How long for a home information pack to be done?

For UK residents,really. After your house has been seen by an estate agent, how long till the Home information people do their thing and get back to the estate agents,and the house is ready to sell? Thank you.How long for a home information pack to be done?Mine took 8 days. Estate agent came on the Thursday and the house was advertised and the for sale board put up on the Friday week.