In view of what you've now revealed, could you not do the inspection and testing yourself? - you can always hire the necessary kit for a day if you don't have it.Thanks, no one asked about my experienceYou could have told us that before. In that case the LA will probably let you do it and then they will issue a Certificate of Completion.
Kind Regards, John
No as I'm not registered or tied in to any 'governing body'.