VELUX Support

Vertical duo

Find all support information for your vertical duo solution here, from installation and maintenance tips to troubleshooting and repair advice.
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Self-service guides for vertical duo
Important product safety warning & replacement information for VELUX sloped roof window
What shall I do when my manual operated window (incl. roof balcony or roof terrace) will not stay open?
What should I do when my windows appear to be leaking?
What should I do when I have condensation on my window?
More

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