When a building shows signs of subsidence, people often refer to either a subsided foundation or a subsided floor. Although both issues can lead to cracks, settlement, or tilting, they are different problems. In this article, we explain these differences, how to recognize them, and how Faber Vloerliften can help.
What is a subsided foundation?
A subsided foundation occurs when the load-bearing capacity of the soil beneath the foundation is insufficient. The foundation itself is often a piled or masonry structure made of brick or poured concrete, on which the ground floor rests. Subsidence in this structure can be caused by soil settlement, incorrectly constructed foundations, or changes in groundwater levels. Common symptoms of a subsided foundation include:
- Cracks in walls or ceilings
- Doors and window frames that no longer close properly
- Uneven floors that slope up or down
A subsided foundation is often more complex and can have major consequences for the structural safety of a building. Repairing a foundation requires specialist knowledge and experience.
What is a subsided floor?
Many buildings have a ground floor slab made of concrete, poured directly onto sand, or a foundation slab where the foundation and ground floor form one structure. A subsided floor usually occurs when the soil directly beneath the floor settles or shifts. This can happen due to:
- Soil settlement after new construction or renovation
- Changes in groundwater levels
Symptoms are often easier to recognize than with foundation issues: the floor feels uneven, minor cracks may appear, or the floor can sound hollow when walked on. Compared to foundation problems, a subsided floor is generally quicker and easier to repair.
For foundation-related work, we recommend contacting a specialist foundation repair company. If it concerns a subsided ground floor slab, we are of course happy to help you. Unsure about the situation? Feel free to contact us for professional and honest advice.
The difference between a subsided foundation and a subsided floor. It is important to understand the difference before starting repair work:
- Location of the problem: cracks in walls and frames often indicate foundation issues, while uneven surfaces or hollow spots in the floor point to floor subsidence.
- Scale of the problem: foundation issues usually affect the entire building; floor subsidence is typically limited to the floor surface.
- Complexity of repair: foundations often require structural intervention, while floors can often be repaired using lifting or injection methods.
Our service: from inspection to repair
Not sure whether it is a subsided foundation or floor? We are happy to help. With more than 30 years of experience in floor repair and five locations across the Netherlands, we have extensive local knowledge of soil conditions and construction types. The foam concrete used by Faber Vloerliften is independently tested and sustainably produced. Our specialists inspect the situation on site, advise you on the best approach, and carry out the repair with minimal disruption. This ensures professional and durable restoration, with attention to safety, health, and the environment.