Gidea Park, Romford and Harold Wood all became part of the Transport for London (TfL) network as part of the crossover to crossrail and, as with all stations on the London Liverpool Street to Shenfield Line, part of the transaction to crossrail will include an upgrade to all of the stations.
The website ‘railway technology’ recently spoke about work on Gidea Park Station:
Upgrade works will include installation of two new lifts providing step-free access to the platforms, refurbishment of the existing footbridge and platform extensions to accommodate the new 200m-long Crossrail trains.
Work on the station is expected to be completed by mid-2016, while Network Rail and its contractors have stated that it will take a range of measures to ensure disruption to residents and passengers is minimised.
Starting in June, Romford station is being slightly disturbed by work to extend the western end of the Romford platforms over the River Rom, this is to allow for the 200 metre long Crossrail trains
The work is due to finish in May 2016 and will involve closure of some footpaths in the station area.
Harold wood station has already seen work begin, the timetable of work as listed by the Crossrail website is included below:
February to winter 2015: Platform extensions and installation of new platform lighting
Spring 2015 to early 2016: Construction of new footbridge
Early 2016: Construction of temporary ticket office in station car park and demolition of old footbridge
Spring to summer 2016: Installation of new lifts
All of these are stations that I have used regularly and I hope that the upgrades and new train service will improve this line in the future