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Worried About Cracks
in Your Walls?Put Your Mind At Rest With a Free Video Assessment,
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IDENTIFYING CRACKS
The types of cracks in the walls
STAIR STEP CRACK
Cracks that follow the mortar joints in a step-like pattern found on exterior brick walls. Often indicates subsidence. Professional assessment is necessarySETTLEMENT CRACK
 Cracks that appear as a building settles throughout the building, particularly in new constructions. You should monitor for changes. Persistent or widening cracks should be evaluatedHAIRLINE CRACK
Very thin cracks, usually less than 1mm wide on plaster or drywall, typically around windows and doors. They are generally not a cause for concern. Monitor to ensure they do not widen.
VERTICAL CRACK
Cracks that run up and down the wall found on both interior and exterior walls. If less than 3mm wide, monitor for changes. If wider, consultation needed to rule out subsidence.DIAGONAL CRACK
Cracks that run at an angle, often seen near windows and doors near interior and exterior walls. If less than 3mm wide, monitor. If wider, it may indicate subsidence or structural issues, requiring an assessment.
HORIZONTAL CRACK
Cracks that run horizontally along the wall located on exterior walls, particularly in brickwork or masonry. This is often a serious sign so an evaluation is recommended to check for subsidence or structural issues.
Frequently Asked Questions
Cracks in walls can be caused by a variety of factors, including natural settling of the building, changes in temperature and humidity, poor construction practices, or underlying issues such as subsidence. It's important to identify the cause of the cracks to determine the best course of action for repair.
Subsidence occurs when the ground beneath a building sinks, causing the foundation to become unstable. This can lead to significant structural damage, including cracks in walls, floors, and ceilings. Common causes of subsidence include soil shrinkage, erosion, and the presence of underground water or voids.
Cracks caused by subsidence are usually diagonal and wider at the top than at the bottom. They often appear around doors and windows and may be accompanied by other signs such as sticking doors or windows, sloping floors, and gaps between walls and ceilings. If you notice these symptoms, it's essential to have a professional inspection to assess the extent of the subsidence.
Yes, subsidence can be repaired, and the methods used depend on the severity of the issue. Common solutions include underpinning (strengthening the foundation), Geobear resin injection (filling voids in the soil), and soil stabilisation. It's important to consult with a structural engineer to determine the most appropriate method for your specific situation.
Preventing subsidence involves maintaining stable soil conditions around your property. This can be achieved by managing water drainage, avoiding planting large trees too close to the building, and ensuring proper foundation construction. Regular inspections and maintenance can also help identify early signs of subsidence, allowing for prompt intervention.
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LEARN MORE ABOUT SUBSIDENCE
Useful things to consider when dealing with cracks or subsidence
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