Having roller doors installed at my commercial premises was one of the best decisions I have ever made. Suddenly the delivery trucks could enter and unload their products at a much greater speed than in the past and everyone knows that in the world of business, time is money. However, after a year or so, the roller doors started to malfunction and would get stuck when opening and closing. I called in a friend who is very good at mechanical things, and he explained I hadn't been maintaining the doors properly and that the tracks were full of dirt and debris. We spent the day together servicing the doors and he taught me a lot of useful things. This blog contains useful advice about looking after your garage doors.