Now is the time for new windows.

Have you ever thought just how old your windows are? How well sealed? How burglar-proof? No?

Then find out now what your windows are really capable of: with the Finstral Window-Check! All you need are ten minutes’ time, a readily accessible window and our step-by-step instructions.
Did you know? Around 50 percent of all windows in Europe are over 20 years old and do not meet today’s quality or safety requirements.
Order your Kit free now
How good are your windows?

Find out in just ten minutes!

With five simple tests you can see whether your windows offer good protection against noise and cold, how tightly they will close and how effective they are against burglars. All you need, along with simple step-by-step instructions, can be found in the Finstral Check-Kit. 

Everything for your Window-Check.

Let’s go! Five simple tests to check the state of your windows.

Lighter: to check insulation
Paper strips: to test sealing
Bolts: to compare locking parts
Surface samples: to assess optical defects
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The Window-Check.
The Window-Check.