Construction workers built a mock brick wall in the entrance of the Construction Confederation’s London headquarters on Tuesday as part of a campaign to raise the industry’s minimum hourly wage from £6.05 to £10.

The protest coincided with the first round of pay talks between employers and unions. The action was organised by UCATT, the Transport and General Workers Union and the GMB.

The campaign could lead to the disruption of high-profile projects. “If we don’t see some action soon, we’ll start to pull workers off some key sites,” said Dave Smith of the Joint Sites Committee.