Various bits and pieces throughout the years. He installed a new boiler system (2015) which involved taking out 2 old boilers. 1 bigger boiler, re-piping. Also Changed 1 or 2 radiators that needed replacing (2017-2018). Sorted 1 or 2 showers as well as kitchen tap. Also did my mother's house. Does annual boiler service boiler system - most recent April last year about due to do one again soon. No complaints, very good. He is pretty busy, can be hard to get a hold but Very Thorough and does a good job. Pipework is really a work and art. Already have recommended to others.