Terms & disclaimer

Last updated October 2026.

Guidance, not a survey

Our tools produce estimates based on simplified physical models and the information you provide. They are not a building survey, a diagnosis of any specific property, or professional, medical or legal advice. Results can be wrong, particularly when inputs are estimated.

Always get a suitably qualified professional to inspect where there are signs of structural problems, leaks, electrical hazards, gas appliances, significant mould, or health effects. Don't rely on our tools for decisions about safety.

Accuracy

We take care to keep content accurate and up to date and publish our methods openly, but we make no warranty that the site is free of errors. Laws, guidance and prices change; check official sources before acting.

Liability

To the extent permitted by law, we are not liable for any loss arising from use of the site. Nothing in these terms limits liability that cannot be limited under the law of England and Wales.

Third-party links and adverts

Adverts and links to other sites are provided for convenience. We don't endorse advertisers or control external content.