Tyler is usually used for someone who tiles a roof. It was also 'tiler' which not only is the person who covers building roofs with burnt clay tiles but also a tile layer or a tile maker.
The Penguin Dictionary of surnames (1979) says it's chiefly a Leicestershire and Lincolnshire surname.
Sir William Addison in his book 'Understanding English Surnames' refers to tile hung cottages in Kent and Sussex and references the surnames Hillier and Hellier the Old English word 'helion' a tiler as being similar.