While the cost of a new bathroom can vary depending on several factors (size, design elements, type of shower and/or bath and sink etc), we’ve offered some average costs. For a standard bathroom including a bath, shower (or electric shower), sink and toilet, you’d be looking at around £600 to £2,000. Add installation onto this (which depends on the size of the bathroom and the number of people working on it), it can add an extra £800 - £3,000. You may also want to take into account the cost of removing the old bathroom and safely removing fixtures, as this can cost between £500 and £2,000.