Have you decided on the UPVC windows? Did you check on Rehau? I'm considering LG and Fenesta as well. It seems post sales will be an issue for Rehau or LG due to their presence especially places like my home town. But then again I'm not sure how much post sales service is required for these so ...

Have you decided on the UPVC vendor? I'm considering LG vs Fenesta. LG cheaper but not sure about the future maintenance