Twistfix

Crack Repair

Masonry crack repair products restore strength and stability to cracked walls. Use helical bars as retrofit brick rein­­­for­­­cement. They enhance the tensile, flexural and shear strength of brickwork. Use a brick filler to seal walls and reinstate compressive strength. Sealing the cracks protects against water intrusion and frost damage.

Cracks occur when parts of a building structure move. The displacement may be historic, cyclic or ongoing. Movement is often the result of changes in the moisture content of brickwork or the ground that supports it. Temperature variations, chemical reactions, vibrations and overloading also cause movement-induced cracking.

Once a wall fractures, it no longer acts as a single structural unit.

Typical defects that may trigger cracks include the following.

  • Ground movement. Subsidence, landslip or heave.
  • Lack of support. Failure of a foundation, lintel or masonry arch.
  • Insufficient restraint. Lack of wall ties or straps.
  • Resizing. Expansion or shrinkage due to thermal or moisture variations.
  • Rusting metals. Corroding wall ties, hoop irons or fixings.

Identify and eliminate the cause of cracking. It is vital for a successful masonry repair scheme.

Crack repair strategies fall into the following categories.

  • Sub-structure repairs for foundation issues.
  • Superstructure reinforcement for above-ground building defects.

Sub-structure repairs may include underpinning or piling.

Superstructure strengthening may include tying or reinforcing the walls. The structural repairs often involve inserting helical bars. Use them to form retrofit brick beams or to stitch cracks. Replacement wall ties and restraints, bolster cavity walls or wall junctions. Use resin injection products to fill and seal cracks in brickwork.

First, resolve the source of faults or weaknesses. Then, fill the cracks and reinforce the fractured masonry. The combination will restore structural integrity.

Shop online for masonry crack repair products. Discover great prices for crack stitching bars, injection resins and structural repair supplies. Combine various tying and strapping systems. It will strengthen brickwork and resist damage from building movement.

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Brick Stitching Kit - 8 mm helical bars

Brick Stitching Kit - 8 mm helical bars

Brick Stitching Kit with everything needed to reinforce cracked brick, block or stone walls. 1 m long, 8 mm diameter heavy-duty helical bars in a 10 bar kit
Price excl. VAT
£114.00
Price incl. VAT
£136.80
Crack Sealer Plus

Crack Sealer Plus

Crack Sealer Plus is a pure injection filler designed to bond those hard to fill narrow cracks in bricks, blocks, render and concrete. Small flexible nozzles enables masonry cracks as fine 2mm wide to be filled and sealed.
Price excl. VAT
£45.13
Price incl. VAT
£54.16
Masonry Repair Grout

Masonry Repair Grout

Masonry repair grout for bonding helical stitching bars into cracked walls. High performance adhesive grout used for structural repairs and reinforcement. Tested at the BRE. Yield 3L
Price excl. VAT
£39.80
Price incl. VAT
£47.76
Crack Stitching Bars 6 mm x 1 m - 10 Pack

Crack Stitching Bars 6 mm x 1 m - 10 Pack

6 mm x 1 m crack stitching bars strengthen cracked masonry walls. These high-quality stainless-steel helical bars are in stock and sold in packs of 10 at low trade prices.
Price excl. VAT
£29.90
Price incl. VAT
£35.88
Brick Pin Fixing Kit

Brick Pin Fixing Kit

A brick pin fixing kit for repairing cracks in walls. These masonry stitching pins are supplied for tying brick buildings, bridges and tunnels. Kit includes 10 heavy duty helical tie bars.
Price excl. VAT
£161.50
Price incl. VAT
£193.80
Wall Anchor Kit - 910mm Spiral Fixings - 10 Ties

Wall Anchor Kit - 910mm Spiral Fixings - 10 Ties

Wall Anchor Kit with extra-long drive-in wall ties. Quick and easy to fit chemical-free structural connectors, no material compatibility issues. 10pcs 910mm ties, SDS Tool and 1m drill bit
Price excl. VAT
£205.58
Price incl. VAT
£246.70
Helical Bars 7M Long Kit

Helical Bars 7M Long Kit

Helical bars in a kit for retrofit masonry reinforcement. High tensile 6mm x 7m reinforcing bars, grout and fixing kit for structural repairs or for forming window-spanning brick beam lintels
Price excl. VAT
£219.50
Price incl. VAT
£263.40
Crack Stitching Kit

Crack Stitching Kit

Our professional crack stitching kit has everything needed to strengthen cracked walls. The kit contains ten 6 mm helical bars, high-strength grout and a set of installation tools.
Price excl. VAT
£89.95
Price incl. VAT
£107.94
Brick Stitching Bars 8 mm x 1 m - 10 Pack

Brick Stitching Bars 8 mm x 1 m - 10 Pack

8 mm x 1 m brick stitching bars reinforce cracked brickwork and masonry. These heavyweight helical bars are in stock and sold at low trade prices in packs of 10.
Price excl. VAT
£44.90
Price incl. VAT
£53.88
Structural Repair Ties

Structural Repair Ties

Structural repair ties are extra long 12 mm diameter drive-in helical wall ties that reinforce vulnerable masonry walls. Lengths 910 mm (36") to 1670 mm (66") in 150 mm (6") increments. Pack of 10.
Price excl. VAT
£153.98
Price incl. VAT
£184.78
Crack Stitching Rods 6 mm x 1 m - 100 Pack

Crack Stitching Rods 6 mm x 1 m - 100 Pack

Builders pack of 6mm high tensile helical bars for stitching and reinforcing areas of fractured brickwork - Length 1m - Pack of 100 pieces
Price excl. VAT
£279.50
Price incl. VAT
£335.40
Long Crack Stitch Bars 6 mm x 2 m - 10 Pack

Long Crack Stitch Bars 6 mm x 2 m - 10 Pack

6mm crack stitching bars for strengthening cracked masonry walls. CE and UKCA compliant helical bars. High-tensile stainless-steel retrofit reinforcement - Pack of 10
Price excl. VAT
£59.98
Price incl. VAT
£71.98
Helical Stitching Bars 6mm x 1m - 480 Multi-Pack

Helical Stitching Bars 6mm x 1m - 480 Multi-Pack

Helical stitching bars for strengthening masonry walls. These high-tensile helical bars are manufactured from corrosion resistant stainless steel. 6mm x 1m helix x 480 pieces.
Price excl. VAT
£1291.20
Price incl. VAT
£1549.44
Crack Stitching Grout x 48

Crack Stitching Grout x 48

WHO-60 is a high performance grout designed for bonding helical bars into masonry walls. Fully tested at the BRE, this polymer modified grout is sold on pallets of 48 tubs, sufficient for fixing 480 stitching bars.
Price excl. VAT
£1632.00
Price incl. VAT
£1958.40
Boxed Crack Stitch Kits - Wholesale

Boxed Crack Stitch Kits - Wholesale

Boxed crack stitching kits for merchants / resellers. A versatile repair kit with everything needed for the structural repair of fractured brickwork and masonry walls - Quantity 6 boxes
Price excl. VAT
£509.40
Price incl. VAT
£611.28
6 mm x 7 m Helical Reinforcing Bar - 5 Pack

6 mm x 7 m Helical Reinforcing Bar - 5 Pack

6 mm x 7 m long helical bars. The 6mm stainless-steel reinforcing bar is the standard size rod used for most masonry repair applications. Pack of 5
Price excl. VAT
£123.50
Price incl. VAT
£148.20
Lateral Restraint Wall Tie Kit

Lateral Restraint Wall Tie Kit

Lateral restraints in a kit for restraining a bulging masonry wall by tying it back to structural flooring members. Repair kit includes 5 lateral restraint ties, resin, drill bit and setting tool.
Price excl. VAT
£181.36
Price incl. VAT
£217.63
Lintel Repair Kit

Lintel Repair Kit

A lintel repair kit for professional masonry reinforcement. Helical bars span window openings up to 2.5m wide to support brickwork above. Buy a 'Complete Kit' or a '14m Bars & Grout Only' kit.
Price excl. VAT
£97.50
Price incl. VAT
£117.00
Retrofit Wall Connectors - 10Pk

Retrofit Wall Connectors - 10Pk

Retrofit Wall Connectors are long-series, 12mm diameter spiral wall ties that are driven deep into masonry to form a mechanical connection that needs no cement, grout or resin. Available 610, 760 and 910mm - 10Pk
Price excl. VAT
£123.08
Price incl. VAT
£147.70
Arch Repair Kit

Arch Repair Kit

Arch Repair Kit has everything needed the reinforcement of soldier courses, brick arches and stone lintels. Stainless steel reinforcement bars form masonry beams and brick ties securely pin arches into the reinforced zone
Price excl. VAT
£159.50
Price incl. VAT
£191.40
Bulging Wall Restraint Kit

Bulging Wall Restraint Kit

Lateral restraints in a kit for restraining a bulging wall by tying brickwork and masonry back to structural flooring members. Repair kit includes 5 lateral restraint tie bars
Price excl. VAT
£181.36
Price incl. VAT
£217.63
Polyester Injection Resin

Polyester Injection Resin

High performance 2-part polyester resin in styrene. Cost effective masonry injection adhesive for fixing, tying and anchoring in concrete, brick and stone. Co-axial tube size 380ml Ratio 10:1
Price excl. VAT
£8.37
Price incl. VAT
£10.04
Rustic Red Injection Mortar for Cracked Bricks

Rustic Red Injection Mortar for Cracked Bricks

Colour-matching repair mortar for filling cracks in Rustic Red Brick. Mix pigment with water, injection-fill 3-10mm wide cracks – 250g
Price excl. VAT
£32.80
Price incl. VAT
£39.36
Crack Repair Mortar for Old London Stock Bricks

Crack Repair Mortar for Old London Stock Bricks

Colour-matching injection mortar for filling cracks in Old London Stock brickwork Mix pigment with water, injection-fill 3-10mm wide cracks – 250g
Price excl. VAT
£32.80
Price incl. VAT
£39.36