Emergency Plumber in Boston, MA

What counts as a plumbing emergency, and what can wait

A plumbing emergency is anything that is causing damage right now and that you cannot stop yourself: water you can't shut off, sewage coming back into the house, a frozen pipe that has split, or no water at all. Those are worth a night or weekend call-out, because every hour of water running into a ceiling or a finished basement makes the repair bill and the insurance claim bigger.

Plenty of problems feel urgent but can wait for regular hours, and waiting usually saves the after-hours premium. If you can stop the water at a fixture valve (the small valve under a sink or behind a toilet), you can usually leave the repair until the morning. The same goes for a single clogged drain when the other fixtures in the house still drain, a running toilet, a dripping faucet, or no hot water on a mild day with no leak.

• Call now: uncontrolled leaks, sewer backups, no water, burst or frozen pipes, a leaking water heater tank, water through a ceiling.
• Call the gas company or 911 first: any smell of gas, even if you think a plumber caused it.
• Can usually wait: one slow or clogged drain, a running toilet, a dripping faucet, a leak you have stopped at a fixture valve.

Why Boston houses have more plumbing emergencies than most

Boston's housing is old. Triple-deckers, brick row houses and Victorian singles built more than a century ago still make up a large share of the city's homes, and much of the plumbing inside them has been patched and extended by several generations of owners. Cast-iron drain stacks rust from the inside, galvanized steel supply pipes close up with corrosion and then leak at the threads, and old gate valves seize in the open position, so the main shutoff often won't close at the moment it is needed.

Winter makes it worse. Pipes that run through exterior walls, unheated porches, crawl spaces and the back corners of basements freeze during a cold snap and split, and the leak often only shows once the ice thaws. In a triple-decker or a converted multi-family, one burst pipe on an upper floor can soak every unit below it, which is why it pays for every unit owner and tenant to know where the building's main shutoff is before anything goes wrong.

Older neighborhoods also have combined or overloaded sewers, so a heavy rainstorm can push water back up through basement floor drains even when nothing inside the house is wrong. A plumber can tell you whether a backup is your own blocked line or a street-side problem, and whether a backwater valve makes sense for your basement.

What to tell the plumber when you call

A good emergency call takes two minutes and gets you a firm answer on price and timing. Have this ready before you dial, and ask the questions at the end before you agree to anything.

• Your address and neighborhood or town, and the type of building: single-family, condo, a unit in a triple-decker, or an apartment.
• What is happening, where, and whether you have managed to shut the water off.
• Whether you own or rent. Renters should call the landlord or property manager as well, because building repairs are normally the owner's job.
• Where the plumber can park. On permit-parking streets in Boston, Cambridge and Somerville, say so up front so they don't lose ten minutes circling.
• Ask: what is the call-out or hourly rate at this hour, when can you be here, and what is your Massachusetts license number?

What emergency plumbing costs in Boston

ConsumerAffairs' Boston guide (updated August 2026) puts licensed Boston plumbers at roughly $125 to $250 an hour, plus a service call or dispatch fee of $125 to $300 that covers travel and the first part of the job; ask whether that fee is credited toward the repair. It gives no figure for nights and weekends, so the best published guide to the after-hours premium is national: Today's Homeowner describes evenings at about time and a half, weekends at double time and holidays at triple time, while Fixr describes flat after-hours charges of $50 to $100, or $45 to $200 added to the hourly rate.

In practice the same leak can cost noticeably more at 2 a.m. on a Sunday than at 10 a.m. on a Tuesday. If you can stop the water at a valve, waiting may be the cheaper choice. If you can't, ask for the after-hours rate and any dispatch fee before anyone drives over, and get it in writing (a text is fine). Our Boston plumber cost guide has more ranges and the government wage data.

If you rent: who calls and who pays

Under the Massachusetts State Sanitary Code (105 CMR 410), the owner of a rental unit must maintain the plumbing and the equipment that heats water, and hot water has to reach at least 110°F (and no more than 130°F) unless a written lease makes you responsible for the fuel. If you rent, call your landlord or property manager first and tell them what is happening in writing (a text or email is fine) so there is a record. If water is pouring in and you can't reach anyone, shut off the water, protect your things, and keep trying the landlord.

If a landlord won't fix a plumbing problem, Boston residents can report it to the city's Inspectional Services Department through 311, and tenants in other towns can contact their local board of health. Our Boston neighborhood and town pages list the local offices.

After the emergency: insurance, water damage and permits

Once the water is off and the leak is fixed, dry out quickly. Wet drywall, insulation and flooring grow mold fast, so open the space up, run fans and a dehumidifier, and call a water-damage company for anything bigger than a small puddle. Keep the failed part if the plumber removes it, along with your photos and the invoice. Water is the biggest source of home insurance claims in the state: the Massachusetts Division of Insurance says 48.6% of homeowners' claims in 2024 were for non-flood water and freezing damage, and that most policies cover sudden and accidental damage from a burst pipe only if the home was properly heated and not left unoccupied.

Massachusetts requires a permit, pulled by the licensed plumber, before almost any plumbing is installed, replaced or repaired; only small repairs such as fixing a leaking faucet or clearing a clog are exempt. In a genuine emergency the state's rules let a licensed plumber make a fixture or gas appliance safe before the permit is issued, provided the inspector is notified and inspects no later than the next working day. A plumber who says a permit-required job doesn't need one is a red flag, and our license guide explains why.