This hopefully is a simple answer producing question (but probably won’t be!), who makes the best window?

Take into account aesthetics, energy efficiency, product quality and cost. Leave your opinions as comments and vote on the poll on the right hand side.

My vote goes to WHS Halo and their Rustique profile.

The full list (and in no particular order!):

1. WHS Halo
2. Swish
3. Rehau
4. Eurocell
5. Plastmo
6. Profile 22
7. Synseal
8. Liniar
9. Spectus
10. Kommerling
11. Veka
12. Sash
13. Deceunink

If I have missed any off let me know!