Exactly. The homeowners version without consultant input is a twelve page document requiring you to input customer and contractor details, description of the work to be done and what documents show the work, whether planning permission, building regulations and party wall submissions are required and who is dealing with them- you or the builder, what facilities you will provide to the builder, the price, including VAT, how you will pay the builder, either in a lump sum at the end, or in installments, noting the eminently sensible approach to only pay 95% of the price until such time the builder has rectified any defects, working period based on the agreed length of time the work will take, working hours, and the ability of either of you to start court proceedings if required.
All in all, for the cost of around £25, it is a worthwhile and simple document to pick up. Here is a link to the JCT website with subsequent links to both versions of the homeowner contracts.
http://www.jctltd.co.uk/category/home-owner-contracts