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Need a licensed plumber in Cambridge, MA? IS Plumbing serves Harvard Square, Central Square, Kendall, Porter Square and East Cambridge with plumbing, heating, gas fitting and drain work in homes, condos and multi-families.
Cambridge is dense and old — triple-deckers and two-families in North Cambridge and Cambridgeport, brownstone-era condos near the squares, and tight mechanical rooms throughout. We do leak repair, repiping, water heater and boiler replacement, gas fitting and drain clearing, pulled under the correct City of Cambridge permits and done with respect for your building and neighbors.
Cambridge is one of the few Boston-area cities with its own water supply — the Hobbs Brook and Stony Brook reservoirs feeding the treatment plant at Fresh Pond, with the MWRA as backup — while its sewers drain to the regional Deer Island system. The housing is dense and old: triple-deckers and two-families in North and East Cambridge, brick condo buildings near the squares, and shared systems everywhere.
Permits file with the City of Cambridge Inspectional Services Department, and condo work usually adds an association to coordinate — we handle both. The everyday Cambridge job is working clean in tight quarters: a water heater swapped in a closet-sized mechanical room, a stack section replaced without disturbing three units, gas piping updated during a renovation.
"Great experience — they installed an automatic smart water shut-off, did a full boiler maintenance with warranty parts, and explained everything clearly."
"IS Plumbing is by far the best plumbing company I've ever used. I've owned my home about 35 years and tried several plumbers around MetroWest — these guys are on another level."
"True professionals — respectful and tidy. I've worked with them three times. The last was a burst water main; they were the only ones who responded fast, offered a solution, and got it done."
Call +1 (774) 486-0909 — answered 24/7 for emergencies — or send a request with a photo of the problem.
We find the actual cause first, then give you an honest, upfront quote before any work starts. No surprises at the end.
Licensed and insured work, pulled under the proper Cambridge plumbing or gas permit and inspected — and the site left clean.
Based in Millbury, MA, we cover all of Cambridge and the surrounding towns. Don't see your street? Call +1 (774) 486-0909 and ask.
Yes. We work in single-families, condos, two-families and multi-family buildings across Cambridge, coordinating access and pulling the right City of Cambridge permits.
Always. Plumbing and gas work in Cambridge is permitted through the city's Inspectional Services Department and inspected — we handle the paperwork so it passes.
We cover Cambridge regularly — call ahead to schedule, and for burst pipes, no heat or no hot water we answer 24/7 at +1 (774) 486-0909.
Yes. Much of North Cambridge and Cambridgeport still runs galvanized supply lines and cast-iron drains — repiping and drain replacement in triple-deckers and two-families is routine.
Yes. We install and replace tank and tankless water heaters and boilers across Harvard Square, Central Square, Porter Square and East Cambridge, permitted and inspected.
From our shop in Millbury, MA we serve Cambridge and the surrounding towns across the Worcester area, MetroWest and Greater Boston. Don't see your town listed? Call and ask.
Free quotes for scheduled work · 24/7 line for emergencies.
