Plumbing Emergency? Here's Exactly What to Do (and When to Call a Pro)

By A1 Discount Plumber · Serving Eastern Massachusetts 24/7 · Updated April 2026

A plumbing emergency turns a normal day into a disaster in minutes. Water pouring through a ceiling. Sewage backing up into a shower. No hot water on a freezing February morning. When it happens, the first 10 minutes matter more than anything else — they're the difference between a $300 repair and a $15,000 insurance claim.

This guide walks you through exactly what to do for the six most common plumbing emergencies we respond to in Massachusetts. Bookmark it. Share it with your family. Because when a pipe bursts at 2 a.m., you won't have time to Google "what do I do."

First: Know Where Your Water Shutoff Is

Before we get to specific emergencies, there's one piece of information every homeowner in Massachusetts needs to know right now: where is your main water shutoff valve?

If you don't know, find it today — not during an emergency. In Massachusetts homes, it's almost always in one of these places:

• Basement, along the wall closest to the street
• Crawl space, near the front foundation wall
• Utility closet or near the water heater in homes without basements
• Outside, in a ground-level box near the property line (less common)

The valve is usually a round handle (gate valve) or a lever (ball valve). Turn gate valves clockwise until they stop. Turn ball valve levers 90 degrees perpendicular to the pipe. Test it today so you know it works and you know how it moves.

Emergency #1: Burst Pipe or Major Leak

A burst pipe is the worst-case scenario for most homes — it can dump hundreds of gallons of water in under an hour. In Massachusetts, the most common causes are frozen pipes in winter and aging copper or galvanized pipes in older homes.

What to do in the first 5 minutes:

1. Shut off the main water valve. Stop the source before anything else.
2. Turn off the electricity at the breaker if water is near outlets, light fixtures, or electrical panels.
3. Open a faucet at the lowest point of the house (basement or first-floor sink) to drain the remaining water in the pipes and relieve pressure.
4. Contain the water with towels, buckets, and bins. Move furniture and electronics away from the affected area.
5. Take photos and video before you clean up — you'll need them for your insurance claim.
6. Call a 24-hour plumber. A burst pipe is not a DIY fix.

If this sounds like what's happening right now, call our emergency plumbing team at +1 (508) 556-2269. We respond across Eastern Massachusetts 24/7.

For older homes, it may be time to consider re-piping services to prevent future bursts. See our guide on replacing old pipes in Massachusetts homes.

Emergency #2: Sewage Backup

Sewage backing up through a floor drain, shower, or toilet is both a health hazard and a sign of a serious problem — almost always a main sewer line blockage. Do not try to snake it yourself. Residential drain snakes can't reach or clear a main line blockage, and you risk making the backup worse.

What to do:

1. Stop all water use in the home. No flushing, no showers, no dishwasher, no washing machine. Every gallon that goes down a drain makes the backup worse.
2. Keep children and pets away from the affected area. Raw sewage contains dangerous bacteria.
3. Open windows for ventilation.
4. Do not touch standing sewage without gloves and protective gear.
5. Call an emergency plumber immediately. This is a same-day emergency.

A1 Discount Plumber handles sewage backups with emergency drain cleaning, camera inspection, and hydro jetting when needed. If your home has a sewer pump, the backup may be pump failure — also something we repair on the spot.

Emergency #3: No Hot Water

Losing hot water in January in Massachusetts isn't just uncomfortable — for families with young kids or elderly members, it's a real health concern. Before you panic, know that most "no hot water" calls are fixable the same day if you call by early afternoon.

What to check before calling:

• Pilot light (gas heaters): Look through the small viewing window at the bottom of the tank. If it's out, you can try to relight it following the instructions on the label — but if it won't stay lit, stop and call a pro.
• Circuit breaker (electric heaters): Check your electrical panel. A tripped breaker is a 5-second fix.
• Thermostat setting: Make sure it hasn't been accidentally turned down.
• Water around the base: If you see any water pooling, stop — you have a tank leak. Shut off the water supply to the heater and the gas or electricity, and call a plumber.

For anything beyond those quick checks, call our team. Our water heater repair and installation service covers all brands and most repairs are completed same-day.

Emergency #4: Overflowing or Severely Clogged Toilet

A single clogged toilet is annoying. A toilet that's overflowing — or worse, multiple toilets that are clogged at once — is a main line blockage and a real emergency.

If one toilet is overflowing:

1. Lift the tank lid and push the flapper down to stop water from entering the bowl.
2. Turn the water supply valve behind the toilet clockwise to shut it off.
3. Wait 10 minutes, then try plunging with a flange plunger (the kind with a rubber extension, not a standard sink plunger).
4. If the water won't drain in 30 minutes, call a plumber — do not keep plunging aggressively or you can force water into the wax ring and damage the floor.

If multiple fixtures are clogged (main line backup):

1. Stop using all water in the house.
2. Check if water backs up when you run the washing machine or shower — if yes, it's definitely a main line issue.
3. Call an emergency plumber with drain cleaning equipment and a camera.

Our toilet repair and installation team handles both — single-unit clogs and full line backups. If the problem turns out to be a main line issue, we bring in the hydro jetting equipment to clear it.

Emergency #5: Frozen Pipes

Massachusetts winters freeze pipes every year, especially in basements, crawlspaces, exterior walls, and unheated garages. A frozen pipe is an emergency before it bursts — not after.

Signs a pipe is frozen:

• No water or only a trickle from a faucet
• Visible frost on an exposed pipe
• Strange banging sounds when you try to run water
• Bulging or cracked pipe visible on inspection

What to do:

1. Turn off the water at the main shutoff as a precaution.
2. Open the faucet at the end of the frozen line — if the pipe has ice in it, you want a path for the water to escape when it thaws.
3. Thaw slowly with a hair dryer, warm towels, or a space heater (kept away from flammable materials). Never use an open flame or blowtorch — it damages pipes and is a fire hazard.
4. Start thawing near the faucet and work back toward the frozen section.
5. If you can't find the frozen section, or if a pipe is visibly bulging, call a plumber before it bursts.

For prevention, check out our winter plumbing prep tips — covering exposed pipes is cheaper than replacing them.

Emergency #6: Gas Smell or Suspected Gas Leak

Once the gas is off and the area is safe, our gas piping services can inspect, repair, and replace gas lines to code. We work with the gas company to get your home back up safely.

When Is It Actually an Emergency? (How to Decide)

Not every plumbing problem needs a 2 a.m. phone call. Here's how we tell homeowners to decide:

When in doubt, call and ask. Our dispatcher can usually tell you in 30 seconds whether you need emergency service or can wait until morning — and that's a free phone call either way.

What to Expect When You Call an Emergency Plumber

Here's what a typical emergency call with A1 Discount Plumber looks like:

1. You call — we answer 24 hours a day. Describe what's happening.
2. We dispatch a licensed plumber with the right tools for your specific problem. No "we'll see you Tuesday" — we give you an arrival window in hours, not days.
3. We diagnose on-site and show you what's wrong before recommending anything.
4. We give you a flat-rate quote before any work begins. Emergency rates are disclosed upfront.
5. We fix it — most emergencies are resolved in a single visit with parts carried on our trucks.
6. We clean up and leave the work area cleaner than we found it.

Why Massachusetts Homeowners Trust A1 Discount Plumber

A1 Discount Plumber has been the go-to emergency plumbing team across Eastern Massachusetts for over 20 years. We serve homeowners and businesses in Acton, Acushnet, Ashland, Bellingham, Berkley, Berlin, Bolton, Boxborough, Dartmouth, Fall River, New Bedford, and throughout the Metro West and South Coast regions.

Every plumber on our team is licensed and insured. Every job gets upfront pricing. And every emergency gets answered — because "emergency" doesn't mean anything if the phone doesn't get picked up.