Very quick to get a salesman on site and to take an order, installation engineers seemed to know what to do but after the first rain the roof still leaked. Upon inspection I could see that the water ran off the tiles and missed the guttering. Also drain pipes leaked and water ran down the door. After numerous phone calls an engineer visited and said that they needed to get materials to put the incorrect installation put right. After various delays we arranged to be at home and no one turned up. I called the office at 16.10 and was told engineer stuck in traffic. No further contact from the office and another day wasted. I will have to contact the office tomorrow and waste another day. The office staff don't seem to realise how long it takes for engineers to get around the country.