This question is quite hard to answer, as it really depends on what sort of services you require. For example, this plumber in Worthing, https://www.plumbituk.org/plumber-worthing/, offers a variety of different services from general plumbing to emergency callouts and even bathroom fitting a design. Companies like this will quote prices on a case by case basis, taking into account the amount of time and labor that is required. They may also offer hourly rates.
All companies offer different rates, so it's a good idea to shop around a little before deciding which plumber to hire. You should wait and see which one is offering the best price. Also, if you're in an emergency situation, then you will likely pay a lot more than you would if you can wait for a few days before you get your work done. The best thing to do is to contact some plumbers in your area and ask about their specific prices.