While there are undoubtedly rogue tradespeople, I do think that many people do not have any idea of the true cost of running a business. It is very easy to complain that a 20 minute job was charged at £90 for example, but (1) the tradesman may not have known it was only going to take 20 minutes (2) they have to travel there in their van, and carry out job insured to cover any accidents and liabilities and (3) a lot of time is spent visiting clients, preparing estimates etc., and this is not chargeable. It is the same as comparing the price of a tearoom pot of tea to the cost of a tea bag at home; lots of costs go into the final job. A plumber who charges £70 an hour may only be being paid for 4 hours a day, the rest spent travelling to and from the builder's merchants to collect what is needed, travelling to your home, visiting potential clients at evenings and weekends. Cost in holidays and sickness, liability insurance, running a van etc., and suddenly it is not such a lot of money.