Natural Gas Pipeline Safety | National Grid
Welcome! You've landed on a Metro NY  page, but we're not sure if this is right. If you confirm where you use our services most, we can tailor our site to your needs.   | Note: If you've told us more than once, your browser may be blocking cookies.   [?]
National Grid
Metro NY Change Location

Did you know natural gas pipelines are the safest energy transportation system in the United States? We ask for your help in keeping them safe.

Which Pipes are Your Responsiblity?

It is your responsibility to maintain and let us know about any gas lines that begin at the outlet of the gas meter and extend either above or below ground on your property. Buried gas lines need special attention because they can corrode or leak if not properly maintained. Here are a few examples:

  • Outside gas lighting
  • Gas heaters for pool or hot tub
  • Natural gas barbecue
  • Gas-fired generators
  • Detached building with gas appliance(s)

To properly care for a buried pipe, we recommend you periodically hire a professional plumbing/heating contractor or leak survey and corrosion expert.  If unsafe conditions are found, you should have the pipeline repaired immediately.

National Grid Meter Inspections

National Grid is now required by the New York State Public Service Commission to preform periodic leak surveys and corrosion inspections on all meters – even those located indoors. These inspections are performed by Premier, a licensed National Grid contractor, at no cost to our customers. We will reach out to you to schedule the inspection, or you can schedule a time that works best for you by calling Premier at

Sewer Pipe Blockage


Gas leaks can occur when equipment is used to unclog sewer pipes, so please always have a professional inspection of sewage blockages before attempting to clear them. Why? Natural gas utilities across the country have discovered locations where natural gas pipes or other utilities such as communications and electric wires were accidently installed through sewer pipes, something known as a “cross bore.” Cross bores aren’t a safety hazard on their own, but damage caused by unclogging sewer pipes could led to fires or explosions. Learn more about cross bore safety.

Excess Flow Valve Notification

Did you know you can request installation of an Excess Flow Valve (EFV) on your existing gas service line under certain circumstances?  For more information, call National Grid at 781-907-2958 or email.

Call Before You Dig

Before beginning any excavation activity, call 811.

Suspect a Leak?

If you smell natural gas or see a white cloud, mist, fog, or bubbles in standing water, or any other signs of a gas leak, immediately report the situation to 911 or 1-718-643-4050.