VELUX Support

Vertical duo

Find all support information for your vertical duo solution here, from installation and maintenance tips to troubleshooting and repair advice.

Self-service guides for vertical duo

Can I upgrade my manually operated window to electrically operated one?

I cannot open / close my manual VELUX roof window

What should I do when my windows appear to be leaking?

I can feel draught around my window, what should I do?

Find all support information, from installation and maintenance tips to troubleshooting and repair advice for multiple window solutions.

Find all support information, from installation and maintenance tips to troubleshooting and repair advice for sloping and fixed roof windows.

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