Crack Stitch Repairs

Crack stitch repairs are a highly effective method for restoring the strength and stability of damaged brickwork, ensuring your property remains safe and structurally sound. This technique is particularly valuable for addressing cracks caused by subsidence, thermal movement, or general wear and tear over time.

The process involves the strategic insertion of helical bars, often referred to as crack stitching bars, into carefully cut mortar joints along the affected area. These bars, typically made from stainless steel, are bonded in place using a high-strength resin or masonry grout, creating a reinforced connection that distributes stress evenly across the brickwork. Unlike traditional methods that may require extensive rebuilding, crack stitching is minimally invasive, preserving the original appearance of the structure while providing long-lasting support.

A stitching kit, such as a heli bar kit, includes all the necessary components for the repair, making it accessible for both professionals and DIY enthusiasts. The process begins with assessing the crack and preparing the mortar joints to accommodate the bars. Once inserted, the helical bars and resin work together to lock the brickwork in place, preventing further movement and deterioration. This method, known as brickwork stitching or brick stitching, is ideal for both minor cosmetic cracks and more serious structural issues.

Whether you’re dealing with a single crack or widespread damage, crack stitch repairs offer a cost-effective, durable solution. By reinforcing the brickwork from within, this technique ensures your property remains secure, maintaining its value and aesthetic appeal for years to come. If you’re considering a repair, a crack stitching approach provides peace of mind with minimal disruption.

Read below for a guide on how to complete these repairs. 

Here are the step-by-step instructions.

Below you will also find

• A helpful video
• A collection of detailed application-specific method statements

Note: Typically, vertical spacing between slots should be every 4 to 6 brick courses. If you’re uncertain, consult a structural engineer.