STD Check London Address: Suite 1, 117A Harley Street, Marylebone, London, W1G 6AT Website: www.stdcheck.london/ FB: www.facebook.com/stdchecklondon/ IG: www.instagram.com/stdchecklondon/ Phone: +4420 3745 7523 Email: info@stdcheck.london A private sexual health clinic in London offering same day STD testing and STI screening.