I used Alpine as I was let down from my builder. My builder agreed to supply and fit and some bi-folds within my renovation costs, I am particular in what I like and I was happy to agree to this based on seeing the product provided. To cut a long story short, the offering my builder provided was of substandard quality and I wasn’t happy. This meant I needed to get some bi-folds fast... within the same day of the enquiry i have received my quotation and plenty of information of the product. I visited the showroom the next day and I was greeted by Judy who was great. I placed my order in the showroom and within 3 weeks The bi-folds were installed on site. Super fast turnaround and great product, thanks Alpine.