Looking for plumber - hopefully not too expensive!

We are looking for a reiable plumber to come and do the first fix of a bathroom next week - New Shower, bath taps and a towel rail. Then return after it's been tiled the following week to do 2nd fix - Shower, toilet, sink etc

So two seperate dates - The room has already been stripped of old tiles and shower stuff etc.

If anyone has any recomendatiosn of someone they ahve sued to do something similar please let me know? We would liek to get a quote