I ordered back in May and am still waiting for Openreach to install ducting from the chamber on the other side of our close. According to roadworks.org that will start tomorrow and the latest go live date from BP is 17th December. I do not think that my situation is typical though.
Two visits, (that breaking in mind that there is no 'other' issues in getting the tubing from the manifold to the property) The first to provide a CSP (customer splice point) and blowing the fibre from the DP to the CSP. Once this is done. you'll get an appointment for the engineer to come and do the physical fit in to the property.