At a Groton address, one question comes before any shutoff or filter can be quoted: town water or well? The Groton Water Department pumps four groundwater wells at Baddacook Pond and Whitney Pond to 1,892 accounts in the denser center; houses in West Groton, along Chicopee Row and around Lost Lake may still draw from private wells. That line is moving: the Water System Expansion Project, a PFAS response centered on Groton-Dunstable Regional High School, is laying main along Raddin Road and Hawtree Way and reaches Reedy Meadow Road in its second phase. A meter and a pressure tank put the shutoff in different places, and the department’s 2025 Annual Water Quality Report describes only the first.
Groton treats none of its own wastewater. The Groton Center Sewer District sends its flow to Pepperell’s plant under an intermunicipal agreement adopted in 1987, the Four Corners district at the Route 119/225 junction drains to Ayer, and every house outside those two districts is on a private Title 5 system. On septic, drain venting, fixture flow and water habits carry more weight than on a sewer line, so we check the district line first. The tank and leach field are a septic contractor’s; we do not repair septic systems or clear clogs.
Natural gas in Groton follows the village centers and the Route 119, 40, 225 and 111 corridors, so most outlying roads heat with oil or propane. Westford, Littleton, Chelmsford and Acton have widespread gas; Groton and Tyngsborough do not. Boiler and hydronic work here is mostly oil- and propane-fired — the core of our heating line — and replacing a water heater on a road without a main is a fuel decision before it is an equipment decision. Electricity comes from GELD, a municipal utility with its own rebate program, and we confirm any incentive before it enters a price.
Incorporated in 1655, Groton keeps 1700s and 1800s houses around Groton Common that were re-plumbed across three centuries, so cast iron, galvanized steel, copper and PEX can share one cellar. Postwar ranches and capes form the middle layer, the 1980s–2000s large-lot homes are entering the water-heater window, and post-2000 estates round it out. Jeneral Plumbing reaches Groton from Westford, MA in about 13 minutes on Route 40 or Route 225 — a drive time, never a promised arrival — and serves it alongside Littleton, Ayer, Pepperell and Dunstable in Middlesex County, six of the 26 towns on our service-area list.
