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Vaillant Boiler Guarantee Registration

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

Available guarantee periods and 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.

If you had your boiler installed by a Vaillant Advance installer, then they can register the boiler's guarantee for you and offer an extended guarantee period. If you're unsure whether your installer is an Advance member, you should contact them immediately and confirm this.

If you're still deciding what boiler you would like, why not get in touch with a Vaillant Advance installer? Select an installer on our Find an Installer tool and they will contact you. Once they have contacted you, they will be able to arrange a survey of your property and find the most suitable Vaillant boiler for your heating and hot water demands. Once they have installed your boiler, they will then register your boiler and offer you an extended guarantee period for your appliance.

Our guarantees are shown below. Please also note that 10-year guarantees are also available on some of our boilers. Get in touch with a Vaillant Advance installer and ask for further information.

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.

Boiler rangeStandard guaranteeGuarantee when registered by an Advance installer
ecoTEC exclusive with Green iQ5-year7-year
ecoTEC plus5-year7-year
ecoTEC pro2-year7-year
ecoFIT pure2-year7-year