Hi Peter
We used a company called Kover it, the covers are great and certainly stand up to the Spanish climate after we had bought various other covers which rotted in no time.
Kover-it Awnings Reading, Ladds Garden Centre, Bath Road, Hare Hatch, Reading Berkshire, RG10 9SB, United Kingdom 0118 940 6095
We would certainly recommend this company they were both helpful in explaining what we needed for the sun etc, and the service was great.
Sandy