Cookie policy
This policy explains the cookies and similar storage Better Windows UK uses on this website. It was last updated on 11 July 2026.
Cookies are small files stored on your device. We use them mainly to remember which marketing campaign brought you to the site so we can measure our advertising. You can control or delete cookies in your browser settings at any time.
First-party marketing attribution cookies
When you land on the site, we set first-party wml_* cookies (and matching local storage entries) to record marketing attribution — the campaign source, medium, campaign name and search terms (UTM values) and advertising click identifiers such as Google and Meta click ids, plus the page you first landed on. These help us understand which campaign led to your visit and enquiry.
| Cookie | Purpose | Expiry |
|---|---|---|
wml_utm_source, wml_utm_medium, wml_utm_campaign, wml_utm_term, wml_utm_content | Store the marketing campaign values from the link you arrived through | 90 days |
wml_gclid, wml_fbc, wml_fbp and similar click ids | Store advertising click identifiers so conversions can be attributed | 90 days |
wml_landing_url | Records the first page you landed on for attribution | 90 days |
These are first-party cookies set by this website only.
Tag manager and analytics cookies
Our pages include a Google Tag Manager container that is currently disabled. If and when tagging is enabled, it may set additional cookies — for example Google Analytics cookies such as _ga and _ga_XXXXXXX (used to distinguish visitors and sessions, typically lasting up to two years) and advertising cookies (such as Meta's _fbp). We will update this table when those tags go live.
Managing cookies
You can block or delete cookies through your browser settings. Blocking our attribution cookies will not stop you using the site or submitting the enquiry form. For more on how we use the data we collect, see our privacy policy.