I can add to the growing list of references for Sam Lovatt of Dearne Plumbing [07909 842 848] - for bathrooms, plumbing and electrical work.
Sam completely re-fitted our small bathroom which included the installation of a partition for a new electric shower, boxing in for the toilet and basin, new spot lights in the ceiling, an electric mirror, laminate flooring, tiling etc. A tricky job that was in no way straightforward!
He also put in a new consumer unit and moved an oddly placed pendant light. All in all great value.
For plastering I can recommend Matt D'arcy (who worked on our bathroom for Sam and ended up skimming most of the rest of the house for us!). He is a great lad and a great plasterer. (07828 759 673)
Karen at City Plumbing in Rotherham (Sam's recommendation) painlessly guided us through the options for bathroom fixtures and fittings - help that was much needed and appreciated.
Finally, we got some beautiful tiles from Sarah at Hallam Ceramics (plus a cash discount).