Our Technology
HelicalBar™ R304
High-tensile stainless steel masonry reinforcement that makes cracked walls stronger than they were before — bonded into mortar joints, completely concealed.
Our Technology
HelicalBar™ R304
High-tensile stainless steel masonry reinforcement that makes cracked walls stronger than they were before — bonded into mortar joints, completely concealed.
The reinforcement that makes cracked walls stronger than new
HelicalBar™ R304 is a high-tensile stainless steel bar bonded into the mortar joints of cracked masonry walls. It's the technology behind Buildfix's wall crack repair and crack stitching solutions. It doesn't just bridge the crack — it extends several metres beyond it in both directions, tying the damaged section back to solid brickwork. What was the weakest point in the wall becomes the strongest.
The bars are roughly 100 times tougher than the bricks they’re bonded to. Triple-finned, 6mm helix profile, grouted into slots cut along the mortar joints. No bricks removed. No walls knocked down. Once the joints are filled and colour-matched, you won’t know the repair happened.
Cracks keep coming back?
Get your walls checked out. It’s free, and you’ll know exactly what’s causing the cracks.
Behind the performance
Tap any spec to learn what it means for your home.
304 Stainless Steel
Material
Grade 304 stainless steel is the same material used in kitchen sinks and surgical instruments — chosen because it won’t corrode inside your wall. The bars stay at full strength for decades, long after the grout has cured.
Behind the performance
Tap any spec to learn what it means for your home.
304 Stainless Steel
Material
Grade 304 stainless steel is the same material used in kitchen sinks and surgical instruments — chosen because it won’t corrode inside your wall. The bars stay at full strength for decades, long after the grout has cured.
See the difference
Real walls. Real repairs. Cracked masonry reinforced with HelicalBar™ R304.
Structural fix.
Guaranteed to last.
What makes HelicalBar™ R304 different from filling cracks and hoping for the best.
HelicalBar™ R304 is roughly 100 times tougher than the bricks it’s bonded to. High-tensile stainless steel bars span the crack and extend several metres beyond it, reconnecting the masonry as a single unit. The weakest point in the wall becomes the strongest.
Ready for a wall crack repair that structurally reinforces your walls? Book your free assessment to get started.
Real homes. Real repairs.
Cracked walls reinforced with HelicalBar™ R304 high-tensile stainless steel bars.
HomeownerStrathfield, NSW
Heritage Home Repaired Twice, Same Team
When new cracks appeared in this 150-year-old Strathfield home, the owner didn’t hesitate — they called Buildfix again. Buildfix had already fixed the front of the house years earlier. This time, the team tackled the rear.
HomeownerRandwick, NSW
Hidden Downpipe Behind 10 Years of Cracks
A neighbour’s redirected downpipe quietly washed out the soil beneath this Randwick home for over a decade. Buildfix found the cause, stabilised the ground, and reconnected the cracked walls — no demolition required.
HomeownerWindsor, VIC
Wall Cracks Traced to a Hidden Void
Every expert said “seasonal movement.” But the cracks kept spreading — including right above a child’s bed. Buildfix found the real cause: years of driveway runoff had quietly washed out the ground beneath the walls.
HomeownerSt Kilda, VIC
Bungalow Repaired After 2021 Earthquake
After the 2021 Melbourne earthquake left an 80-year-old California Bungalow with cracked arches and shifting foundations, Buildfix repaired the damage in just three days — without removing a single brick.
“All of the Buildfix team have been easy to communicate with. Everyone was punctual and communicated arrival times well ahead of arrival.”
Scott HolmesMelbourne, VIC
“All of the Buildfix team have been easy to communicate with. Everyone was punctual and communicated arrival times well ahead of arrival.”
Scott HolmesMelbourne, VIC
“All of the Buildfix team have been easy to communicate with. Everyone was punctual and communicated arrival times well ahead of arrival.”
Scott HolmesMelbourne, VIC
“All of the Buildfix team have been easy to communicate with. Everyone was punctual and communicated arrival times well ahead of arrival.”
Scott HolmesMelbourne, VIC
Questions?
Our team is here to answer any questions you may have Monday – Friday 8am to 4pm AEST. Give us a call on 1300 854 115.
