I am 6 years into my 2 year home refurbishment project! I've just made my 3rd order with Modern UPVC Windows since 2018. That in itself should tell you something. I have found the ordering process to be easy using their well thought out website. All the information needed to make an informed decision is available as you browse, with plenty of video guides and help articles and context relevant help available at every stage. In addition, should you need any advice or assistance, actual real human beings are readily available by phone. How old school / great is that? The likelihood though is that you'll be able to research, build and order your required windows / doors etc via the operationally slick website without any problems whatsoever, as it guides you logically through the process. My previous two orders arrived on time and were delivered by the company's own delivery team and transport. I'm sure the service will be just as good this time. I have been pleased with the quality of the products and the service provided. Hence, I am a happy returning customer. Well done M UPVC W. I look forward to receiving my latest window.