Boston · Suffolk County
Whole-House Repiping in Boston, MA
Repiping in Boston means replacing original brass, galvanized and sometimes lead supply lines in buildings that are often more than a century old. Massachusetts requires the work to be done by a licensed plumber with a permit, and in a triple-decker or condo conversion it has to be coordinated across units.
- Independent local pros
- Free referral, no obligation
- You approve the price before work starts
What is different about whole-house repiping in Boston?
Old Boston buildings were plumbed in stages, so it is normal to find brass on one floor, galvanized on another and copper patches in between. Brass and galvanized pipe corrode from the inside and leak at threaded joints. Because Boston's water is soft, scale is not what closes these pipes; age and corrosion are.
The building type sets the plan. In a triple-decker the supply lines stack vertically, so repiping one floor without the others leaves old pipe above or below it. Condo associations need to decide which lines are common. Plaster walls and ceilings add patching work. If the service line from the street is lead, raise it at the same time, since the Boston Water and Sewer Commission has a program for the private portion.
From the Boston plumbing guide
Aging supply and drain lines
Original brass, galvanized and cast-iron pipe in century-old buildings corrodes and leaks at joints.
What to check and ask before work starts in Boston
- Ask for the Massachusetts plumber license number and confirm a permit will be pulled
- Ask which lines are shared between units and how the work will be staged
- Ask how plaster will be opened and repaired
- Ask whether the service line is lead and how that would be handled
Licensing and permits for whole-house repiping in Boston
Massachusetts licenses plumbers and gas fitters through the Board of State Examiners of Plumbers and Gas Fitters. State rules require a permit for nearly all plumbing work and do not allow unlicensed people, including homeowners, to perform it. Permits in Boston are issued by the Inspectional Services Department.
Keystream Plumbing is a referral service. We do not perform plumbing work or hold a contractor license. The independent plumber you are connected with is responsible for licensing, permits and the work itself.
What the job usually involves
The steps are the same in Boston as anywhere; the local conditions above change how each one is done.
- Inspect and plan
- Permit and protect
- Install new lines
- Patch and inspect
Whole-House Repiping questions from Boston
Do I need a permit to repipe in Boston?
Yes. Massachusetts requires a permit for nearly all plumbing work, and in Boston permits are issued by the Inspectional Services Department. The licensed plumber files it and the work is inspected.
Can one unit in a triple-decker be repiped on its own?
The piping inside one unit can be replaced, but the vertical lines feeding it pass through the other floors. Replacing those requires access to, and agreement from, the other units or the owner. A plumber can show you where the split is.
Sources
- Board of State Examiners of Plumbers and Gas Fitters, Commonwealth of Massachusetts
- Lead service lines, US Environmental Protection Agency
Local information reviewed October 1, 2026. Rules and programs change; confirm details with the agency before you rely on them.
More plumbing help in Boston
Whole-House Repiping in other cities
Ownership rules, soil, water and pipe materials make this a different job from one city to the next.
Related guides: How to Prevent Frozen Pipes in Winter, Low Water Pressure: Causes and Fixes, How Plumbers Price Jobs: What You're Paying For.
Need whole-house repiping in Boston?
Call (833) 520-4758. Same-day service is often available; call to check timing.