1. Find your data plateShow me how
To find your data plate, open the roof window using the ventilation bar and look inside the open sash. The data plate label will be on the left or right side.
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Is your old roof window from the 70’s, 80’s, 90’s or beyond? Find out today – and win!
Note: If your old roof window is a different brand, we may not be able to tell you its exact age. However, you can still enter for a chance to win a new VELUX replacement.
*T&Cs apply. One entry per household. Prize is up to 3x replacement roof windows, supplied and installed, to a total value of £10,000 or €11,500 (incl. VAT). A winner will be randomly selected and contacted by VELUX after entries close on 30th September 2026.
See full Terms & Conditions for details.
Noticing any of these? It might be time for an upgrade. Make your home more comfortable with modern VELUX roof windows.