ElectricNatural GasWaterSewer

To view utility service request forms, click here.

Information for Developers/Contractors


Converting to natural gas is easy and economical!
NPU has a comprehensive program that combines financial incentives with discounts on conversion costs to make the decision to switch to natural gas the logical choice. For detailed program information, call NPU at 860-887-2555, email or click here.

Customer-owned underground gas lines: some of the underground natural gas piping on personal property belongs to the property owner. Customer-owned piping is defined as any buried gas line that extends away from the gas meter. Typically, customer-owned gas piping is used to supply heat and hot water to another structure, like a detached garage, but it can also be used to heat swimming pools and for cooking on a gas grill. If you have this type of gas line on your property, it is your responsibility to initiate any inspection and necessary repair or replacement of customer-owned gas piping through a qualified professional, such as a licensed heating/cooling contractor or plumber. Buried gas piping should be inspected periodically for leaks and for corrosion if the pipe is metal. If a gas leak is detected, it may be necessary to interrupt your gas service temporarily until repairs are made.

Remember to contact call before you dig (by dialing 811), a free service. It is important that you know the exact location of all buried utility lines before performing any excavation project. When excavating near buried gas piping, all excavations must be done by hand.
If you suspect a problem with any natural gas lines, call NPU’s gas emergency line at 860-887-7207.

Excess flow valve customer notification

As of April 14, 2017, a new federal regulation requires that all natural gas utilities notify customers about the availability of an optional natural gas shut-off device called an excess flow valve (EFV). For more information, click here or email NPU at

For downloadable residential water service installation drawings, click here.

Click Here to apply for a permit for a new water service connection or repair to an existing water service.


Click Here for more information about the NPU Water Main Break on September 27, 2023

The Norwich Public Utilities (NPU) received a Drinking Water State Revolving Fund (DWSRF) Loan to implement Advanced Metering Infrastructure Water Meter Replacement Program in the amount of $1,921,442.56. The DWSRF program is administered by the Connecticut Department of Public Health (DPH) with joint funding from the U.S. Environmental Protection Agency and the State of Connecticut. For more information on the DWSRF, please visit the DPH’s DWSRF website. This project comprises the removal and replacement of NPU’s customers’ water meters and the repair of associated service lines. This is a system-wide water meters replacement project that will be implemented in the towns being served by NPU. The project is essential to improve the reliability and accuracy of the metered water use, thereby improving the accuracy of accounted for and non-revenue water for community residents and businesses in the areas served by NPU. DWSRF programs operate around the country to provide states and communities with a low-cost financing alternative to maintain and improve the infrastructure that protects our valuable public drinking water resources nationwide. For more information on the DWSRF, please visit the DPH’s DWSRF website.

To view downloadable utility installation drawings, click here.