Cookie policy
What cookies and similar storage this website uses, why, and how to change your choice.
Last updated 23 October 2026
2. What we use
We don't use analytics, advertising or tracking cookies, and no third-party cookies are set.
Essential storage is always on, because the site can't work properly without it. Storage for offline use and app features is only used if you allow it.
| Name | Purpose | Type | Expires |
|---|---|---|---|
| sjm-cookie-consent | Remembers your choice about storage | Essential (local storage) | 12 months |
| sjm-quote-draft | Saves your quote answers on this device until you send them | Essential (local storage) | 7 days |
| sjm-quote-sent | Shows your first name and reference on the quote confirmation page | Essential (cookie) | 10 minutes |
| Service worker and its cache | Saves pages and files so the site works without a connection | Optional: offline use and app features | Until you change your choice |
| sjm-visits, sjm-visit-counted | Count your visits, to decide when to suggest adding the site to your home screen | Optional: offline use and app features | Until you change your choice (sjm-visit-counted: until you close the browser) |
| sjm-install-dismissed | Remembers if you chose "Not now" on the home screen suggestion | Optional: offline use and app features | 30 days |
3. Third parties
WhatsApp links open WhatsApp, which has its own privacy and cookie policies. We don't embed videos, maps or social media feeds. The areas map is drawn from OpenStreetMap data and doesn't load anything from OpenStreetMap.
4. Changing your choice
Use "Cookie settings" at the bottom of any page to change your choice at any time. If you choose "Essential only", the offline pages and app-feature storage are removed from your device straight away. You can also clear site data in your browser settings.