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Excess Flow Valve (EFV) Installation

You may request installation of an excess flow valve (EFV), a safety device that slows the flow of natural gas in the event of a service line break. An EFV is not required for normal operation of your gas line. In fact, you may already have an EFV installed.

There is a charge for this service. Certain conditions must exist for this installation. 

For more information, please email nycgss@nationalgrid.com or call 1-877-MyNGrid (877-696-4743). 

Avoid Scams

Any contractor doing work for National Grid is required to carry ID. If someone requesting entry into your home or place of business does not show an ID card, don’t let that person in and call your local law enforcement.