Serving Cambridge, MA
Plumber in Cambridge, MA
Cambridge Plumbers Who Know the City's Own Water System and Its Housing Stock
Cod Plumbing serves Cambridge homeowners, landlords, and property managers with fast, professional Cambridge plumbing service. Cambridge runs its own independent water system rather than buying MWRA distribution service like most of Greater Boston, and that difference actually matters when we are diagnosing a water quality complaint.
Plumber in Cambridge
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Plumbing Services in Cambridge, MA
Cambridge packed 58,170 housing units into a little over six square miles, and 55 percent of them were built before 1939. The city also draws its own water rather than buying MWRA distribution service, which means a Cambridge specific water quality event does not always show up in regional headlines. We treat Cambridge as its own water system because, legally and physically, it is one.
Call us at 857-426-3836 or schedule online to book your Cambridge plumbing service today. We offer same day appointments and a two hour guaranteed arrival window.
Services We Provide in Cambridge
Local Knowledge
Cambridge Housing Stock and Plumbing History
Cambridge's median construction year is 1950, but that number hides a sharp split. About 55 percent of the city's 58,170 housing units were built before 1939, concentrated in triple decker heavy streets like Cambridge Terrace in Porter Square and the dense rows of Wellington Harrington between Inman Square and Kendall Square. East Cambridge mixes 19th century row houses with triple deckers built for the candy and soap factory workforce that once filled the neighborhood, some more than 120 years old today. Harvard Square and the surrounding Brattle Street area hold some of Cambridge's oldest residential structures, several dating to the 18th and early 19th centuries, alongside larger single family and two family homes converted into apartments over the decades. At the other end of the timeline, Kendall Square has added dramatic new construction since roughly 2010, bringing modern copper and PEX plumbing into high rise towers just blocks from triple deckers that have never had a full repipe. Two buildings on the same Cambridge block can carry plumbing systems separated by more than a century of construction practice.
Water Supply
Water Quality and Supply in Cambridge
Cambridge is not a standard MWRA distribution customer. The city operates its own water system, drawing from the Hobbs Brook, Stony Brook, and Fresh Pond Reservoirs and treating between 12 and 16 million gallons a day at the Walter J. Sullivan Water Treatment Facility on Fresh Pond. Cambridge can lean on MWRA water in an emergency, which is exactly what happened in August of 2022 when PFAS6 compounds were detected at 17.1 parts per trillion, above the state standard. The city switched to MWRA water for about three months, installed new granular activated carbon filters at the Sullivan facility, and returned to its own supply on November 19, 2022. On lead, Cambridge has been ahead of most of the region for decades. The Cambridge Water Department has proactively removed approximately 80 percent of the city's lead service lines since 1996, with continued replacement work funded in part through MWRA board approved assistance. Because Cambridge draws from a surface watershed rather than the deep reservoir system feeding most of Greater Boston, property owners here should reference Cambridge's own annual water quality report rather than assuming MWRA regional data applies directly.
What We See Most
Common Plumbing Issues in Cambridge
Based on years of plumbing work throughout Cambridge, these are the issues we diagnose and repair most often in the neighborhood.
Corroded Risers in East Cambridge and Wellington Harrington Triple Deckers
Triple deckers here were built roughly 100 to 120 years ago for the East Cambridge factory workforce, and many still run original vertical pipe chases. Corroded galvanized risers reduce pressure at upper floor fixtures well before a full repipe becomes unavoidable. We test pressure floor by floor to show exactly where the loss is happening.
PFAS Aware Filtration Requests Since the 2022 Event
Cambridge's August 2022 PFAS6 detection at 17.1 parts per trillion, above the state standard, pushed a lot of residents toward point of use and whole home filtration even after the city resolved the issue with new carbon filters. We install and service filtration systems for homeowners who want an added layer of confidence in their own water.
Subdivided Harvard Square Victorians with Mixed Era Plumbing
Large Victorian and Colonial homes near Harvard Square that were subdivided into apartments over the decades often carry three or four generations of pipe material in a single building, connected at junctions that were never meant to be permanent. These transition points are a common source of slow leaks inside walls.
Lead Service Lines From Before 1996 Still in the Remaining 20 Percent
Cambridge Water Department has proactively removed about 80 percent of the city's lead service lines since 1996, but roughly a fifth remain, mostly on older streets that have not yet come up in the replacement schedule. We can identify service line material at the meter and connect homeowners with the city's ongoing program.
Neighborhoods We Serve in Cambridge
Our licensed plumbers work throughout Cambridge and surrounding communities. If you do not see your neighborhood listed, give us a call.
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Questions
Plumbing Questions from Cambridge Homeowners
Does Cambridge use MWRA water or its own supply?
Cambridge operates its own independent water system, drawing from the Hobbs Brook, Stony Brook, and Fresh Pond Reservoirs and treating water at the Walter J. Sullivan facility on Fresh Pond. This is different from Boston, Somerville, Newton, and most other Greater Boston communities, which buy MWRA distribution water directly. Cambridge can access MWRA water in an emergency, which it did for about three months in 2022.
What happened with PFAS in Cambridge drinking water?
In August of 2022, Cambridge detected PFAS6 compounds at 17.1 parts per trillion in its own supply, above the Massachusetts standard. The city switched to MWRA water for roughly three months while it installed new granular activated carbon filters at the Walter J. Sullivan treatment facility, then returned to its own Fresh Pond supply on November 19, 2022. A routine filter maintenance cycle caused a brief, temporary rise in readings again in March of 2024.
I live in a triple decker in Porter Square. How old is the plumbing likely to be?
Cambridge Terrace and the surrounding Porter Square blocks are some of the densest triple decker streets in the city, with most buildings dating between 1880 and 1930. Original vertical supply and drain chases from that era are common, and galvanized risers on the upper floors are the most frequent complaint we hear about pressure. A drain camera inspection in Cambridge MA shows exactly which section of the riser has failed before we recommend a repair.
Has Cambridge already removed its lead service lines?
Mostly. The Cambridge Water Department has proactively removed approximately 80 percent of the city's lead service lines since 1996, well ahead of most peer cities in the region. The remaining lines are being replaced on an ongoing schedule with support from MWRA board approved funding. We can check your service line material during a routine visit.
My Harvard Square area apartment was carved out of an old Victorian. What should I watch for?
Subdivided Victorians near Harvard Square, many built between 1880 and 1920, often have plumbing that was extended and modified at every conversion, so it is common to find two or three pipe materials joined together in the same wall. If you notice a slow leak with no obvious source, a junction point from an old renovation is the most likely culprit. A plumber in Cambridge MA who knows these conversion buildings can trace it in a single visit rather than opening walls at random.
Does East Cambridge still have factory era triple decker plumbing?
Yes. Triple deckers in East Cambridge and Wellington Harrington were built roughly 100 to 120 years ago to house workers from the neighborhood's former candy and soap manufacturing plants. Most retain their original vertical pipe chase, and corroded galvanized risers reducing pressure on upper floors is the single most common service call we get from this part of the city.
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$99
Drain Clean Special
Whether it is a stubborn shower drain clog, a kitchen sink backup, or any bathroom drain causing problems, our expert drain technicians can get your Boston home flowing again quickly. Family owned. No salespeople. Guaranteed.
What to Expect:
- Two hour arrival window.
- Upfront pricing with no hidden fees. A tech will inspect your drain and provide pricing before work begins.
- Free camera inspection included with exterior cleanout access to confirm the line is clear.
$399
Plumbing Inspection
Buying a home or checking the condition of your plumbing? Our plumbing inspection checks for leaks, pressure concerns, failing fixtures, water heater issues, and other visible plumbing problems.
What to Expect:
- Inspect all visible pipes, shutoffs, and water heater.
- Test water pressure and flow.
- Identify slow drains or potential leaks.
- Provide a detailed report with findings.
- Included free for Cod Club members.
$199
Water Heater Maintenance
Routine maintenance helps your standard tank water heater run more efficiently and extends its service life. Cod Plumbing flushes and inspects your water heater so small problems are easier to catch early.
What to Expect:
- Drain tank and remove sediment buildup.
- Inspect anode rod and thermostat.
- Help reduce the risk of corrosion and tank leaks.
- Recommended annually for best results.
- Ask about whole home water filtration systems.
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