Policy
Privacy Policy
Last updated: March 2026
Who We Are
Cii Double Glazing (company registration number TBC) is a double glazing supply and installation company based at Unit 1 Avenir Works, 22-23 Danes Road, Romford, RM7 0HL. We supply and install windows, doors, roof lanterns, and repair glazing across Essex and East London.
If you have any questions about this privacy policy or how we handle your data, please contact us at sales@ciidoubleglazing.co.uk or by phone on 020 8500 9100.
What Data We Collect
When you submit an enquiry or request a brochure through our website, we collect:
- Your name
- Your email address
- Your phone number
- Your postcode
- Details of your enquiry or the brochure you requested
- Your consent to be contacted about that brochure download and related products or services
- Your marketing email preference where provided at the point of enquiry
If you accept analytics cookies, we collect website usage and advertising measurement data (page views, session duration, on-page interaction patterns, and conversion events) via Google Analytics, Microsoft Clarity, Vercel Analytics, and Meta Pixel. This data is only collected with your consent.
On paid offer pages, we also collect first-party operational funnel events such as page loads, section views, scroll thresholds, CTA clicks, phone clicks, form starts, validation errors, and successful submissions. This helps us understand whether the offer page itself is working. It does not use third-party advertising scripts, cookies, localStorage, or a persistent visitor ID, and it is not used to build advertising profiles. If you choose "Essential only" in the cookie banner, we treat that as an objection and stop this operational funnel measurement.
How We Use Your Data
We use the information you provide solely to:
- Respond to your enquiry and arrange a free survey
- Provide you with a quotation for our products and services
- Provide the brochure or download you requested
- Contact you by phone or email about that brochure download, your enquiry, and relevant products or services
- Follow up on your enquiry if you have not yet responded
We do not sell, rent, or share your personal data with third parties for marketing purposes.
We will only send you marketing emails if you explicitly opt in when submitting a form. You can unsubscribe at any time using the link in any marketing email. We will always contact you about your specific enquiry regardless of your marketing preference.
Data Retention
We retain your enquiry data for up to two years, after which it is securely deleted. If you become a customer, we retain job-related records for seven years for legal and warranty purposes.
Your Rights
Under UK GDPR, you have the right to:
- Access the personal data we hold about you
- Request correction of inaccurate data
- Request deletion of your data
- Object to how we process your data
To exercise any of these rights, contact us at sales@ciidoubleglazing.co.uk.
Cookies
This website uses essential cookies required for the site to function. We also use analytics and advertising measurement cookies (Google Analytics, Microsoft Clarity, Vercel Analytics, and Meta Pixel) to understand how visitors use the site and measure enquiries from our advertising. These cookies are disabled by default and only activated if you choose "Accept all" in our cookie banner.
You can change your cookie preferences at any time using the "Cookie Preferences" link in the footer.
Contact Us
Cii Double Glazing, Unit 1 Avenir Works, 22-23 Danes Road, Romford, RM7 0HL. Phone: 020 8500 9100. Email: sales@ciidoubleglazing.co.uk.
You also have the right to lodge a complaint with the UK Information Commissioner's Office (ICO) at ico.org.uk.
