Feel strongly about this business? Want to add a review of 24-7 Sweeping & Counter-surveillance Blackburn? Share your experiences by writing a 24-7 Sweeping & Counter-surveillance Blackburn review and help build a directory of recommended private investigators in Blackburn. Is 24-7 Sweeping & Counter-surveillance Blackburn owned by you?, If so, why not claim it now! This will enable you to update your business details and add search tags.