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Constructions and modern buildings or skyscrapers

Crack Stitching

Step-by-step guide from Helix Fixings, based in Hertfordshire.

Helix Super Spiro Timber Frame Ties: Welcome

Helix Super Spiro Crack Stitching

Helix super spiro bars and Helix super grout repair and stabilise cracked masonry. The bars can be used in many applications to include lintel and new build bed joint reinforcing.

Helix Super Spiro Timber Frame Ties: Text


Masonry Crack stitching

•    Cut out horizontal mortar joint with a disc cutter to a minimum of 500mm either side of the crack to the specified depth.
•    Clean out slots and thoroughly flush with water
•    Vertical spacing every 4-6 brick courses 300mm – 450mm
•    Depth of slot for single cavity wall, 25mm – 45mm for a solid wall

Masonry Crack stitching

•    Inject super grout using the Helix grout injection gun to the rear of the cut mortar joint

Masonry Crack stitching

•    Push the bar into the grout creating a strong bond around the bar

Masonry Crack stitching

•    Insert super grout to fill the slot 10-15mm from the face allowing you to repoint the mortar bed and make good

Masonry Crack stitching

•    Repair cracks near corners and openings when cracks are less than 500mm from an external corner or an opening at least 100mm should be bent around the corner and bonded into the return wall


•    Cost-effective and permanent
•    Cut to any length on-site
•    Excellent bonding between the bar and grout


Our super spiro bars are manufactured from austenitic stainless steel (type 304)
•    6mm and 8mm widths
•    1 metre, 1.5 metre and 3 metre lengths
•    Helix super grout, non-shrink, thixotropic

Helix Super Spiro Timber Frame Ties: Products

Call Helix Fixings for details

Call us to speak about the crack stitching solution that we supply for construction projects across the UK and US from our base in Hertfordshire

01920 293112

Helix Super Spiro Timber Frame Ties: Text
Helix Super Spiro Timber Frame Ties: Contact
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