There have been a fwe discussions on this subject before
here. If that link doesn't work, just click on the search facility on the menu bar and search for 'deeds'.
My deeds were lost by a solicitor last year, the crucial documents to sell the house were replaced and that sale is now coming to a close. it's a hassle that I have difficulty finding someone to do the work for me. I am not an expert in that area but there are at least three gurus on the subject that post here regularly!