UNIONS have negotiated a pay rise for workers on the new tank farm for Heathrow's Terminal 5 following meetings last week.
After talks between unions GMB and Amicus and main contractor Laing O'Rourke, staff from tank contractors McTay and Motherwell Bridge will all gain an extra 80p an hour.
The row blew up because the employees, who are building the storage tanks for aircraft fuel at the new terminal, were classed as Category 4 rather than Category 1 workers under the Naeci 'blue book' agreement.
The rest of the T5 workforce are classed as Category 1 workers, even though workers on the tank farm have T5 passes and have passed through T5 inductions.
Category 4 workers are paid £10.05 an hour with a £2 bonus. The Category 1 rate is £11.25 an hour with a £2.60 bonus.
Although the unions have negotiated the pay rise, Laing O'Rourke has not agreed to reclassify the workers.
GMB London official Tom Kelly said: 'We have asked the National Joint Council to set up a recategorisation meeting.'