sewing services

Hi! I am interior designer. I am seeking for professional sewing services for curtains including Roman blinds (single and double) and other textile decorative works for my projects. I am based in Surrey. It will be work with various type of materials (linen, silk, velvet, cotton etc.). I will be also seeking the estimate of length of fabrics which i will need to provide to fit the requested type of curtains or accessories so i can order it from suppliers. Thanks