My windows have not been right from day one ,they came out after I complained no resolution said it’s the way they are ? I called again came out adjusted the windows said it will be ok a month later same problems ,,these windows are old now can’t open them and the road noises unbelievable..but still within the warranty. Had them inspected they been fitted wrong ,all this time and money wasted ,,,can’t get through customer services because covid another excuse not to answer ,,save you money go elsewhere..I have now contacted a consumer show ,will get other involved ,including FENSA