Management at the Dubai operation of Laing O'Rourke has persuaded workers on the world's tallest tower to return to work after a riot last week over pay.
About 2500 workers on the Burj Dubai, which is to be be more than 800 m high, and surrounding developments went on the rampage last Tuesday evening.
They attacked security guards before breaking into temporary offices, smashing computers and destroying cars and construction machines. The damage was put at $1m (£571,000).
Thousands of Al Naboodah Laing O'Rourke workers at Dubai Airport also laid down tools in support of the workforce at the Burj Dubai.
The workers are understood to want improved pay. Carpenters earn $7.60 (£4.30) a day, while labourers earn $4 (£2.30) a day.
A spokesperson for Al Naboodah Laing O'Rourke said the riots were "a consequence of misinformation and misunderstanding". He said work restarted on the tower last Thursday and at the airport last Saturday.
Laing O'Rourke Utilities is facing an investigation in Ireland over claims that almost 100 Serbian workers were underpaid up to *40,000 (£28,000) each on a *3bn (£2bn) renewal of the electricity network.