: They are typically thicker than a 10-pence coin (roughly 3mm).
The causes of subsidence cracks can be broadly classified into two categories: natural and man-made.
Not every crack is subsidence. Here’s how to tell the difference: subsidence cracks
: Frequently appear near "weak points" like door frames, window corners, or where a new extension meets the original building.
Prevention and mitigation of subsidence cracks require a combination of planning, design, and construction techniques. : They are typically thicker than a 10-pence
Here’s the honest breakdown of fixes, from least to most invasive:
As Emma dug deeper, she realized that subsidence was a common issue in her area. The ground beneath her house was literally sinking, causing the foundation to shift and the walls to crack. She felt a chill run down her spine as she realized that her dream home was slowly sinking into the ground. Here’s how to tell the difference: : Frequently
Subsidence cracks occur when the ground beneath a property’s foundations sinks or compresses unevenly, causing the foundation to move downward. This is different from settlement (minor, stable cracking soon after build) or heave (ground swelling upward). Subsidence is progressive and structural—it threatens the integrity of your home.
Emma knew she had to act fast. She called a structural engineer, who assessed the damage and confirmed her worst fears. The house needed serious repairs, and fast. The engineer explained that the subsidence was caused by the combination of the clay soil and the old coal mines beneath the house. He recommended installing a system of underpinning to stabilize the foundation and prevent further damage.
It took months to complete the repairs, but eventually, the house was stabilized, and the cracks began to close. Emma was relieved, but she knew that she had to be vigilant. She continued to monitor the house, checking for any signs of further subsidence.
The repairs were costly and time-consuming, but Emma was determined to save her home. She worked with her insurance company to cover the costs, and she hired a team of experts to install the underpinning system.