How to spot a good window?

[Mulberry View]

I've got a sample window here. It's an Aluclad system, made in Europe. They look lovely to me, but I'm no expert. Do any of you have a keen eye for this sort of stuff?

 

They are triple-glazed and offer great u-Values. They come in under our all-Aluminium quotes.

 

 

 

 

 

 

[Mulberry View]

 

 

 

 

[Conor]

Check their weather / airtightness certifications. Looks like it has triple seals, same as our internorm. 

[Redbeard]

Care to share the maker?

[craig]

Looks fairly decent from the pictures, care to mention the manufacturer? I can check the details and let you know what I think based on those?