Prepare the slots
Form the selected mortar-bed slots across the crack to the specified repair detail.
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Masonry repairs · Project case studyHelibar Crack Repair
Helibar Crack Repair
Case Study
A closer look at masonry assessment, preparation and helical reinforcement, with project photography and an explanation of the crack-stitching process.
- Cause considered first
- Repair detail matched to the wall
- Concealed reinforcement
Before the repair
Understand the crack and the surrounding masonry
The direction and extent of cracking, the wall construction and nearby openings help inform a repair proposal. The assessment also considers whether movement is continuing and whether further structural advice is required.
Crack stitching is used where suitable reinforcement can reconnect masonry. The cause of movement and any defective support must be considered alongside the visible crack.
- Specialist
- Atruss Preservation
- Repair type
- Masonry crack stitching
- Reinforcement
- Helical stainless-steel bars
Project photography
Helibar crack repair gallery
View the available project photographs. Select an image to see it at a larger size.
The repair sequence
How crack stitching is approached
The stages below explain the usual sequence. The dimensions, spacing, bar arrangement and materials must follow the repair specification for the individual wall.
Clean the masonry
Remove loose material and prepare the slots for the chosen structural grout.
Install reinforcement
Bed the helical bars into the grout and complete the specified grout cover.
Make good
Finish the repaired joints and agree any necessary inspection or monitoring.
Project-specific detailing: No bar spacing, crack diagnosis or installation dimensions are inferred from a photograph alone.
Repair scope
Reinforcement and the underlying defect
A visible crack may be associated with a lintel, an altered opening or movement elsewhere in the building. Crack stitching may form part of a wider repair, rather than the whole solution.
- Consider the pattern and history of the crack
- Review adjacent openings and support
- Specify reinforcement for the wall construction
- Make good the repair with a suitable finish
Useful photographs for an enquiry
Send a wide view of the elevation, a close-up of the crack and photographs of nearby doors or windows. Include its approximate width and whether it has changed.
Send details and photosMore information
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Concerned about a crack in your property?
Talk to Atruss Preservation about the masonry and the next step.