We found Paul through the Vaillant site being an Advance Mastertech Vaillant installer, and it showed.
Paul managed to get our boiler fitted fast as we were isolating and have vulnerable family members, his quote was very competitive and the boiler was fitted in one day, albeit a long day but all went well and he even sorted a couple of existing CH problems we had at the same time, cannot recommend Paul highLy enough, brilliant and friendly service…..top notch