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Leaking Water Heater Help (508) 872-7687

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Water heater leaking in Sudbury? Call before it gets worse.

One call reaches a licensed local plumber who replaces water heaters in Sudbury, usually the same day. Know what a fair price looks like before anyone arrives. Based near Framingham.

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(508) 872-7687

24 hours, 7 days

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Hardness depends on which well

Sudbury is not on MWRA water. The Sudbury Water District pumps from nine wells in three aquifers, and its 2025 report gives a hardness range of 55 to 194 parts per million. The low end is soft. The high end is past what the U.S. Geological Survey calls very hard.

So two houses in Sudbury can have very different water. If the heater rumbles or pops, that is sediment, and the tank should be flushed twice a year. The four jobs that keep a tank from leaking.

Almost all single-family

About 92 percent of Sudbury homes are single-family, the highest share of any town on this site. The median home was built in 1977.

Gas and rebates

National Grid is the gas company. For a gas smell, leave and call 911, then National Grid at 800-233-5325. Eversource supplies the electricity, so Mass Save's 2026 rebate of $750 on a heat pump water heater applies.

Tenants

The Sudbury Health Department is at 275 Old Lancaster Road, 978-440-5479.

Updated October 2026

Main sources

Common situations

Leaking water heaterShut the water and the heat, find the source, and know which leaks mean a new tank.Stopping water damageStop it, stay clear of wet wiring, dry it inside two days, and keep the record your insurer asks for.Upper floors and condosWho to tell first, the pan the code requires, and how condos divide the bill.No hot waterThe checks you can make yourself on a gas or electric heater, and when to stop.Replacement costDated Massachusetts price ranges, what pushes a quote up, and what the quote must state.Landlords and tenantsThe hot water temperatures the code requires, who pays for the fuel, and the deadlines.Preventing a leakThe anode, the flush, the relief valve and the pressure, and where each town's water comes from.

What you can call about

  • Leaking or burst tank, same-day replacement
  • No hot water, pilot and igniter problems
  • Tank and tankless (gas, electric, oil-fired)
  • Expansion tank and pressure valve
  • Old unit hauled away
  • Upper-floor, closet and attic units in condos, multi-families and apartments

Hours

Every day
24 hours, 7 days

Other towns in MetroWest

AshlandFraminghamHollistonHopkintonMarlboroughNatickNeedhamWaylandWellesley

Other areas:South ShoreNorth ShoreWorcester area

Questions

Is this a plumbing company?

No. This is an independent referral site for Sudbury. Calls go to a local licensed plumber. Ask for the license number on the call.

What should I do right now?

Turn off the cold water supply valve on top of the heater, then shut off the gas valve or the breaker. Put towels down and move anything valuable off the floor. Then call.

I'm a tenant. Whose problem is this?

The landlord's. Massachusetts requires landlords to supply hot water and to fix a failed heater promptly. Shut the valve, photograph the leak, and notify the landlord in writing today. If you need the number for a plumber because the landlord asked you to arrange it, that is what this line is for.

It's a condo. Who pays?

Usually the unit owner for the heater itself and any damage inside the unit; damage to units below or common areas goes through the association's master policy and your HO-6. Document everything before the plumber removes the old tank.

Do you charge for the call?

No. You pay the plumber directly for any work you agree to.

Call now: (508) 872-7687