I think the only real advantage of using an estate agent is the marketing aspect; your property is likely to get more coverage than you might be able to achieve yourself. Other than that, I think they are pretty useless and more and more people seem to be selling successfully without them. Selling via an agent doesn't afford you any kind of protection and if a buyer is going to pull out at the last minute or generally being an awkward so-and-so, they will be irrespective buying via an agent. Have a go at doing it yourself if you've got the resources, you've got nothing to lose (after you've had no obligation appraislagot valuations from at least three local agents!!)