National Grid on Long Island (Natural Gas Service)

National Grid is the main investor-owned natural gas utility serving much of Long Island. Where gas service is available, the company supplies fuel for home heating, cooking, hot water, and many commercial and industrial uses. Availability is not universal in every community, however, and some parts of Suffolk County still rely more heavily on oil heat or propane. If you are moving, renovating, or planning a fuel conversion, it is best to check address-specific availability before making plans.

Unlike electricity, which is provided by LIPA and operated by PSEG Long Island, gas service in National Grid territory is handled directly by National Grid. For current customer-service options, move-in or move-out requests, and safety information, use National Grid’s official New York website.

Service Area

On Long Island, National Grid’s gas network generally serves:

• Nassau County – Much of the county where gas mains are in place.
• Suffolk County – Many western and central communities, with service generally becoming less common farther east and in lower-density areas.
• Brooklyn, Queens, and Staten Island – National Grid also serves major gas territory elsewhere in downstate New York City.

Because gas infrastructure is location-specific, service to a particular home, apartment building, or business depends on nearby mains, local conditions, and current utility policies. New connections and expansion projects can also be subject to changing regulatory and infrastructure constraints.

Operations and Infrastructure

National Grid operates and maintains a large regional system that includes:

• Transmission and distribution pipelines that move natural gas to neighborhoods, homes, and businesses.
• Pressure-regulation, metering, and control equipment that helps manage safe delivery.
• Emergency response teams available around the clock for gas-leak and system-safety incidents.
• System-upgrade and pipe-replacement projects intended to improve reliability and reduce safety risks.

Safety and Customer Service

Natural gas is widely used, but leaks and damaged lines can be dangerous. If you smell gas, leave the area right away, avoid flames and electrical switches, and follow National Grid’s current emergency instructions. In an immediate emergency, call 911.

• 24/7 emergency reporting for suspected gas odors, leaks, and other urgent safety concerns.
• Inspections and replacement programs aimed at maintaining and modernizing older infrastructure.
• Dig-safety outreach reminding residents and contractors to call 811 before digging so underground utilities can be marked.

For billing, account management, service turn-ons or turn-offs, and move requests, National Grid offers online and phone support. Specific contact methods, office availability, and turnaround times may change, so check the official site before visiting or scheduling work.

Clean Energy and the Future

National Grid’s gas system is also part of New York’s broader energy transition. The company has been involved in system-modernization and emissions-reduction efforts while state policy continues to encourage lower-carbon buildings and more efficient energy use.

• Reducing methane leaks and replacing aging infrastructure.
• Evaluating lower-carbon fuel pathways, such as renewable natural gas, where permitted and practical.
• Operating under state climate and utility policy goals, including those connected to the Climate Leadership and Community Protection Act.

Oversight and Regulation

National Grid’s New York gas operations are regulated by the New York State Public Service Commission, with oversight administered through the state Department of Public Service. That framework covers rates, safety standards, service obligations, and many infrastructure investments. Learn more at the New York State Department of Public Service.

Locations on Long Island

Local Role

For households and businesses that use natural gas, National Grid remains an important part of daily life on Long Island. Its network supports home heating, hot water, cooking, restaurants, commercial properties, and other energy needs across much of the region.

This page is especially useful for new residents, second-home owners, landlords, and business operators who may need to understand:

• Billing and account questions, including move-ins, move-outs, and available customer-service tools.
• Emergency procedures if you smell gas or suspect a leak.
• Address-specific service availability when buying, renting, building, or converting a property.
• Long-term energy planning as utility policy, building rules, and lower-carbon technologies continue to evolve.

Official website: National Grid New York. Service details, connection policies, program availability, and contact information may change, so checking ahead is always recommended.