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Water Heater Repair, Installation & Replacement Across Plymouth County, MA

Water Heater Repair, Replacement, and Tankless Installation for Plymouth County

When your water heater fails in a Plymouth County home, the impact is immediate—cold showers, no dishwashing, and potentially a basement full of water if a tank ruptures. 3R Plumbing & Mechanical installs and repairs every type of residential water heater across the South Shore of Massachusetts, including gas and electric tanks, on-demand tankless units, hybrid heat-pump water heaters, and indirect-fired tanks tied into a boiler. Our licensed Massachusetts plumbers diagnose the issue quickly, recommend the right unit for your home and fuel type, and complete most replacements the same day. We have served South Shore homeowners since 1975 and handle Mass Save heat-pump water heater rebates in-house so the savings hit your invoice up front.

3R plumbing techs in front of 3 tankless water heaters installed

Common Water Heater Problems We Fix Across Plymouth County

Water heaters wear out gradually. Most homeowners notice the first signs years before a failure, but some breakdowns happen without warning. Our trucks are stocked with the parts and tools required to fix the most common issues on the first visit. We service residential gas, oil, electric, and hybrid units. We service:

  • No hot water at all
  • Not enough hot water
  • Water that is too hot or fluctuating
  • Rusty or discolored water
  • Leaking tank or fittings
  • Strange popping or rumbling noises
  • Pilot light or ignition failure
  • Tankless error codes
  • Pressure relief valve discharge
  • Anode rod and dip tube replacement
  • Recirculation pump issues
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Tank Water Heater Repair and Replacement

Most Plymouth County homes still rely on a 40, 50, or 80-gallon gas or electric tank water heater. When yours is leaking from the bottom, producing rusty water, running out of hot water faster than it used to, or making popping noises from sediment buildup, it is approaching end of life. Our trucks are stocked with replacement units from the brands we install most across the South Shore—Bradford White, Rheem, A.O. Smith, and State. Every water heater service includes:

  • Proper sizing for your household demand
  • Code compliant venting and gas line work
  • New shutoff valve and expansion tank
  • Pan, pipe, and emergency shutoff inspection
  • Haul away and disposal of your old unit
Schedule Service
Tank watter heater Pembrooke MA
Tankless Water Heater installed Pembrooke MA

Tankless and Hybrid Water Heater Service

Across Massachusetts, more South Shore homeowners are upgrading from traditional tank heaters to tankless on-demand units or to hybrid heat-pump water heaters that qualify for substantial Mass Save rebates. Our plumbers install Navien, Rinnai, Noritz, and Bosch tankless systems, plus Rheem, A.O. Smith, and State hybrid heat-pump models. We also service combi boilers and indirect-fired tanks. Items we commonly address:

  • Annual descaling and flushing service
  • Error code diagnosis and board replacement
  • Combustion analysis on gas units
  • Heat pump water heater installation
  • Recirculation pump and timer setup
  • Conversion from tank to tankless
Schedule Service

Our Water Heater Service Process

Transparent pricing and clear communication are non-negotiable at 3R. When you call us for water heater service anywhere in Plymouth County, here is exactly what to expect:

Full unit and venting evaluation

Combustion or electrical safety testing

Anode rod and tank condition check

Sizing and demand calculation

Clear written estimate before any work begins

Upfront repair or replacement options

Repair vs. Replacement When to Consider a New Water Heater

Most residential water heaters last 8 to 12 years for tank models and 15 to 20 years for tankless units. If your tank is over 10 years old and showing signs of failure—rusty water, popping sounds, slow recovery, or visible corrosion at fittings—replacement is almost always the smarter call before it ruptures and damages your Plymouth County basement or living space. As a rule of thumb, when repair costs climb past 40 percent of the price of a new unit, replacement wins. We install high-efficiency gas, electric, tankless, and heat-pump water heaters from trusted manufacturers like Bradford White, Rheem, A.O. Smith, Navien, and Rinnai, and we present clear Good, Better, and Best options. Heat-pump water heaters qualify for up to $750 in Mass Save rebates plus federal tax credits—we handle the paperwork in-house.

Modern high-efficiency furnace replacement, Plymouth County MA
Wall-mounted high-efficiency boiler installation, South Shore MA
Technician servicing a residential boiler in a Plymouth County, MA home

Areas We Serve

We proudly serve the Plymouth County area!

Areas We Serve

We proudly serve the Plymouth County area!

Don’t see your town listed? We service many additional South Shore communities including Hull, Carver, Kingston, Halifax, Hanson, and Whitman. Call (781) 974-5239 to confirm we cover your location.

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(781) 974-5239
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Water Heater FAQs Plymouth County, MA

Quick answers to the water heater questions South Shore homeowners ask us most. Don’t see yours? Call (781) 974-5239.

How much does a new water heater cost installed in Plymouth County, MA?

Most water heater replacements in the Plymouth County area run $1,650 to $3,800 for a standard 40-50 gallon gas or electric tank installed, $3,800 to $6,500 for a tankless on-demand system, and $3,500 to $5,500 for a hybrid heat-pump water heater before Mass Save rebates. We always provide a written estimate before any work begins.

How long do water heaters last?

Standard tank water heaters typically last 8 to 12 years. Tankless on-demand units commonly last 15 to 20 years with proper annual flushing. Heat-pump water heaters generally last 10 to 15 years. Hard water in some South Shore towns can shorten lifespan, which is why we recommend annual maintenance.

Should I switch from a tank to a tankless water heater?

It depends on hot water demand and fuel cost. Tankless units provide endless hot water, take up less space, and last longer—but cost more up front and may require gas line or venting upgrades. For most 2-4 person Plymouth County homes, a properly sized tankless unit pays back within 8-12 years on gas savings.

What is a heat-pump water heater and is it worth it?

A heat-pump water heater (also called a hybrid water heater) pulls heat from the surrounding air to heat water, using roughly one-third the electricity of a standard electric tank. With up to $750 in Mass Save rebates plus federal tax credits, the payback in Plymouth County is often 4-6 years.

Do you offer same-day water heater replacement?

Yes. We stock the most common tank water heaters on our trucks and can usually complete a same-day replacement in Plymouth County and across the South Shore. Tankless and heat-pump installations may require ordering specific equipment but are typically scheduled within 24-48 hours.

What water heater brands do you install?

We install Bradford White, Rheem, A.O. Smith, and State tank heaters; Navien, Rinnai, Noritz, and Bosch tankless units; and Rheem, A.O. Smith, and State hybrid heat-pump water heaters. We also service Buderus, Weil-McLain, and Triangle Tube indirect-fired tanks tied into boilers.

Will a tankless water heater work with hard water?

Yes, but tankless units are more sensitive to scale buildup than tank heaters, so annual descaling is important in areas with hard water. We include scale prevention recommendations during every tankless installation and offer maintenance plans across the South Shore.

How often should I have my water heater serviced?

Tank water heaters should be flushed annually to remove sediment, and the anode rod should be inspected every 2-3 years. Tankless units should be descaled annually, especially in areas with hard water common across parts of Plymouth County.

Coupons

We believe great service should also mean great savings. Check out our exclusive coupons below and make your next plumbing or HVAC repair, installation, or upgrade more affordable.

$50 OFF

Any Plumbing Service
Expires on 12/31/2026

*Not to be combined with other services or coupons.

$100 OFF

Water Heater Install
Expires on 12/31/2026

*Not to be combined with other services or coupons.

Military Discounts

Always available for our military!
Expires on 12/31/2050

*Not to be combined with other services or coupons.

First Responders Discount

Always available for our first responders!
Expires on 12/31/2050

*Not to be combined with other services or coupons.

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Since 1975

Veteran Owned & Operated

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Help Is Just a Call Away

Whether you just lost hot water, are tired of running out mid-shower, or want to switch to a Mass Save-rebated heat-pump water heater, our licensed Massachusetts plumbers are ready to help. We have served Plymouth County and South Shore homeowners since 1975. We answer the phone, show up on time, and stand behind every installation in writing. Call (781) 974-5239 to schedule water heater service or request a free in-home estimate—same-day emergency replacement available.

(781) 974-5239