It is possible that some churches may still contain asbestos. It could be anywhere, but it is often found as insulation, lagging, fire protection or in wall and roof linings. It is also found in organ blower motor linings.
You must carry out an assessment and survey to find out if asbestos is present and record the location and condition of any asbestos. If you are not sure, you must presume that the material is asbestos.
Working with asbestos often requires a licence or notification to the appropriate authority. It is strongly advised that only licensed persons engage in any work involving asbestos.