Between today, Saturday 11 February and 19 February, there will be no overground trains between Watford Junction Station and Euston Station.
There will also be no Bakerloo line tube trains between Harrow and Wealdstone Station and Queens Park Station.
In addition, between today (11 Feb) and Sunday 12 February, no Metropolitan Line service between Harrow-on-the-Hill and Uxbridge. No Piccadilly line service between Acton Town and Uxbridge.
Replacement bus service will operate between these dates.