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Tankless Water Heater Replacement Cost

A tankless water heater replacement is a job best left to real professionals. Before getting started, make sure you compare several local quotes.

Use our simple two step process to tell us about the Heating and Cooling job and what is required and well try and connect you with Heating and Cooling companies suitable to your needs. Your contact details and privacy will be treated with the utmost discretion and privacy. Our aim is for you to be connected with the tradesperson that is 100 % suitable to your needs and circumstances.

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How Much Do Tankless Water Heaters Cost?

Tankless water heaters are great ways to provide your home with hot water while saving space and cost on your regular utility bills. Despite their many advantages, they will occasionally break down, necessitating a repair or replacement.

Tankless water heater replacement is not always incredibly expensive, but the cost can indeed vary a bit. Considerations such as where you live, how your home is laid out, and the type of unit needed to provide warm water for your entire home will all play into the final cost to replace a tankless water heater in your home.

How Much Will It Cost To Replace A Tankless Water Heater?

  • In a best-case scenario, you will only pay £230 for a tankless water heater replacement in your home. However, should you need a higher-end unit with greater capacity, the cost to replace a tankless water heater could rise as high as £2,750. The average job is £1,150, so there is definitely variance in pricing.
  • A local plumbing specialist with experience in tankless water heater replacement will be able to provide you with a detailed and personalized estimate according to your own specific needs. Some variables affecting costs:

  • For electrical heating units, your home will need to be outfitted with a 220-volt electrical outlet. If you do not already have this capability in your home, it will require the involvement of a trained electrician to make the improvement.
  • Often times, tankless gas water heaters will require gas supply line pipes that are wider than those typically found in older homes.
  • Electrically-powered units typically cost less to install than gas units but are less frugal in their day to day operation costs.
  • Depending on where you live, certain inspections and permits may be required by local authorities before making such modifications to your home.
  • Is there an old, broken unit in place that must first be removed, prior to installing the new unit?
  • A trained and certified tankless water heater replacement specialist will be able to advise you on matters concerning the tradeoffs between gas and electric models as well as what local authorities will require regarding permits and inspections. Some home improvement jobs can be tackled by the homeowner as do it yourself projects. Due to the variable costs and potential risk of electrocution or gas inhalation, this project would not qualify as one to try on your own.

    How To Get In Touch With Local Professionals

    Fortunately, there are qualified, experienced, and trained tankless water heater replacement specialists available in your area who will be glad to assist you.

    Simply enter your home postcode into the form on this page and local professionals will contact you with no-obligation, 100% FREE estimates for the work. There is absolutely no obligation attached to this free offer and no purchases to make by entering your zip code now.


    "Easy enough process to follow and tradesmen got in touch.Just wanted to say thanks to the team for trying their utmost to find a suitable tradesmen. I Liked that i was not bombarded with calls" - Dirk Rust from Chelmsford".

    Useful Information

    Low Cost £230
    Typical Cost £1,050
    High Cost £2,750
    Please consider prices differ greatly depending on location and specification. For an accurate price, please speak to one of our specialists in your area today