I'm after the same! I found an airtasker charging £55 - too much for the job my sofa requires which can only be washed with water.
Here are his details:
My name is Mark and I offer professional Carpet, Upholstery and Fine Fabrics Cleaning Service based in Dollis Hill Nw10 Previously cooperating with one of the leading carpet and upholstery cleaning companies in central London I’ve learned how to safely and effectively clean various types of carpets, upholstery and other fine fabrics and also how to satisfy even the most demanding customers. My work includes powerful detailed vacuum, pre-spray , stain treatment (*repeated if necessary) and more.. Water extraction cleaning process is done by the professional machines designed especially for commercial and residential cleaning of the carpets, upholstery and fine fabrics. I use only effective and safe carpet/fabric cleaning products and stain removals of the highest quality. Every quote includes FREE deodoriser with fresh clean fragrance and also FIBRE&RINSE product which will leave you carpets and upholstery soft (*correct pH), as dry as possible and with fantastic fresh aroma. I’m able to clean and protect all the types of fitted carpets , rugs, sofas, armchairs, curtains, dining and office chairs etc *Price includes Airtasker Fee £10, Vat and all expenses AS THE MINIMUM CHARGE FOR ANY VISIT IS £55 I’M HAPPY TO OFFER A FREE FABRIC/SOFA PROTECTOR OR EXTRA SINGLE UPHOLSTERY, RUG OR ANY CARPET MEDIUM SIZE AREA CLEANING IN THE PRICE Our office/base: *North London: Dollis Hill Nw10 *South London: Parsons Green Sw6 Kind Regards MARK"