this is the second time i have used Modern UPVC windows during my house extension work (dormer and no rear extension) on both occasions the website has proved to be helpful and adaptable to meet my exact requirements. It it easy to use for non trade persons such as myself and the information provided in the help boxes is clear and concise. Changing the sizes and styles is very easy and being able to change and swap at the click of a button to get your windows just right is really good. i spoke to the staff on one occasion as i needed the windows in double quick time the staff went above and beyond and out of there way to accommodate me and in doing so allowed the build to carry on with no delays. i have already recommended Modern UPVC to both friends and family and also the builder who did the work on my house passed comment on how good the quality was. Many thanks again for helping me out with both my projects and i will certainly be back when i come to change the other windows in my house. Kind regards Duncan Baines