In 40 seconds
A new staircase in the UK typically costs roughly £1,000–£2,000 for a standard softwood flight, rising to about £2,500–£6,000+ for a bespoke oak staircase, with installation labour usually adding £500–£2,000 and removal of the old stair around £300–£800. If you only want to refresh what you have, a renovation or cladding kit runs about £500–£1,500 in materials, with a fitted oak-clad refurbishment commonly landing around £2,000–£5,000. Spiral staircases span roughly £1,000–£2,500+ for a kit up to several thousand for a bespoke design. Any new or structurally altered stair must meet Part K building regulations (rise and going, a pitch no steeper than 42°, 2m headroom and a 100mm baluster gap), so the honest answer is always a range that depends on your stair, material and access.
Most staircase guidance is published by companies fitting or selling them, so the numbers tend to be optimistic and the rules glossed over. The pages below give honest cost ranges for new builds, renovations, oak and spiral stairs, and set out the Part K building regulations — before you take a single quote.