Rayner Rowen Construction has taken over from Buckingham Group at the Anfield Road Stand site.
Liverpool Football Club (LFC) said it had taken control of the £80 million construction site, adding Rayner Rowen will now produce a revised project completion programme.
An update on capacity and phasing will be published “as quickly as possible”, said the club.
Several other contractors have also been appointed to the scheme, which is said to be in the ‘final stages’.
LFC said it would seek to employ as many of Buckingham’s existing sub-contractors as it could.
“Some workers have returned to the site to continue some immediate works,” LFC added.
Buckingham Group, a £700 million turnover business, formally entered administration this week after 36 years of trading, resulting in the loss of nearly 450 jobs.
Kier Group agreed to acquire all the Group’s rail assets, and its HS2 contract, for £9.6 million, safeguarding 180 jobs.
But Buckingham’s Building, Civil Engineering, Demolition, Major Projects and Sport & Leisure divisions could not find new owners.
The Anfield Road Stand expansion began in September 2021, aiming to increase spectator capacity from 54,000 to 61,000.
The development had previously been on track for completion by the start of the 2023-24 season.
When finished, it will surpass Arsenal’s Emirates Stadium by holding the third highest capacity in the Premier League.
The news comes amid reports Swansea Council is also in talks with alternative contractors for its Copr Bay scheme in Wales where Buckingham Group was the main contractor.
“Our thoughts are with all those employees and contractors who face uncertainty at this time,” said LFC.
“Working with Rayner Rowen Construction, we will seek to engage as many of Buckingham’s existing sub-contractors going forward as we are reasonably able to.”
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