The plumber on this number
The number on this page rings a plumber based in Millbury, on Howe Avenue.
A private water company
Millbury's water does not come from the town. Aquarion Water Company supplies about 9,050 people here from three wells. In 2025 it bought 28 percent of the water from the City of Worcester.
Aquarion's report does not give a hardness figure. Worcester's water is soft. Ask Aquarion for the hardness of the blend, and flush the tank once a year. If it rumbles, do it twice. How to do it.
The housing
About three-quarters of Millbury homes are single-family and 17 percent are in two- to four-family houses. The median home was built in 1965. Oil is the most common heat, at 38 percent. A third of homes heat with gas.
In a house on oil, the water heater is electric or runs off the boiler.
Gas and rebates
Eversource is the gas company. For a gas smell, leave and call 911, then Eversource at 800-592-2000. National Grid supplies the electricity, so Mass Save's 2026 rebate of $750 on a heat pump water heater applies.