The light department's rebate
Marblehead has its own electric company. For 2026 the Marblehead Municipal Light Department offers $500 on an ENERGY STAR heat pump water heater, capped at half the purchase price, for buildings with one to four units.
Three-quarters of Marblehead homes heat with gas. For those, Mass Save's $750 rebate may apply through National Grid.
Old houses, soft water
The median home in Marblehead was built in 1944, and about 81 percent are single-family. The water is MWRA water, about one grain per gallon, so scale builds slowly. A yearly flush is enough.
Gas
National Grid is the gas company. For a gas smell, leave and call 911, then National Grid at 800-233-5325.
Tenants
The Marblehead Board of Health is at 781-631-0212.