Terms of Use

Last updated: 2026-04-19

These terms govern your use of tradecalculator.co.uk (the “site”), operated by Tredecology Ltd. By using the site you agree to these terms. If you do not agree, please do not use the site.

1. What the site provides

The site is a free library of UK-oriented building, trade and DIY calculators plus reference content. It is provided “as is” without account registration or payment.

2. Accuracy and professional advice

Calculators are estimates based on published UK standards (BS/EN, Building Regulations Approved Documents), manufacturer datasheets, and established trade practice. Real-world results depend on site conditions, product tolerances, and decisions by qualified professionals.

The site is not a substitute for professional advice. Always confirm structural, electrical, gas, drainage, and fire-safety specifications with a qualified and (where required) competent person-scheme or Gas-Safe-registered professional. Always check local Building Control requirements before starting work.

3. Limitation of liability

To the fullest extent permitted by law, Tredecology Ltd is not liable for:

indirect, incidental, or consequential loss arising from your use of the site;
loss of profits, revenue, goodwill, business interruption, or anticipated savings;
errors or omissions in calculator output, or out-of-date citations where regulations have since changed;
third-party links and their content.

Nothing in these terms limits or excludes liability for death or personal injury caused by negligence, fraud, or any liability that cannot lawfully be excluded under English law.

4. Acceptable use

You agree not to:

scrape the site in bulk using automated tools faster than a reasonable human pace;
attempt to reverse-engineer, modify, or break the site’s services;
misrepresent the site’s content as official guidance or as an endorsement of a product;
use the site for any unlawful purpose.

5. Intellectual property

view, save, and print pages for personal or internal business use;
link to the site from your own site or documents;
quote short extracts with attribution to TradeCalculator.

You may not: republish substantial extracts, scrape at scale for training commercial AI systems, or present the site’s content as your own.

6. Privacy

See our Privacy Policy and Cookie Policy for how we handle personal data.

7. Changes to these terms

We may update these terms when the law, our services, or our practices change. The “last updated” date reflects the most recent revision.

8. Governing law

These terms are governed by the laws of England and Wales. Any dispute is subject to the exclusive jurisdiction of the courts of England and Wales.

9. Contact

Questions about these terms: admin@tredecology.co.uk.