The station was opened by the
London and Birmingham Railway (L&BR) as
Harrow on 20 July 1837 in what was then rural
Middlesex. At the time the station was built, the area was fields and the nearest large settlement was at
Harrow on the Hill about to the south. Wealdstone was a collection of houses at the north end of what is now Wealdstone High Street, about north of the station. The station buildings on the south west (Harrow) side of the station are the older part of the station, located beside what were the fast lines until the platforms were used for the later Euston to
Watford DC line and the main line tracks were re-routed through the previous slow line platforms and new platforms (numbers 5 and 6) to the north east; a new, larger, station building was also erected on this Wealdstone side of the station in 1912. The station footbridge was originally constructed with a full-height central barrier with passengers using the "London" side and railway and postal staff using the "country" side to move goods and mail via lifts which were removed in the early 1970s, leaving two parcel elevators serving the DC line platforms for the remaining postal traffic. On 18 December 1890, a short branch line known as the
Stanmore branch line was opened by the
London & North Western Railway (LNWR, successor to the L&BR). It ran north-east from the main line to
Stanmore. In 1932 an intermediate halt was constructed as
Belmont to serve the developing residential areas locally. The train was known affectionately as the "Belmont Rattler". By the end of the 19th century Wealdstone had developed in size and the station was given its current name on 1 May 1897 to reflect more accurately its location. On 15 September 1952, the passenger service to Stanmore – by then renamed Stanmore Village to avoid confusion with the
Metropolitan Railway's (later
Bakerloo, and now
Jubilee) station opened in 1934 – was withdrawn. Freight traffic (particularly the storage of bananas) continued sporadically until 1964. at Harrow & Wealdstone, 11 March 1956 During the early 1960s, as part of the
West Coast Main Line electrification, the bridge carrying the A409 road (The Bridge/Station Approach) over the railway was rebuilt easing the previous severe road gradients and offering higher clearance over the tracks to allow for overhead catenary cabling. On 5 October 1964, all services on the branch line to Belmont were withdrawn as part of the cuts of the
Beeching Axe. The permanent way north of Harrow and Wealdstone station was removed but the disused platform 7 on the eastern side of the station was left in place as a siding for a further few years until it too was removed. On 24 September 1982, Bakerloo line services to Harrow & Wealdstone ended when services north of
Stonebridge Park were ended. However the closure was short-lived, and the Bakerloo line to Harrow & Wealdstone was reinstated on 4 June 1984 with the station acting as the terminus. In the 1990s major reconstruction of local roads made to by-pass High Street, Wealdstone sent a new road (Ellen Webb Drive) through what remained of the station goods yard and part of the forecourt of the eastern entrance (1917) to the station. ==Accidents and incidents==