Recommendations for fitting new tap and fresh water pump near Watford

[KernowMaid]

Hi everyone. The water pump is not working and the tap is clicking and drawing a current according to the control display panel. I have checked the fuse and all is OK. A new water pump and tap are on order (because I can't face doing the microswitch). In the past, I have replaced household shower pumps/rewired sockets etc but for some reason, I'm losing my nerve about doing this job. Does anyone have any recommendations for someone near Watford who could do the replacement - I have the parts already. Thanks.