builderfinder.uk

← All calculators

Kitchen & bathroom renovation cost calculator

Get an instant ballpark estimate for a new kitchen or bathroom based on room size and finish tier.

Estimated cost

, .

Covers strip-out, fitting, plumbing, electrics, and units/fixtures at the chosen tier. Structural changes (e.g. moving a kitchen island's plumbing, or knocking through a wall) can add significantly on top.

Post this job free & get real quotes

Free to post. Vetted builders respond directly to you.

How this is calculated

We start from typical UK full-room costs at each finish tier - budget (flat-pack units, standard fittings), mid-range (semi-custom units, better appliances/sanitaryware), and premium (bespoke joinery, high-end appliances or fittings) - then scale by room size. Kitchens cost more than bathrooms of a similar size due to appliances and cabinetry.