Platform 1 remains unbuilt with no track laid, but space has been allowed for when required in the future.

In August 2019, it was announced that funding had been approved for construction of a fourth platform and a new section of track between Tottenham Hale and Meridian Water to enable up to 8 trains per hour to serve the station at peak times.

[6] All services at Meridian Water are operated by Greater Anglia using Class 720 EMUs.

The typical off-peak service is two trains per hour to and from Stratford which start and terminate at Meridian Water.

Additional services, including trains to and from Hertford East and Bishop's Stortford call at the station during the peak hours.