We use a moisture meter to create a moisture profile, in accordance with the recommendations of BS6576. A moisture profile, combined with our expertise and experience, is usually sufficient, however if there are any doubts, we can do further tests, such as salt analysis.
Rising damp is very commonly misdiagnosed, and this is the biggest reason for the failure of most systems. Any surveyor diagnosing rising damp should at a minimum, be CSRT qualified. A lot of surveyors are not, and therefore do not have the necessary skills to make an accurate diagnosis.