How it works
- Purchase a Skylux flat roof window between 1 September and 30 November 2026.
- Complete the application form with your company details and the dimensions of your window or windows, and upload a copy of your invoice.
- Once your application has been approved, we will transfer the cashback amount to your bank account.
How much cashback will you receive?
The amount depends on the perimeter of the window (2 × width + 2 × length):
- Window perimeter
- Cashback per window
- Less than 4,000 mm = €260
- From 4,000 up to and including 5,000 mm = €360
- More than 5,000 mm = €600
You can claim cashback for a maximum of three windows per company, giving you a total cashback of up to €1,800.
What are the terms and conditions?
- Participation is open to businesses with a valid VAT number.
- Only purchases made from 1 September up to and including 30 November 2026 are eligible. For these purchases, invoices dated up to and including 15 December 2026 will be accepted.
- Applications must be submitted no later than 31 December 2026.
- The cashback relates to the iWindow2 glass cover. The price comparison was made against a double-walled acrylic dome.
- The promotion is not valid for Vitria, iDome or iWindow3.
- A maximum of 3 windows per business and VAT number will be approved. If you submit more windows than there are places remaining, the windows with the highest cashback amounts will be approved.
- Each invoice may only be submitted once.
- Your application is only valid if it is complete: company name, VAT number, address, email address, telephone number, IBAN, invoice number, a legible copy of the invoice and the dimensions of each window (width × length).
- Payment will be made by bank transfer to the stated IBAN after the invoice and the submitted details have been verified.
- Skylux checks every application. Incomplete, incorrect or duplicate applications are not eligible.
- [Payment period to be completed, for example: “within four weeks of approval”.]
- An iWindow can be installed on a Skylux PVC upstand 20/00.
- Skylux PVC upstands 16/00 and 16/20X cannot be combined with a flat roof window.
- Would you like to install the flat roof window on an existing upstand? Discover our renovation frame.


Flat roof windows in stock. Fast to site.
More than 80 glass sizes for your flat roof windows in stock, available in clear, opal and solar-control glass. Plan faster. Install faster. Fewer delays on site. Discover our full stock range in the updated catalogue.
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