14:31 Jun 17, 2015
Are these synonymous terms? No, not entirely, although they may be.
Or is there a meaningful difference? Yes, there is, though not necessarily.
Explanation. In the global context of an insurance claim for home damage and repairs, the term "leakage test" would tend to suggest testing one specific area, piece of equipment or system within the property. A "leakage survey" would tend to suggest that the whole property is to be surveyed for leakage.
Questions which are raised might include the nature of the leak in question (gas, liquid) but also where it is supected that the leakage may be (on the land, in buildings). To or from land? To or from buildings? "Leakage", "leaking" and "leak(s)" would not be used in the same way. Further, it would be helpful to know at what stage in the insurance process this is happening. Lastly, it would also be helpful to have information about the specific document, with an extract of the original text in which the term/epxression appears (invoice, report, correspondence).
When further details are asked for, it is with a view to providing suggestions which colleagues aim to make as pertinent as possible. | 
peer agreement (net): -1
