gas escapes. This usually indicates a substantial leak near the appliance or pipe.
• Dead or Dying Vegetation: Underground gas lines run through your yard. If you notice a patch of grass or shrubs turning brown and dying directly above a gas line—while the rest of your lawn is green—it could indicate a subterranean leak.
• Unexplained High Gas Bills: Have your utility costs spiked without a change in your usage habits? A hidden leak in your walls or underground could be wasting fuel and costing you money.
• Appliances Not Working Properly: Your gas appliances need a specific flow of gas to function. If your stove burner flame is orange or yellow instead of crisp blue, or if your pilot light keeps going out, you may have a flow issue or a blockage in the line.
• Physical Symptoms: Exposure to a gas leak can cause dizziness, nausea, fatigue, or headaches. If your family feels ill while at home but better when they leave, check your gas lines immediately.