High Level Maintenance Ltd recognises the importance of using lime mortar in the restoration of historical structures. Lime mortar offers many advantages over modern cement. Lime mortar is softer, more porous and is flexible, thus allowing the structure to accommodate minor movements over time. It is permeable allowing any moisture and dissolved salts to freely move into the joints where water can readily evaporate and the salts crystallise without causing significant harm.
We also regularly use Helifix HeliBars to repair defective masonry. These are fully concealed once installed and their use avoids the need for expensive and disruptive taking down and rebuilding. It also means that there is little disruption to the building’s fabric or occupants.