Useful numbers. Clear assumptions.
What Does It Cost? is a working UK-focused brand for free calculators and practical budgeting guides.
A planning tool you can inspect
Every calculator shows the inputs and the calculation behind the result. Trade-price defaults are illustrative examples, not a claim to have surveyed the market. Enter your own supplier or contractor quotation to make the result useful to your circumstances.
Evidence where it matters
Tax rules are linked to official sources and tied to a stated tax year. Financial tools explain the rate definition and their limitations. A review date means the formula and cited rules were checked; it does not mean that a qualified adviser has assessed your personal circumstances.
Built around the next decision
Our guides focus on the detail that can make two quotes hard to compare: scope, measurement, inclusions, exclusions and changes. We do not publish fabricated reviews, endorsements or local price data. Location records stay unpublished until they have distinct supporting evidence.