Looking for Water Heater Experts in Taunton & Raynham, MA – Call Cotti!

Cotti-Johnson HVAC Inc., specializes in water heater replacement, installation, maintenance, and repairs. Proudly serving Taunton, Raynham, and South-Shore towns.
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Serving Taunton and Surrounding Areas Since 1948

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Keeping Your Business Comfortable Is Our Priority

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We Have The Experience You Can Trust.

If your 40-gal water heater has finally given out or you’re looking to install a new system, turn to the experts at Cotti-Johnson HVAC Inc. For over 75 years, we’ve proudly served the homeowners of Taunton and Raynham, MA. As a family-owned and operated business, we offer you trustworthy plumbers, transparent pricing, warranties on both parts and labor, and a 100% satisfaction guarantee.

Whether you need water heater repair, hot water heater replacement, or routine maintenance, you can rely on our experts for prompt service at competitive prices.

Services for your Water Heater In Taunton

Restoring Your Hot Water in Norwood, the South Shore, Boston & Surrounding Areas!

Water heaters supply hot water for cleaning, bathing, laundry, cooking, and other tasks in homes and commercial facilities. When your water heater stops working or you are ready to upgrade, call the experts at Cotti-Johnson Inc. We provide installation and repair of traditional water heaters with a storage tank and tankless water heaters in Taunton, Norwood, the South Shore, Boston, and throughout the surrounding areas.

Water Heater Repair

Our Taunton water heater repair technicians are skilled at pinpointing common problems that arise with these systems. Many issues can be resolved, but some problems indicate that replacement is the best course of action. We repair and service all water heater brands and models, even those that we don’t install. Our technicians never try to sell you something you don’t need and always explain all your repair and replacement options so that you can make the best decision for your family.

Taunton, MA Water Heater Replacement Service

Is your water heater making strange noises? Do you run out of hot water more quickly than before? Your water heater may be nearing the end of its useful life. Here are the red flags that your water heater needs to be replaced soon.

  • It’s more than 10 years old
  • You noticed rusty water from the hot water tap
  • The tank is rusting
  • You run out of hot water faster than usual
  • The water takes too long to heat
  • The water tank is leaking
  • Fluctuating water temperatures
  • Higher energy bills
  • Cloudy or foul-smelling hot water

Trust our expert drain cleaning solutions for safe and effective clog removal.

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Choosing the Right Water Heater: Storage Tank or Tankless?

When it is time to replace your hot water heater, you have the option of a traditional water heater with a storage tank or a tankless water heater. There are advantages and disadvantages to each type of system. We have extensive knowledge of hot water heaters to fully explain your options, help you compare products, and select the best hot water heater for your specific needs, whether for your home or business.

Tankless hot water heaters offer benefits that include:

  • Requiring less space for installation
  • A constant supply of hot water on demand
  • Superior energy efficiency

A primary disadvantage of tankless water heaters is their higher initial cost compared to traditional water heaters. While they require a greater upfront investment, tankless water heaters use less energy and have a longer lifespan. The money you save on lower home utility costs and longer equipment life can offset the price difference.

Gas Water Heater Service & Electric Water Heater Checks in the Taunton-Raynham Metro Area

To ensure your home remains comfortable and your water stays hot, regular servicing of your water heater is crucial. Whether you own a gas or electric model, you can rely on Cotti-Johnson HVAC, Inc. for top-notch maintenance, repairs, and replacements. Our comprehensive water heater services for both electric and gas systems include:

  • Pilot light and burner inspection
  • Gas line safety checks
  • Thermocouple and thermostat testing
  • Heating element testing
  • Thermostat calibration
  • Electrical connection inspection
  • Anode rod checks
  • Full tank draining and flushing

Routine checkups of your water heater can help you avoid issues and prolong the system’s lifespan by several years. They can also help identify when it’s time for a hot-water heater replacement before a complete breakdown occurs.

Are you sick of constantly running out of hot water? Contact us to learn more about our tankless water heater services today!

Annual Water Heater Maintenance & Flush Routine

Performing an annual flush on your water heater is a straightforward yet essential maintenance task that helps ensure your unit operates efficiently. Over time, sediment and minerals, particularly in regions with hard water, can accumulate at the bottom of the tank. This buildup can force your water heater to work overtime, leading to increased energy costs, diminished hot water supply, and even a shortened lifespan for the system.

Flushing the tank once a year removes this sediment, which helps:

  • Improve heating efficiency
  • Extend the life of your water heater
  • Reduce the risk of corrosion and leaks
  • Ensure a consistent hot water supply

It’s advisable to regularly flush both gas and electric water heaters, as this simple maintenance step can help safeguard your investment and prevent expensive repairs down the line.

Water Heaters2026-08-19T10:11:11+00:00

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FAQ's
What happens during a water heater installation?
A water heater installation starts with disconnecting and removing the old unit, then setting the new tank or tankless unit, connecting the water and gas or electric lines, and testing for leaks before restoring hot water to the home. Most tank replacements are finished within a few hours. Cotti Johnson HVAC installs water heaters for homes throughout Taunton, Massachusetts.
Is a leaking water heater an emergency?
A leaking water heater should be treated as urgent, since a failing tank can release many gallons of water quickly and cause serious flooring or drywall damage, and in some cases signals a tank about to fail completely. The water and power or gas supply to the unit should be shut off right away. Cotti Johnson HVAC responds quickly to water heater leaks in Taunton and Bristol County.
What is the difference between a tank and a tankless water heater?
A tank water heater stores and continuously reheats 40 to 80 gallons of hot water, while a tankless water heater heats water on demand as it flows through, taking up less space and often lasting longer with proper maintenance. Tankless units typically cost more upfront to install. Cotti Johnson HVAC installs both types for homeowners across Plymouth County, Massachusetts.
How much does a water heater replacement cost?
A standard tank water heater replacement typically costs $1,200 to $2,500 installed, while a tankless unit can run $3,000 to $5,500 depending on the home's gas or electrical setup. Most tank units last 8 to 12 years before replacement is needed. Cotti Johnson HVAC installs both types for homeowners throughout Taunton, Massachusetts.
Can I install a new water heater myself, or do I need a plumber?
Installing a water heater yourself is not recommended, since the job involves working with gas or high-voltage electrical connections, pressure relief venting, and code requirements that a licensed plumber is trained to handle safely. A poorly connected unit can leak or create a carbon monoxide risk. Cotti Johnson HVAC installs water heaters to code for homeowners in Taunton, Massachusetts.
Do I need a permit to replace a water heater in Massachusetts?
Massachusetts generally requires a permit to replace a water heater, since the work involves gas, electrical, or venting connections that need inspection to confirm they meet state plumbing code. A licensed plumber typically pulls this permit as part of the job. Cotti Johnson HVAC handles permitting for water heater replacements throughout Norfolk County, Massachusetts.
What are the warning signs that a water heater is failing?
Warning signs of a failing water heater include rusty or discolored hot water, a rumbling or popping sound from sediment buildup, water pooling around the base, and a tank older than 8 to 12 years. Any one of these signs means the unit should be inspected before it fails completely. Cotti Johnson HVAC inspects water heaters for homes throughout Taunton, Massachusetts.
How long does a typical water heater last?
A typical tank water heater lasts 8 to 12 years, while a tankless model can last 15 to 20 years or more with regular maintenance like annual flushing to remove mineral buildup. Water quality and usage also affect how long a unit performs well. Cotti Johnson HVAC recommends replacement planning as a unit approaches the end of its expected life for homes in Bristol County, Massachusetts.

Our water heater services keep your system in tip-top shape and ensure you have all the hot water you need. Call Cotti-Johnson HVAC Inc. in Taunton, MA, at 508-301-1831.