Vertical duo
Find all support information, from installation and maintenance tips to troubleshooting and repair advice for vertical duo solution.
VELUX Support
Multiple roof windows
2in1, 3in1, and more
Find all support information for your multiple roof window solutions here, from installation and maintenance tips to troubleshooting and repair advice.
Self-service guides for multiple roof windows
What should I do when my windows appear to be leaking?
What should I do when I have condensation on my window?
What shall I do when my manual operated window (incl. roof balcony or roof terrace) will not stay open?
Important product safety warning & replacement information for VELUX sloped roof window
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Products related to multiple roof windows
Sloping and fixed
Find all support information, from installation and maintenance tips to troubleshooting and repair advice for sloping and fixed roof windows.
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