During the first year from installation the warranty covers the boiler against manufacturing defects for both parts and labour.
In order to extend this warranty to the second year (ecoTEC plus and exclusive models only), or third year (ecoTEC exclusive only), from installation all you have to do is ensure that the boiler receives a service when it is a year old (for the three year warranty on an ecoTEC exclusive, the boiler must be serviced when the boiler is 1 and 2 years old).
Please note that the cost of the service is not included in the guarantee.
The boiler must be serviced either by Vaillant Ltd. or another competent servicing company (Gas Safe registered) within one year of the installation date and the details recorded in the Benchmark logbook.
For your customer to qualify for their warranty please either:
- Complete and return the guarantee card, found in the boiler, within 30 days of the boiler being installed.
- Call the Vaillant warranty department on 0800 073 2141 to activate the warranty by phone.
- Complete the online warranty registration form which can be found here.


