Privacy Policy

Last updated: January 2025

DIY & Build Calc is committed to your privacy. All calculators run entirely in your browser — no data you enter is sent to any server.

1. No Data Collection

Every calculation runs locally in JavaScript. Your project dimensions, cost estimates and other inputs are never transmitted or stored.

2. Local Storage

We use localStorage only to remember your light/dark theme preference.

3. Analytics

Anonymised Google Analytics. Opt out: Google opt-out.

4. Advertising

Google AdSense ads may use cookies. Manage: Ad Settings.

5. Amazon Associates

Affiliate links use ID: glitchhunter-21.

6. Disclaimer

All cost estimates are for guidance only. Always get 3 quotes from qualified tradespeople. Structural work requires Building Regulations approval. Gas work requires a Gas Safe registered engineer. Electrical work requires a Part P registered electrician.

7. Contact

privacy@diyandbuildcalc.co.uk