Plumbers in Quincy, MA

Quincy's housing and the plumbing it brings

Census figures put the median Quincy home's year built at 1958, but that average hides two very different cities. More than a third of Quincy's housing units (37%) were built in 1939 or earlier, much of it the two- and three-family houses of Wollaston, Germantown, Quincy Point and North Quincy that grew up around the old rail commuter stops. At the other end, almost a quarter of units are in buildings of 50 or more apartments, from Marina Bay's high-rises to the large complexes near the Red Line.

In the older houses the usual problems are age-related: galvanized steel supply pipe that has narrowed and starts to leak at the joints, cast-iron drain stacks and building sewers that scale up or crack, and shutoff valves that haven't been turned in decades. In multi-unit buildings the questions are about responsibility. In a condo, find out from your association documents which pipes are yours and which are common elements before a plumber starts work, especially for stacks and the main drain.

Your sewer line: what Quincy says you own

Quincy is unusually clear about sewer laterals. For residential buildings of four units or fewer, the owner is responsible for maintaining and repairing the sewer line from the foundation to the edge of the sidewalk. The city's Water, Sewer & Drain Division will clean that line once per fiscal year at no charge and charges $375 for each additional cleaning that year; on request it will also repair or replace a lateral and bill the owner for labor and materials.

So if your main line clogs and it isn't an emergency, it's worth calling the DPW about the free annual cleaning before you pay anyone. If sewage is coming up in the basement at night, call a plumber; a private camera inspection is also the way to find out whether a recurring blockage is roots, a sag or a break, which the free cleaning won't tell you.

One more Quincy rule matters to plumbers and homeowners: running a sump pump or roof downspouts into the sewer counts as unauthorized sewer use, with fines of $500 for a first offense, $1,000 for a second and $2,500 for a third. If a plumber suggests tying a sump pump into the house drain, say no.

Flooding and sewer backups near the shore

With roughly 12 miles of seawall and some of the highest numbers of repeat flood-insurance claims in Massachusetts, Quincy's coastal neighborhoods deal with water that comes in from outside as well as from the pipes. The city's own flood study names Adams Shore and Houghs Neck as home to most repetitive-loss properties, with Marina Bay, Merrymount near Blacks Creek and the areas along Town River also at high risk; the three nor'easters of March 2018 caused some of the worst flooding the city had seen.

For basements in those areas, the city's advice is practical plumbing: install a sewer backup valve, a floor drain plug or standpipe, or an overhead sewer so storm surges can't push sewage back into the house, and if a flood destroys the boiler, raise its replacement above flood level. The Engineering Department will visit a property to talk through flood mitigation if you ask in writing to the City Engineer. A plumber can quote the backflow and drain work.

Lead service lines and old water mains

Quincy completed an inventory of every water service line in October 2024 and wrote to the owners of properties with known lead lines or lines of unknown material that November. The inventory is public on the city's GIS map. The city replaced 73 lead services in 2024 alongside its water main work and has set a goal of removing the remaining identified lead services within ten years. If you got a letter, our lead pipes guide explains what a plumber looks for and what replacing the private side involves.

The public mains are old too: the city estimates that about 22% of its water pipes are unlined cast iron more than 85 years old, and it replaced 6.4 miles of main in 2024. Main work on your street can stir up sediment and leave water briefly discolored; running the cold tap usually clears it, but if your pressure stays low afterwards, a clogged aerator, strainer or old galvanized pipe inside the house is the likely cause.