The construction team does not require collateral. Only costs for materials. The contract must be confirmed in documentary form. Basically, the work of such building brigades does not need to be controlled. They are not trying to negotiate with the owner, but only perform robots. You solve all your questions and comments about the work with the architect. There is a second option — to hire a construction team «by acquaintance» and start work. This is also a good choice, because if you do not have the opportunity to fork out, then this team will make work cheaper. But here you need time and patience.
Continuous supervision of workers should be carried out so that everything would go according to plan. And do not rely entirely on the persuasion of workers to buy domestic goods, and not imported. After all, they can be mistaken, but in the future it can, it costs money and nerves. Better consult with the opinion of a good specialist. Also, the designation of clear boundaries for workers is important. It is necessary to immediately find out the volume of work, the cost and admissibility of additional costs. It is important to remember — their work cannot be allowed with the flow, because infrequently, but a person loves to hack. Such workers need to understand that you are the main one here. But in addition to visible minuses, you can find pluses. If desired, you can choose a fairly decent construction team, which will perform work quickly, efficiently and for decent money. And in whatever any incidents arise, you need to carefully choose the command. Finally, save, but do not get carried away, because he pays twice. Good choice.