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Unitil Welcomes New Hampshire Water Customers

On June 30, 2026, Unitil completed its purchase of the New Hampshire operations of Aquarion, a water utility in New England.

Unitil is a public utility holding company currently providing natural gas and electricity to customers in New Hampshire, Maine, and Massachusetts. Like electricity and natural gas services, water is an essential product and must be delivered safely, reliably, and affordably.  We are excited to bring Unitil’s local management, commitment to safety, and top-tier customer service to the eight New Hampshire communities served by Aquarion. As part of this acquisition, Unitil and Aquarion Water Authority have agreed to a five-year transition period for operations to ensure a collaborative, seamless transition for customers.

We look forward to serving you.

No Immediate Changes

We are committed to full continuity of service for Aquarion New Hampshire customers, and there will be a five-year transition period for operations to ensure a seamless transition. Any existing system upgrades or projects will progress as scheduled.

The following will remain the same for Aquarion New Hampshire customers: 

Customers will receive direct notifications about future changes to customer account numbers, or other updates involving the transition.

Providing Water Service

A Natural Fit for Unitil

As part of this acquisition, Aquarion has committed to working closely with and mentoring our team over an extended period. Combining the deep expertise of the water employees and Unitil’s strong culture of safety and reliability, we are well-positioned to respond swiftly and effectively to any emergencies that may arise, just as we do with our electric and natural gas services.

About Unitil

We are an investor-owned public utility committed to delivering essential services to our customers safely and reliably.

Unitil in the Community

As your neighbor, we invest in the quality-of-life issues that are important to the communities we serve.

Safety puts people first

Focused on the system safety

Our comprehensive training programs give our employees the certifications and experiences needed to handle any situation. We provide emergency services 24 hours a day and are available to answer any questions about the safety of your service.

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Commitment to Sustainability

At the core of Unitil's mission

True sustainability embraces a culture of innovation and collaboration integrated with strategy and risk management and guided by solid corporate governance.

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