Thomann-Hanry® have cleaned and restored numerous prestigious buildings over the years, but none more so than the one known affectionately as the ‘Old Lady of Threadneedle Street’ – the Bank of England.


Threadneedle St, London EC2R 8AH


Grade I listed building


Portland stone

Surface area

13,000 sq. m.

Project duration

25 days

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Taking just twenty-five days, the Thomann-Hanry® exceptionally skilled team cleaned the whole of the 13,000m2 exterior of the iconic Bank of England building.

As customer service is extremely important to Thomann-Hanry®, the team worked on weekends only to ensure the project at the Bank of England was quick and efficient, thereby minimising disruption. The Portland stone was cleaned by façade gommage® and any damaged stone replaced by masons from the Thomann-Hanry®’s restoration team. Sections of leadwork were also repaired.

“Thomann-Hanry® is at the forefront of the exterior stone cleaning and restoration industry and has been for a number of years. Cleaning and maintenance work is vital to ensure the preservation of a Grade I listed building such as the Bank of England and we are enormously proud to have facilitated the facelift to this iconic city building.”

Mark Styles

Managing Director, Thomann-Hanry® UK

Works took place during weekends across Threadneedle Street, Prince’s Street, Lothbury and Bartholomew Lane, negotiated around austerity protests, the filming of the James Bond movie ‘Spectre’ and hectic city life. Disruption was kept to a minimum throughout the project.

Thomann-Hanry® have since conducted further internal works for the Bank of England. Our interior stone cleaning experts restored and cleaned the Terrazzo walls within the archive room that had been locked away, undiscovered for over half a century.



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