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What is a Vaillant guarantee?

Your Vaillant guarantee covers you for the repair of any defects related to the manufacture of your Vaillant appliance. The repair has to be completed by one of our Vaillant Service Engineers and will cover both parts and labour.

Your guarantee does not cover defects which are unrelated to the manufacture of the product or a result of misuse. We'll send you the full terms and conditions of the guarantee along with you guarantee confirmation. Alternatively, you can read them here.

Terms & conditions for our domestic boiler range guarantee

Terms & conditions for our commercial boiler range guarantee

Before you register you guarantee, here's what you'll need

We'll need the following information about your appliance.

  • Serial number*
  • Gas Safe registration number of installer
  • Date of installation
  • Installation address
*Your 28 digit serial number can be found on the control panel of the boiler and in the benchmark logbook which your installer should have provided you after the installation.

As soon as your boiler is installed, you need to register the guarantee

  • For ecoFIT pure and ecoFIT pro models, you get a 2-year guarantee
  • With ecoTEC plus and ecoTEC exclusive models, you get a 5-year guarantee
  • For ecoTEC 46kW - 120kW models, you get a 5-year guarantee
  • For ecoCRAFT 80kW - 120kW models, you get a 5-year guarantee
You can also receive exclusive extended warranties of up to 10 years through your Vaillant Advance installer.

We recommend you register within 30 days of installation to ensure you're protected. As soon as you're registered, our nationwide team of Vaillant Service engineers will be on hand to help should anything go wrong and replace parts free of charge if required.

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