UK Renovation Budgeting Guide 2026 | Costs Explained

What Bathroom and Kitchen Renovations Really Cost in 2026

Before you set a number in your head, it helps to know what other UK homeowners are actually paying right now. Industry cost guides put a full bathroom renovation in 2026 at roughly £4,000 to £15,000 or more, with most homeowners spending between £6,000 and £10,000 on a complete mid-range refit. Kitchens run higher: a budget flat-pack kitchen fully fitted typically costs £8,000 to £15,000, a mid-range in-frame shaker kitchen with quartz worktops runs £15,000 to £35,000, and bespoke kitchens can exceed £50,000. If you are tackling both rooms as part of a wider project, a full renovation of a typical three-bedroom semi – including kitchen, bathroom, flooring and redecoration – commonly lands between £40,000 and £80,000, with London and the South East running 25–40% above the national average purely on labour.

How Much Contingency Should You Actually Set Aside?

This is the step most first-time renovators skip, and it is the one that causes the most stress. The Federation of Master Builders recommends setting aside around 10% of your total project cost as contingency for a newer property, rising to 15% or more where you are altering structure or working on an older home, and 20% or higher for homes built before 1960. The logic is simple: the older the building and the more walls, floors or pipework you open up, the more likely you are to uncover something – old wiring, damp, or pipework that does not match the plans. Treat this fund as a genuine buffer for the unexpected, not a budget for optional upgrades once the project is underway.

Timing Your Renovation to Save Money

When you book matters almost as much as who you book. Tradespeople are typically busiest in spring and early summer, so quotes gathered in late autumn or winter tend to come in more competitively, and many bathroom and kitchen suppliers run their biggest promotions in November and just after Christmas. If your renovation involves swapping out a radiator, replacing a kitchen sink, or upgrading a bidet toilet, planning the order around this quieter window can shave a meaningful amount off the final bill. It also gives you time to order longer-lead items, such as a made-to-size designer radiator or a new kitchen sink, well ahead of the fitting date rather than holding up trades on-site.

A Simple Room-by-Room Budgeting Checklist

Start by separating must-haves from nice-to-haves before you get a single quote – it is far easier to add back a nice-to-have if the budget allows than to cut a must-have once work has started. Get at least three like-for-like quotes so you are comparing the same scope of work, not just a final number. Split your budget roughly between labour and materials/fixtures, since labour is usually the larger and least flexible share. Finally, lock in your contingency percentage from the section above before you touch the rest of the budget, and treat it as untouchable until something genuinely unexpected comes up.

For more on planning individual rooms, browse Ultra Bathroom for radiators, bidet toilets and kitchen sinks that fit a range of renovation budgets.