Since 2017, Blue Bear Plumbing provides quality tankless water heaters in Hanover, MA, backed by the integrity of a BBB A+ rated plumbing contractor. Tankless water heaters can provide a constant flow of hot water without the wait. Are you thinking about replacing your existing storage-tank water heater? Trust Blue Bear Plumbing for an honest evaluation and estimate for a new tankless water heater installation. Our technicians arrive with a fully stocked van and are ready to get to work right away. You’ll always receive a clear explanation of services as well as an upfront estimate.