The hall was picked as the most suitable council building in the borough as it is open and accessible to the public.
To allow for space to run and prepare for elections the Peapods Early Learning Centre has moved to a refurbished space that has improved capacity for different age groups elsewhere within Greenford Hall.
Councillor Julian Bell, leader of Ealing Council said: "The redevelopment of Ealing Town Hall is crucial to securing it as the civic heart of the borough. We have had to make some difficult decisions since 2010 and after considering options decided that Greenford Hall was the best building to host the electoral services.
"We have made sure that there will be minimal disruption for the public who need to visit electoral services and that the Peapods Ealing Learning Centre has a large accessible space."
From six to eight weeks in the lead up to elections, Greenford Hall will not be available to hire for meetings and events. This is to allow time and space to process nominations, prepare ballot boxes and votes.
The council are unable to anticipate snap or by-elections but do have plenty of warning of scheduled elections. The next scheduled elections are the Greater London Authority Mayor and Assembly Elections due to be held in May 2020.
A decision has not yet been taken about future election count venues, following the planned closure of Perceval House carpark sometime during 2019.
How to contact electoral services
Ealing electoral services have been fully operational in Greenford Hall from Monday 4 June 2018
The easiest way to contact the election service is online.
Election services can also be contacted by phone on (020) 8825 7777 or by email to firstname.lastname@example.org
Greenford Hall is at Ruislip Road, Greenford, UB6 9QN.
Buses 95, 105 (24 hour), 282, E6, E7 E9 and N7 stop nearby. Other bus routes that serve Greenford Broadway can be found on the TFL website.