Drapers’ Hall – Livery Hall Roof Void

The Drapers’ Hall was rebuilt in 1772. After a duration of two hundred & forty-seven years, the timbers which support the roof required attention. Restore London oversaw the installation of a newly designed tensioning system, along with a bespoke system of repair.

Each truss was surveyed individually, and where the structural integrity was found to be compromised, the Jakob tensioning system was installed. A total of twelve Jakob tensioning systems were installed.

Two redundant service voids were removed & new joists installed to strengthen the floor whilst twenty-four bespoke shake straps were installed. Ten Simpson strong ties were then installed to spread roof loading and eliminate unnecessary loading points onto the historic timbers.

Restore London surveyed & produced a detailed conditional survey of the fibrous plaster ceiling, cornice & wads. A considerable number of the wads were found to be failing. The wad’s & ties suspending the ceiling were strengthened by installing stainless steel wire fixed adjacent to each failed plaster & canvas wad.

Key Facts


Throgmorton Street, London


12 Weeks


The Worshipful Company of Drapers'


Sept 2019


Restore London



“Restore London brought a level of quality craftsmanship and skill that is rare in today’s construction market. They worked collaboratively, bringing their wealth of knowledge to every detail. Their contribution to the National Portrait Gallery can be seen wherever you look in the project. ”

Jamie Fobert CBE

Architect, Jamie Fobert Architects

“It was a pleasure working with the Restore London team. They showed good team spirit coupled by a highly pro-active approach to problem solving & were able to resource the project during unforeseen circumstances, such as the funeral of the late Queen Elizabeth II. The quality of their workmanship was excellent. ”

Steve Baldock

Divisional Director, Curo Construction

“I have used Restore London for a number of projects & find them very reliable & cost effective, with excellent workmanship – which is particularly important when working on a number of the Listed buildings we have here at RHC.”

Stephen Crampton

Project Manager, CBRE

““Restore London made our specified repairs so that they are almost invisible when viewing the room as a whole but are sufficiently different that an educated viewer could see where the mosaic had experienced areas of change when looking in detail. Perfect!” ”

Liz Smith

Chairperson & Regional Partner, Purcell

“Restore London’s works were undertaken to the highest standards. The team’s attention to detail has been second to none & we would recommend Restore London to anyone seeking a strong team who can deliver.”

Louise Priestman BA(Hons)

MArch MA PGCert PPA ARB RIBA – Architect, Purcell

“Restore London cleaned and restored the facades of the building including the courtyard all to the complete satisfaction of our Client’s team. The quality of work was matched by the professional and pro-active approach of the entire Restore team, we would certainly recommend them.”

Brian Hutchison

Board Director, BECK

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