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Welcome To Pro-Point Southwest With over 20 Years Experience in Concrete and remedial repairs. A Menber of The Wall Tie Installers Federation

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07872572639

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admin@propointsouthwest.com


A Member of: The Wall Tie Installers Federation

Southwest Ltd.

What is crack stitching ?


Crack stitching is a reliable, rapid and fully concealed method of reinforcing cracked walls. The stitching bars are extremely easy to install and cause minimal disruption making them a popular choice for many.

If you have a cracked wall and are thinking about crack stitching as a structural repair method then once the job has been completed then your cracked wall will benefit from quick, strong and permanent repair solution


Crack stitching is a method for repairing cracks in masonry. In the old days crack stitching was done by removing cracked bricks or blocks and putting in new ones and then re pointing. To make sure the bond and integrity of masonry is properly reinstated, cracks are raked out and short lengths of stainless steel are embedded into the mortar to transfer load and stresses across the broken joints.


Lengths of HeliBar extending 500mm either side of the crack are bonded into cut slots, normally the mortar beds, with Helibond grout or resin for a reliable and permanent solution. Where cracks are less than 500mm from an external corner or an opening, at least 100mm should be bent round the corner and bonded into the return wall or bent and fixed into the reveal, avoiding any DPC membrane


The Helibeam System uses long parallel lengths of HeliBar reinforcing bars bonded into predetermined cut slots (normally the mortar beds) with HeliBond grout to form deep masonry beams which distribute the building loads. These can be used to resist vertical loads to prevent building subsidence or the horizontal displacement of a bowing wall next to internal stairwell where BowTies

Having drilled clearance holes through the front elevation and into the side elevation masonry, CemTies, loaded into the grout gun nozzle extension, are inserted to the back of the hole and installed simultaneously with the HeliBond grout.


Parallel lengths of HeliBars are bonded into the specified cut slots directly above the existing lintel. Angled CemTies or DryFix ties are installed up through the lintel and into the masonry above the lower HeliBars.


Stainless steel helical bars are chemically bonded into horizontal slots, cut in bed joints, which stitch across the crack. When installed, these bars evenly redistribute tensile forces over the reinforced area to stabilise the structure. On completion, the bars and the grout are concealed, retaining the original character of the wall.

Cracks are repaired with no further damage to the wall, no costly or lengthy re-construction work and no inconvenience to the building’s inhabitants.

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Tel:07872572639