Department of Energy and Environmental Protection Public Utilities Regulatory Authority

New Standard Service Rates for Eversource and United Illuminating (UI) customers, covering the period from January through June 2025, have been announced. Customers are encouraged to check the rate board for up-to-date supply rate options at Energize CT

What To Do If You Smell Natural Gas

Immediate response to gas leaks is essential to ensure that public safety is maintained.  Do not delay.  Do not ignore gas odors. Using the guidelines below can help you deal with any potential gas leaks. Call your gas company or 911 for help.   See: 

Natural gas has no odor. Gas companies add a harmless chemical called mercaptan to give it its distinctive “rotten egg” smell. All natural gas and propane pipeline gas in Connecticut is odorized.
 
If you smell gas near an appliance, it may be just a pilot light that has gone out or a burner valve that is open slightly. If you find this problem and can fix it, the problem may be solved.
 
If you smell gas inside:

Go to a phone that is not near the smell and call your local gas company right away. (If the smell is strong or you are unsure, leave the building and then call.) They will come and make the area safe at no charge to you. While waiting for the gas company field service representative:
  • Keep everyone away from the area of the odor.
  • Don't smoke or strike any matches.
  • Don’t light any candles.
  • Don't flip light switches on or off.
  • Don't use a telephone.
  • Don’t use any electrical equipment or lights that might create a spark in the area of the odor.
  • Don’t use the doorbell.
  • Don’t adjust thermostats or appliance controls.
  • Don’t use elevators.
  • Put out all open flames.
If the odor is strong, leave the premises immediately and tell others to leave. Then, call your local gas company from a neighbor's home.
 
Outside gas odors should be reported right away - do not try to locate the source yourself. If you smell or hear escaping gas:
  • Don’t position or operate vehicles or powered equipment where leaking gas may be present.
If you hear the sound of escaping gas, follow these steps:
  • Telephone your local gas company immediately from a neighbor's phone.
  • Don't go back inside your home or building until your local gas company says it is safe.
  • Keep others away from the area.
Your local gas company provides 24-hour emergency service every day of the year to provide immediate response to emergencies such as natural gas leaks. There is no charge to stop gas leaks.

NEVER turn the gas back on once it has been shut off due to a safety concern. Call your local gas company for assistance.
 
All repairs to gas lines on your premises must be made in accordance with local regulations, by a licensed plumber where required or by your local gas company.
 
Content last updated March 2024