The Shard is to undergo glass panel replacement work after the development manager said it discovered scratches and cosmetic damage sustained during installation.
A spokesman for the project’s development manager said between 25 and 50 panels had been found to be “cosmetically damaged” during the installation process, as inspections were carried out in the run-up to practical completion.
The Shard - built by Mace on a £426m contract that was completed in 2012 - contains over 11,000 glass panels.
Sellar Development Services said it had “exacting quality standards, and as the panels failed our rigorous quality control protocols on cosmetic grounds, they are simply being replaced over the next few months.”
“This replacement is normal in any construction project, and forms part of the natural process of snagging across the project as the building is being handed over from the contractor.”
The skyscraper, which is the tallest in Western Europe, was only practically completed in November.
A Mace spokeswoman insisted the replacement was “routine”, and only affected “a very small percentage of the amount originally installed”.
“Damage to glass during construction is always factored into a project.”
The Shard reiterated that there would be no impact on its operations or those of its occupiers.