A note of warning on using TJ Builders - we had a terrible experience with them: they abandoned our bathroom job half finished having pestered us for money throughout the job (which hadn't been agreed in advance). Fortunately we had only paid about 70% when they walked out, but it has taken months to get other firms in to fix and redo their work. They botched the tiling (many chips up the edging of the metro tiles - clearly cut using the wrong tools) and we had to get a plumber in to redo some of the piping as it was so bad (visible sink feeds set at totally different levels...). They also failed to consult us before tiling the floor, though we had discussed talking it over before they did it - so tiles are now the wrong way around. Plus they set the shower so low it touched our heads! (I'm 5"8.)
