On 5 May 2023, work began on a £3 million project to improve the station and install lifts to enable step-free access to all platforms.

[3] The two facing platform lengths at Isleworth are constrained by a bridge over a road at each end and front-seven-doors opening is used for most rolling stock.

Forerunner 8-car slam door trains fitted the platform lengths, as at two other stations along the line.

Those parts of Isleworth north and east tend to be termed Spring Grove.

On Sundays, the service is reduced to hourly in each direction and westbound trains run to and from Woking instead of Weybridge.