A spokesman for the company said that the new stage would have to be designed, manufactured and installed.
He said: "That could be quite a lengthy process, but we hope it will be ready in time for the 2008 Capital of Culture."
He revealed that a temporary pontoon was being modified in Rotterdam. A bridge to link the pontoon with the Pier Head is being built in Liverpool's West Langton Dock.
The former Mersey Ferries' Pier Head berth was destroyed on March 2 by a combination of extreme weather and low tides.
Transport authority Merseytravel, which owns Mersey Ferries, said that until the temporary pontoon arrives, passengers who miss the final 4.45pm sailing to Seacombe will be able to use their tickets on Merseyrail from James Street to Hamilton Square where a replacement bus service will run to Seacombe.
The Pier Head landing stage, destroyed last month, opened in 1972, replacing the century-old Princes Dock landing stage.