Privacy
Simple version: we take the minimum, we sell nothing, and you can have it deleted with one email.
What we collect
- The first half of your postcode (e.g. BS1) – enough to place you in a pricing region. We never ask for your full postcode or address.
- Your quiz answers – roof, outdoor space, energy use, tenure. Facts about a home, not about a person.
- Your email address – only if you choose to give it, to receive your results and short notes when prices change enough to alter them.
- Anonymous usage statistics via Google Analytics – which pages are visited, on what sort of device. Not who you are.
How we use it
- To work out your result – the sums run on the answers you give and nothing else.
- To email your result to you, if you asked us to.
- To email you when the numbers behind your result change – price cap moves, kit prices – so your answer stays current. Every email has an unsubscribe link.
- To improve the tool from aggregate patterns – which questions people abandon, which routes come up most.
What we don't do
- We never sell your data. To anyone. That's the business model, such as it is.
- We never pass your details to installers, suppliers, or anyone selling anything.
- We never use your data for advertising.
- We never contact you unless you gave us your email and a reason to.
Cookies and analytics
The site uses Google Analytics to count visits and see which pages get read. Google sets analytics cookies for this – standard measurement, no advertising cookies, no remarketing. If you'd rather not be counted, most browsers let you block analytics cookies, and Google publishes an opt-out browser add-on. Everything else on the site works without any of it.
Where your data lives
- Supabase (PostgreSQL), hosted in the EU (Frankfurt).
- Resend handles email delivery.
- Google Analytics processes the anonymous usage statistics.
Your rights
- Ask for a copy of everything we hold about you.
- Ask for all of it to be deleted.
- Withdraw any consent, any time.
- One email does any of these: mat@greenbutnotheard.com
Last updated: 27 August 2026.