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Excess Flow Valves

Ameren customers can request to have an excess flow valve installed on the natural gas service line that serves their home or small business. Excess flow valves are an additional safety feature designed to shut off the flow of natural gas decreasing the possibility of fire, explosion, personal injury and property damage if the natural gas service line is significantly damaged.

Generally, the cost to the customer to have Ameren install an excess flow valve ranges from $800 to $1,500.The process of installing the excess flow valve requires digging to expose the gas service line where it connects to the natural gas main. While the work typically takes no more than one day, restoration of the excavation site may take longer.

Not every natural gas service line can accommodate an excess flow valve. We will inform you if for some reason an excess flow valve cannot be installed.

For additional information, or to schedule an appointment, please contact Construction Services to speak with a representative.

Ameren Illinois Construction Services

  • Call 888.659.4540
  • Email IllinoisConstruction@ameren.com

Ameren Missouri Construction Services

  • Call 866.992.6619
  • Email ConstructionHotline@ameren.com
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