Ventrolla Lancashire was awarded the contract to renovate the 630 windows of the Port of Liverpool building, as part of a year long project to restore the property to its original glory. The windows were upgraded using the Ventrolla Perimeter Sealing System (VPSS), which has been tested to 600 Pa, the equivalent to winds of 71 mph, and achieved Class 3 of BS 6375-1.

Richard Ellis, Managing Director of Ventrolla Lancashire, said "At Ventrolla we are committed to renovating historic buildings in a way that allows them to retain their character and be energy efficient. The Port of Liverpool Building is a striking landmark on the Liverpool riverside and we are delighted to play our part in its regeneration.”

The building currently houses companies such as Rathbones Investment Bank, and is the largest project ever undertaken by Ventrolla Lancashire. The building required major restoration works and the internal and external refurbishment is being carried out by by the owner, Liverpool’s biggest commercial landlord company, Downing. Ian Orton, a Director of Downing, said “Ventrolla’s work is part of a £10 million restoration programme that Downing is undertaking to restore the Port of Liverpool Building to its former glory and enhance its appeal as a contemporary office space".