Viessmann Boilers & Spares Reviews 

My Viessman boiler of three years stopped working due to a fault. Still under warranty, Matt, the Viessman engineer, came to repair it. He spent two hours repairing the fault and gave it an extra check - he was exceptionally thorough. The fault had led to the electrical connection failing so he could not leave the boiler working for me - but he was able to bypass the faulty connection and blast the heating so that my cold house of five days could have some heat before he left. It was a very kind touch in a very cold week.
An electrician has since come to repair the connection so everything is in good working order now. But I'd like to thank Matt for going above and beyond during his visit.

I'd also like to thank the woman in Customer Services who brought forward my repair date by a whole week!

I had a fault on my Wiessman bioler which was 3 years old, I contacted Wiessman and they advise that i needed to pay a £210 fee to renew the 5 year warranty, this was done following a discussion with the sales person, to ensure the warranty will cover the boiler even as it has a fault, I was assured this would be covered.
I then arranged and paid for an Wiessman engineer to attend. He arrived late and also advised that the faulty heat exchanger in the boiler was not covered under the warranty. I could not believe this as it was part of the boiler and I was advised it would cost me £600 to repair.
Viessmann after service was terrible, they would not answer their phones, auto voice recording advising that I had to email my problem to them. I would strongly recommend to purchase your boiler else where. I ended up purchasing a new boiler of a different make with a 10 year no quibble guarantee. The Visesmann company and there after sales is a total joke.