Our 10 Year warranty packages on new Worcester-Bosch boilers is a complete pledge to customers that we have a strong belief in our installations. Our no quibble warranty is designed to give total piece of mind when choosing us to install your new boiler. The only condition of this warranty is that we carry out the annual service annually to ensure the boiler stays in the best possible condition to provide lasting reliability. Presently the warranty on Worcester Boilers Si/Cdi/Ri with our accreditation status is 7 Years, with opting for the Worcester system filter adds a additional year, we will further underwite this for 2 years giving a reassuring 10 year warranty, a very good reason to choose us to install your new boiler.