There are workshops run through Intreo, however; a lot of these can be quite generic and realistically do not fulfill the level of tailoring and personal touch required to really market you as an asset to an employer.
A CV done by a professional can incorporate aspects of your personality and skills that you may not have noticed or written down yourself. A CV Writer should always have your CV reading clearly, professionally and tidy. Easy to read. Easy to understand. Hard to refuse.