Helical Bar Installation in Dorset
Helical bar installation is a proven method for repairing cracked masonry and reinforcing walls affected by subsidence in Dorset. Stainless steel helical bars are bonded into mortar joints across cracks, effectively stitching the masonry back together and distributing loads more evenly.
This technique is less invasive than rebuilding damaged sections and preserves the character of your property — particularly important for period homes across Dorset's conservation areas. Helical bars can be installed horizontally to stitch cracks or vertically to create masonry beams.
We use helical bars as part of a complete structural repair strategy, always addressing the root cause of cracking before carrying out the reinforcement. This ensures the repair is permanent rather than cosmetic.
Why Choose Us for Helical Bar Installation
Minimal Disruption
Helical bars are installed into existing mortar joints with no need to demolish and rebuild.
Stainless Steel
Bars will never corrode, providing a permanent structural reinforcement.
Preserves Character
Ideal for period properties where maintaining original appearance is important.
Versatile Application
Suitable for crack stitching, wall reinforcement, and creating masonry beams.
Areas We Cover for Helical Bar Installation
Select your area for local information and service details.
Frequently Asked Questions
What is helical bar stitching?
Helical bars are stainless steel reinforcement rods twisted into a helix shape. They are bonded into slots cut in mortar joints across cracks, mechanically reconnecting the masonry and preventing further movement.
How effective is helical bar repair?
Helical bar stitching is highly effective and is the industry standard for masonry crack repair. When combined with addressing the root cause of movement, it provides a permanent structural solution.
Can helical bars fix subsidence cracks?
Yes, helical bars are commonly used to repair cracks caused by subsidence. However, the underlying cause of subsidence must be addressed first — otherwise the cracks may reopen. We always investigate and treat the cause before stitching.
How long does helical bar installation take?
Crack stitching with helical bars is typically completed in one to three days for a standard property. The process is quiet and clean compared to demolition and rebuilding.
Are helical bar repairs visible?
Once installed and pointed over with matching mortar, helical bar repairs are virtually invisible. We take care to match mortar colour and joint profile to your existing brickwork.
What size helical bars do you use?
We typically use 6mm or 8mm diameter bars, with lengths varying from 500mm to 1500mm depending on the crack pattern and structural requirements. Bar selection is based on engineering calculations specific to your repair.
Related Services
Structural Crack Repairs
Expert diagnosis and repair of structural cracks caused by subsidence, settlement, or ground movement.
Structural Wall Tying
Reconnect separating walls with professional wall tie installation and replacement services.
CWS Masonry Reinforcement
Cavity wall strengthening and masonry reinforcement to restore stability to weakened walls.