Abseiling engineers work is essential to ensure structural stability of the historic structure says Exeter City Council.
Over a period of 3 months, businesses along Exeter's Quayside are facing intermittent closures for vital work to take place in response to a stark warning over the structural stability of the wall.
A 105 meter stretch of wall, according to a structural survey last month, is in desperate need to repair. A planning application for repairs has been submitted by Exeter City Council, described to be "overdue and entirely necessary".
The work has been confirmed to begin later this month with abseiling engineers suspended over the structure. Masonry repairs, structural reinforcement, instillation of "anchors" ans d the relacement of rock-fall netting will be included in the work.
The businesses based in cellars are able to remain open for the majority of the estimated 11 weeks however, will need to close for some occasions. These cellar businesses include various shops and cafes including Spangles, The Coffee Cellar, The Craft Cellar and Sundays.
Cllr Ruth Williams, Lead Councillor for City Management, said the work was essential to maintain the structural integrity of the cliff and quayside.
She said: "We apologise for any inconvenience these works may cause. We are doing everything possible to notify local residents and businesses about the works.
"Our contractor will make every effort to keep disruption to a minimum and as far as possible the Quay Cellar businesses and quayside footpath will remain open throughout the works. However, there will be some closures required but we will try and limit these."
The works will begin on Monday, February 19 and are expected to last 11 weeks.