Tower crane drivers are planning a series of strikes starting with a one-day stoppage later this month.

The action could halt major sites across the country with London hardest hit.

Drivers at leading crane rental company Wolffkran, represented by Unite, have voted to start a series of 24-hour strikes on Tuesday January 27 then every fortnight after that.

The Enquirer understands around 90 drivers are union members at the crane rental giant.

A crane driver source said the dispute centred on a lack of pay rises over the last three years.

He said: “The drivers feel they aren’t being offered a fair wage for what is a vital job.

“Any strike action would have a major impact because we wouldn’t expect others to cross a picket line.”

The Enquirer understands further talks with Wolffkran are due before the first planned strike.

The source said: “Stopping work is always a last resort so hopefully a deal can be struck.”