Non-standard, large double glazed patio door shattered. I rang late one Friday afternoon and the door was measured up by them early the very next morning (Saturday) and the glass ordered first thing Monday. Fitted 3 days later. Amazingly fast service and first rate customer service throughout. Reacted just how I needed, as the work was done for my vulnerable parent living alone in Southend, on the other side of the country from me. Very understanding company who I would not hesitate to wholeheartedly recommend.