Hi Once again I have found a shrub which I can not identify could any help me its about 1m high and a spread if 1m

Spiraea vanhouttii, known as Bridal Wreath

Thank you Bamboo, who ever thought of these names for plants, this one sounds sinister.Regards Pathumwan

Spiraea nipponica 'Snowmound'. It's not arguta, that's already over.

By George, worthy is right, sorry pat... although our bridal wreath here still has a fewer flowers showing, it was really late this year, but the shape of the flowers on your shrub, and the size you've mentioned (which I didn't read initially) indicates snowmound.