Requesting curtain cleaning service for home in the UK

I'm looking for a professional to thoroughly clean a set of curtains for my home. The curtains are medium-weight fabric, installed in two rooms, and have collected dust and light stains over the past year. I would prefer a thorough vacuuming followed by steam cleaning or spot stain treatment, ensuring fabric-safe products are used. Please assess whether cleaning can be done on-site or if removal is required, and share any preparation steps I should take. I value punctuality, clear communication, and a careful approach to avoid fabric damage. The job should be completed within a few hours, with flexibility for scheduling on a weekday morning.