We had a Viessmann Vitodens 050 and a Drayton Wiser wireless thermostat control installed the end of last month. The prices for both are very reasonable compared to other companies we had in for quotes. Ahmad who came to give us a quote did not try to push us to buy what not needed. He gave a straightforward quote: a total price of Viessmann Vitodens 050, a smart controler, a magnetic filter, a limescale reducer, a flue, installation, disposal of the old unit and clean the central heating system. Quick and easy to understand unlike others that itemised everything even the length of copper pipes would be used to make it look expensive!The lead time was excellent too. It was only one week. Raj and Alex came early on the day and finished the installation at the end of the day. They went an extra mile to ensure the job was done properly. We did not have a radiator drain valve, they advised us to go and get one and installed it for us.Within 10 days after the installation, we received the warranty from Viesmann via email.Long story short, very happy with the service!