Frequently Asked Questions

I have a DAKSTRA window. Will Contrio fit?

It will fit perfectly as DAKSTRA is part of the Altaterra Group. Contrio blinds fit to all of our window products

How do I know which type of window I have?

By looking at the producers’ plate, which is located at the top of the sash. Visible, only when the window is opened.

I cannot find my producers’ plate/ my window plate does not show my window size?

You can easily measure your window. For further guidelines please see section “How to choose the right blind”.

How can I install your blind onto a Roto window?

We do not recommend installing our blinds on Roto windows.

Can I find some installation instructions on the internet?

You will find detailed installation instructions and videos on for each product – please check “Instalation step by step”.

How do I keep my blind clean?

Simply clean it with a damp cloth.

Do I need to remove my awning blind in the winter?

No, you do not need to remove your awning blind during the winter. However, to increase longevity it is still recommended, particularly in areas with heavy snow loads and ice on the roof.

My blind does not fit perfectly. What is wrong?

If you have bought the correct type and size of blind, the blind will always fit perfectly. The blinds are designed to be a perfect match to the roof windows. Please check that the window size on the metal plate on the top inside of the sash corresponds to the blind size on the packaging.

I would like to replace my blind. What do I do?

Please visit your original point of purchase or other similar stores in the area. They should be able to help you.

My blind is broken within the guarantee period. What do I do?

Please contact your point of purchase.

Can I have both an interior blind and a roller shutter?

Yes, you can easily have a blackout blind or roller blind on the inside and a roller shutter on the outside. This is very much recommended as the interior blind protects against the sunlight, whereas the roller shutter protects against heat, noise and burglary.

What is the guarantee on blinds?

There is a 2 year guarantee on all blinds.

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