Installation guides
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.
Quick links
Self-service guides for multiple roof windows
What should I do when I have condensation on my window?
Important product safety warning & replacement information for VELUX sloped roof window
How far does the VELUX window open?
Can I upgrade my manually operated window to electrically operated one?
More
Products related to multiple roof windows
Vertical duo
Find all support information, from installation and maintenance tips to troubleshooting and repair advice for the VELUX vertical duo solution.
Sloping and fixed
Find all support information, from installation and maintenance tips to troubleshooting and repair advice for sloping and fixed roof windows.
Couldn't find what you were looking for?
Need further assistance?
If you are not sure how to proceed or can’t find what you are looking for, our customer service team are ready to assist you.