Project Overview
City Structural Ltd. was commissioned to undertake structural stabilisation works at the CLA London Branch property in Belgravia, London. The project focused on addressing significant masonry cracking and water ingress issues affecting the rear elevation and stairway areas of this historic building.
Challenges:
- Extensive cracking in masonry compromising structural integrity
- Water ingress through deteriorated joints and failed flashings
- Need to preserve the heritage character of the property while implementing effective repairs
Our Solution
Based on a detailed survey and photographic evidence provided by the client, we proposed a remedial scheme designed to restore the structural integrity of the masonry and prevent further deterioration. The key elements of
the repair included:
the repair included:
- Helibeam System Installation: Installation of twin bands of Helibar 60 stainless steel bed joint reinforcement on the rear elevation’s left-hand side arch to laterally distribute structural loads and reduce cracking.
- Helifix Pinning Cem Ties: Six Helifix Cem ties were installed to reconnect the external masonry securely back to the internal structure, enhancing overall stability.
- Crack Repair and Injection: Existing cracks were carefully raked out and injected with thixotropic cementitious grout to restore the masonry’s load-bearing capacity.
- Masonry Repointing and Waterproofing: Affected areas on the rear elevation and stairway were repointed using a mortar compatible with the original stonework. New mastic joints were applied to stonework to prevent water ingress.
- Flashing Replacement: Existing damaged flashings in the stairway areas were removed and replaced with new weatherproof flashings to protect the masonry from moisture penetration.
Outcome:
- The Helibeam reinforcement successfully redistributed structural loads, significantly reducing the risk of further cracking.
- The installation of Helifix Cem ties improved the connection between masonry elements, increasing overall wall stability.
- Water ingress was effectively halted by new mastic joints and upgraded flashings, protecting the building fabric from future damage.
- The repointing and grout injection restored the masonry’s structural integrity while maintaining the building’s historic appearance.
Why Choose City Structural Ltd. for London Masonry Repairs?
Belgravia’s historic properties demand specialist care to balance structural safety with heritage preservation. Our expertise in advanced reinforcement systems like Helibeam and Helifix, combined with traditional masonry repair techniques, ensures:
- Minimally invasive repairs that avoid costly demolition
- Solutions tailored to London’s unique climate and conservation requirements
- Durable results that protect your property’s value and character
If your London property is showing signs of masonry cracking or structural distress, contact City Structural Ltd. for a professional assessment and bespoke repair solutions.
