Staff at Heathrow Express are staging a 48-hour strike from today (Monday).
The RMT union confirmed the start of industrial action in response to a pay offer that was overwhelmingly rejected by members.
The walkout comes after “multiple attempts” to resolve the dispute, according to the RMT.
However, the Heathrow Express website shows no sign of service disruption today.
The union said it “remains open to further negotiations” and called on Heathrow Express management to improve their offer “and avoid ongoing disruption”.
General secretary Mick Lynch said: “Our members at Heathrow Express have made their position clear with a strong mandate for action. They are determined to secure fair pay and better working conditions.
“Heathrow Express management must now recognise the serious concerns of the workforce and return to the table with a meaningful offer.”
A Heathrow Express spokesperson said: “It is incredibly disappointing that RMT is planning strikes, but our well-planned contingencies are ready to go.
“Schedules will continue as normal, and we will keep our passengers moving safely and efficiently. There will be no disruption to Heathrow Express services as a result of this action.”
Picture: Hugh Llewelyn