Cohasset Village, the Harbor and North Cohasset
Cohasset became a town of its own in 1770, when it separated from Hingham, and it is part of Norfolk County while Hingham is in Plymouth County. The two towns still share a border, a water system in part and a long run of Route 3A. Route 228 runs along the Hingham line before it crosses the Weir River toward Hull.
Cohasset at a glance
- Getting hereCohasset borders Hingham on the southeast, reached on Route 3A.
- Around-the-clock dispatchEmergency dispatch is available around the clock for Cohasset Village, the Harbor area and North Cohasset.
- Main roadsRoute 3A and Route 228 are the two arteries we use to reach most addresses.
- WaterNorth Cohasset is served by the Weir River Water System, while the rest of town has its own water department.
- Primary ZIP02025 covers the whole town.
That mix of water systems matters on a service call. A homeowner in North Cohasset may have a different utility, a different meter and a different shutoff location than a neighbor in the Village. We ask which system you are on at the start of the call, so the plumber knows where to find the curb stop.
What older Cohasset houses ask of their plumbing
Cohasset has coastal houses of many ages near the Harbor, around the Common and on the roads that run toward the water. Older homes often have a mix of copper, galvanized steel and cast iron that has been added to over the decades. Salt air also corrodes exposed fittings, boiler jackets and water heater bases faster than it does inland.
When we are called for a leak in one of these houses, the first question is how much of the system has been replaced. A single leaking joint is a repair. Several leaks across a house point to repiping, and we say so after we have looked. For a hidden leak, see leak detection.
Water in Cohasset: reservoir, wells and the Weir River line
Cohasset's own water comes from town sources, and the Aaron River Reservoir is a backup supply. The reservoir lies mostly in Cohasset, with small stretches in Hingham and Scituate, on the eastern side of Wompatuck State Park. It is classed as a Class A water supply source, so ask your water department for its latest quality report if you have questions about taste or treatment.
Some Cohasset properties also use private wells, and the town's Board of Public Health has surveyed them. A private well has no utility behind it, so water pressure, filters and pump failures fall to the homeowner. A water test is the first step before choosing a tankless heater or a filtration system.
Before we arrive: if you have a burst pipe or active leak
- 1
Shut off the main
Close the main valve, usually near the meter or where the line enters the basement.
- 2
Kill power to wet areas
Switch off breakers for wet rooms if you can reach the panel dry. Stay out of standing water.
- 3
Clear the area
Lift belongings off the floor and move electronics, rugs and boxes away from the water.
- 4
Call the 24/7 line
Call and tell us the town, the fixture and whether the water has stopped.
Services Cohasset homeowners call about most
Cohasset calls tend to follow the age and exposure of the houses. Water heater failures in damp basements, drain backups in older lines and boiler leaks in winter are common. Our water heater replacement and boiler repair teams carry the parts for the usual failures.
When a toilet or main drain backs up, a plumber starts with drain cleaning and follow up with a camera if the clog returns. Hingham's Weir River pump station takes flows from Cohasset and Hull, so a backup in one of those towns can point to a shared line. We note that in the report.
Cohasset ZIP, roads and dispatch routes
All of Cohasset shares ZIP code 02025. We reach Cohasset Village and the Harbor via Route 3A, and Beechwood and the area near Wompatuck State Park via the back roads. If you are on a narrow street near the water, tell us about parking and access so the plumber can plan for it.
Cohasset's neighbors on our map include Hingham, Hull across the Weir River and Norwell to the south. A water emergency in any of them gets the same answer. Close the main valve and call our 24/7 line.
Cohasset plumbing questions
Cohasset is about five miles from our Hingham base on Route 3A, and a plumber can often arrive within a short drive of dispatch. Timing varies with traffic and the call queue, and we do not promise an arrival time.
Yes. Our line is staffed 24/7, including nights, weekends and holidays. For active leaks, close the main valve first, then call.
Yes. We dispatch to both. Tell us which part of town you are in and whether you are on the town system or the Weir River Water System.
We can still help with the plumbing side. Well pump and treatment equipment may need a well contractor, and we tell you what falls outside our scope.
We repair the plumbing and hydronic side of a boiler, including leaks, valves and pumps. See the boiler repair page for what we handle and what needs a burner technician.
Yes. Cohasset is covered by a single ZIP code, 02025, from Cohasset Village and the Harbor down Route 3A to North Cohasset and the roads near Beechwood. If your address is just over the line in Hingham, ZIP 02043, we cover that too.