There certainly are repair companies around the UK who could presumably sew a similar patch over the hole. However it might depend on the cost and condition of the rest of the awning and what caused the hole. A gash in an awning from a slipping pole is much more common that a completely missing piece! Does it indicate that it has been stored within reach of mice, or it's just generally failing? You might find a quick ebay search will bring up other options, currently there are 2 nearly new Turino awnings for under 100.00 which still have the factory fresh creases in, along with a variety of air or poled porch awnings, so might provide a viable alternative to a repair. Hope you are enjoying the sunshine!