Dusty and dirty curtains can be a health hazard for those who have allergies. There are different cleaning methods depending on your fabrics - wool and cashmere curtains should always be dry cleaned, whereas cotton and silk curtains can be hand washed.
They did a lovely job. The lady arrived promptly, was friendly, and lovely. She spent nearly 5 hours cleaning our house and it was sparkling from top to bottom. I would happily have her back again in a heartbeat