Cost Calculator

Terms of use

Last updated 20 September 2026

The short version: our figures are guide prices, not quotations, and you should always get three written quotes.

Prices and estimates

All prices, ranges, calculator outputs and cost estimates on this site are indicative guide figures compiled from published market data and the other sources described in our pricing methodology. They are provided for general information and comparison only.

They are not quotations, not offers, and not a statement of the price you will be charged, and we are not a party to any contract you enter into with a tradesperson. Actual costs vary substantially with property type, condition, access, specification, materials, regional labour rates, timing and the individual contractor. Quotes for what appears to be the same job frequently differ by a wide margin for entirely legitimate reasons.

You should always obtain at least three written quotations before committing to work, and satisfy yourself as to the suitability, qualifications and insurance of any contractor you engage.

VAT, grants and regulations

VAT treatment, grant availability and eligibility criteria change, and are subject to the rules of the relevant scheme or the HMRC guidance in force at the time your work is carried out. We link to the primary source for each and state when it was last checked, but you should confirm your own position before relying on it.

Nothing on this site is tax advice, financial advice, or legal advice.

Finance illustrations

The repayment figures shown on this site are illustrations only. They are not a quotation, not an offer of credit, and not financial advice. We name no lender, link to no credit product and receive no commission in connection with finance. Rates available to you depend on your circumstances and creditworthiness.

Quotes and tradespeople

The quote service on this site is operated by Leads Do Work Ltd. We make introductions only. We do not carry out, supervise or guarantee any work, and any agreement is made directly between you and the tradesperson.

Liability

We take reasonable care to keep the information on this site accurate and current, but we do not warrant that it is complete or error-free, and we accept no liability for decisions made in reliance on the guide figures published here. Nothing in these terms excludes liability that cannot lawfully be excluded.

If you believe a figure is wrong, please tell us.

Changes

We may update these terms. The date above always reflects the current version.