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Case Study

Refurbishment and replacement of heritage windows

London
Situated in the heart of Central London, 55-91 Knightsbridge, Knightsbridge Gate was built in 1902 and was originally designed for the Church Commissioners by architect WD Caröe. This distinguished building was one of London’s first retail promenades and has maintained its sizeable footprint in SW1 ever since.
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Situated in the heart of Central London, 55-91 Knightsbridge, Knightsbridge Gate was built in 1902 and was originally designed for the Church Commissioners by architect WD Caröe. This distinguished building was one of London’s first retail promenades and has maintained its sizeable footprint in SW1 ever since.
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Spanning a staggering 120m in length, and covering an entire block of busy Knightsbridge, this exquisite Grade II listed building has undergone a recent and sympathetic redevelopment. In doing so, it has seamlessly balanced its elegant Edwardian facade, along with its clean-line modern-day interior.

The building’s fresh and considerate redevelopment work undertaken by Cheval Residences will enable it to operate successfully as a mix-use development, including provision for a combination of new and refurbished spaces. The building will now cater for 3,400m2 of retail space on street level, along with 7,800m2 of residential and 3,100m2 of office space on upper levels, offering bijou artisan and high-end boutique outlets, professional space and luxury apartment living.

TRC Windows commissioned for the extensive renovation

In April 2019, TRC Windows was commissioned to deliver the supply of windows throughout this extensive renovation. Over a 14-month period, and completed in 2020, a total of 338 metal, 140 timber and 110 new heritage timber sash windows were successfully reinstated.

Metal windows

In line with the project scope, metal frames and casements were stripped of paint and rust.

Weld repairs were carried out to areas of damage, with new hinges and new sections of steel used where required.

A five-coat Teamac Painting System was used on all frames.

New 4mm GoetheGlas* heritage glass was installed, with applied lead work replicating the original glazing layout.

Timber windows

The timber window repairs were subject to overall draughtproofing and redecoration. These were painted using a Dulux Paint System, and installed with new 4mm GoetheGlas heritage glass.

Heritage box sash windows

Constructed from hardwood timber, the heritage sash windows incorporate single-glazing with a 4mm GoetheGlas heritage glass, and work via a classic weight-and-pulley mechanism. These also include individual solid bars providing the windows with genuine character. Traditional heritage putty was used externally to secure the glazing and enhance the visual aesthetic.

*GoetheGlas is a colourless, drawn glass with the irregular surface characteristic of window glass common to the 18th and 19th centuries. It is used to protect precious, leaded glazing from the elements and other adverse environmental conditions.

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