Why Choose Northwest Wall Ties
We are a proud family-run business, operated by a dad-and-lad team, Warren & Warren, with a small team of installers who are all family. We do not subcontract our work, which means we keep full control over the standard of every job from start to finish. We keep you updated clearly before and throughout the job, and we are with you every step of the way until the guarantee is signed off and your sale is completed.
We also take the stress out of house sales by contacting estate agents on your behalf to arrange access for surveys. We are known for our 5-star reviews, dustless drilling, fast turnaround mortgage-ready wall tie reports, and detailed reports guaranteed back within 24 hours. With lower overheads than larger firms, we are able to keep our pricing very competitive while still delivering a professional, reliable service.

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What Are Cavity Wall Ties?
We carry out professional wall tie inspections and replacement across the North West, installing stainless steel remedial ties to restore stability and protect the structure long term.

Wall Tie Replacement Specialists!
We carry out professional wall tie inspections and replacement across the North West. Using specialist equipment, we assess the condition of existing ties and install new stainless steel remedial ties where required, in line with current standards.
The cost of the survey is deducted from any remedial works carried out by us!

Horizontal Cracking
Horizontal cracks usually appear in the mortar joints and are commonly caused by the expansion of corroding wall ties. As the steel rusts, it expands and forces the surrounding masonry apart.
Bulging Masonry
Bulging or bowing walls occur when wall ties fail and no longer restrain the outer leaf. In severe cases, this can lead to instability and potential collapse if left untreated.
Window / Door Opening Distortion
Gaps or distortion around windows and doors can occur when the wall loses stability. Failed ties allow movement, which puts pressure on openings and causes misalignment.
Roof Edges Lifting
In some cases, expansion and cracking can affect how loads are distributed. This can result in lifting at roof edges or gable movement due to the outer leaf no longer being properly restrained.
Stepped Cracking
Stepped cracking follows the mortar joints in a stair-step pattern. This is a strong indication of wall tie failure, where expansion or movement is transferring stress through the brickwork.
Signs of Wall Tie Failure!
Horizontal Cracking: Horizontal cracks usually appear in the mortar joints and are commonly caused by the expansion of corroding wall ties. As the steel rusts, it expands and forces the surrounding masonry apart.
Window / Door Opening Distortion: Gaps or distortion around windows and doors can occur when the wall loses stability. Failed ties allow movement, which puts pressure on openings and causes misalignment.
Roof Edges Lifting: In some cases, expansion and cracking can affect how loads are distributed. This can result in lifting at roof edges or gable movement due to the outer leaf no longer being properly restrained.
Stepped Cracking : Stepped cracking follows the mortar joints in a stair-step pattern. This is a strong indication of wall tie failure, where expansion or movement is transferring stress through the brickwork.
Outer Leaf Movement / Separation: When wall ties fail completely, the outer leaf can begin to separate from the structure. This is a serious issue and requires urgent attention to prevent further structural damage.
Brick Spalling: Bricks may begin to crack or break apart due to pressure from expanding corroded ties. This is often seen alongside horizontal cracking and indicates ongoing internal stress.
Cracks in Render: Cracks in rendered surfaces can indicate underlying structural movement. In many cases, this is caused by failing wall ties expanding and pushing against the outer leaf.
Vertical Cracking: Vertical cracks can form when sections of the wall begin to move independently. This is often linked to failed or missing wall ties allowing separation between the inner and outer leaf.
Important: A professional wall tie survey is essential to identify the original tie type used in construction. Certain types must be isolated or removed after installing a new wall tie system.
Even with new ties installed, old redundant ties can continue to corrode and expand, causing further cracking and damage if not addressed correctly.
