‘Doing a foreigner’ is what tradesmen call a job which is done ‘on the side’ and usually for cash in hand. Previously it was a bit of a loophole in the law, excluding tradesmen from any liability if the consumer wasn’t happy with their work. However, it is generally the case nowadays that you would expect the same rights with regard to care and skill, timescale and cost, as if you had the work done legitimately. The best policy is to ensure the individual you are hiring is aware of his responsibilities at the outset, if he does a runner you’ve probably got off lightly!

How can I resolve the situation?

What about contracts for services?