Sloped roof windows

Dormer

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Create more space with a VELUX dormer or mini dormer. Transform your room by bringing the outside in with these innovative VELUX solutions. Open up your room, and add more space, fresh air and natural daylight.

Choose a VELUX dormer or mini dormer as an awe-inspiring dormer alternative if you'd like to add more space, possibilities, and flexibility to your room.

Ready to renovate your home but concerned about costs and complexity?

Get a free and non-binding design proposal for your project, crafted by our expert team. It includes:

  • Personalised design concept matched to your style
  • Realistic images previewing options in your space
  • Detailed product specifications and price quote
  • Hassle-free handover for easy installation
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VELUX dormer

The VELUX dormer transform spaces with a dramatic increase in natural daylight and an amazing feeling of openness. This innovative alternative to traditional dormers lifts the window out of the roof, increasing usable space while creating a bright and airy atmosphere.

Whereas a traditional dormer consists of a window and roof combination, the VELUX dormer uses windows in place of the roof. This provides much more natural light into the room. The VELUX dormer is available with 4 or 6 roof windows.

The VELUX dormer can be installed without a permit in most situations as the dormer does not protrude further than 60 cm from the roof surface.

Suitable for roof pitches: 35° to 75°

  • Up to 2.5 times more daylight compared to a traditional dormer with same glazing area
  • Can be installed in just one day (excluding preparations and interior finish)
  • Comes ready for easy installation of VELUX sun protection products and VELUX shutters

VELUX mini dormer

A VELUX mini dormer solution is an easy way to increase the useable area under your attic, creating a big impact with a boost of natural light and space.

The mini dormer lifts the roof windows out of the roof at a 10° angle. It is available with 1,2 or 3 roof windows installed side by side for maximum impact.

Suitable for roof pitches: 10° to 75°

  • Up to 50% more daylight compared to a traditional dormer with same glazing area
  • Can be installed in just one day (excluding preparations and interior finish)
  • Comes ready for easy installation of VELUX sun protection products and VELUX shutters

Customise your dormer

This dormer window is largely made by the contractor himself, with the exception of the VELUX roof windows that are used in this type of dormer. This gives extra flexibility in dimensions of the dormer and is custom-made. Read more on customized dormers with VELUX roof windows
  • Creates extra living space with lots of daylight
  • Flexibility in dimensions and tailor-made
  • Prepared for easy installation of VELUX blinds and anti-heat solutions

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Work with the right professionals

Our experts are at your disposal to guide you and answer all your questions, bringing natural light into projects and advice at different levels of a design project.

Get a free and non-binding design proposal for your home

Get a free and non-binding design proposal for your home

Personalised design concept matched to your style

Expert advice on the best products

Visualisations of your new space

Seamless handover to your installer

Detailed product specifications and price quote

Quotation included

Get help with your installation or replacement project

Expert advice and product specifications

Fast, safe and hassle-free installation

Quotation, including interest-free finance options

Tips and inspiration for your roof window project

Roof window sizes and dimensions
Are you looking for information about VELUX roof window sizes? For flat or pitched roofs and for new installation or replacement? A VELUX roof window comes in many different shapes and sizes. Here you can inform yourself of the dimension range from our smallest roof window to the largest sizes.
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The VELUX Energy Guide
VELUX has a long history of transforming indoor spaces with natural light and fresh air. With rising energy costs, it's more important than ever to improve energy efficiency in our homes. Roof windows are an effective solution that can help save energy on heating, cooling, and lighting.
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Sustainability is the way we do business

Sustainability
The VELUX Sustainability Strategy 2030 is a 10-year transformational journey in which we pioneer climate and nature action, innovate sustainable products and secure a responsible business. Why? Because the world needs it and it is who we are. It’s simply the right thing to do and it’s our nature!
Learn more about our sustainability strategy 2030