We have specialist survey equipment that allows us to see into closed off areas such as wall cavities. If you suspect that the walls of your property are not properly insulated or that work has not been completed in areas that have become closed off from visual inspection we can see into these areas for you. This will involve the drilling of small diameter holes so we can insert our inspection equipment into the closed off space. This approach limits the potential damage that might otherwise be required when opening up a closed off space. To our knowledge we are the only company offering the service at this time.