Foundation underpinning is essentially a reparation method that it used to strengthen the existing foundation of a building under ground level. The process is often used for structures where the foundation has moved and it requires specialist work for further breakdown. If damages are left unresolved and require underpinning, the cost will increase the longer it is left. Here we outline the main things you need to know about underpinning and whether this is something you should consider.
Why would you need underpinning?
If the soil beneath the foundations of a properties structure has weakened, underpinning is a highly cost-effective way to help the problem, the longer it is left, the more likely the cost is to increase. In addition to this you’ll be putting your property at major risk.
Underpinning is usually essential when the following occurs:
-
The original structure is not stable
-
The structure has changed
-
There is a requirement of a basement beneath an existing structure
-
The soil beneath the house shows signs of subsidence
-
Any kind of natural disaster has moved the structure
A building usually requires underpinning when there is cracking wider than ¼ inch and there are signs of a faulty foundation. Particularly when you can notice diagonal cracks.
Does your property require underpinning?
When subsidence happens, the supporting soil within a structure moves away thus removing its support. The signs aren’t necessarily immediate, however you may notice cracks in the walls, windows or door frames. It’s imperative that you select the correct repair method for your property.
What are the different types of underpinning?
-
Mass concrete – this traditional type of underpinning involves creating a box shaped void by hand beneath the foundations. The final result is a solid foundation beneath the structure.
-
Beam and base method – this involves a process of using reinforced concrete which is installed from above, below or to replace the current existing structure.
-
Mini piled method – this method is ideal when access to the foundation is limited and the ground conditions are shifting. Mini piles ensure that the load can be transferred down to stable ground within depths greater than five meters.
-
Cantilever beams – this method utilises existing wall foundations through the use of piles installed either side of an existing wall.
-
Needle beams – this method stabilises the existing wall foundation by digging underneath the foundations that are already present.
Here at 118 Foundations we have over a decade of experience in underpinning work and offer this at the lowest price. For any kind of project we guarantee that we’ll provide a highly professional and efficient service. We even offer a free on-site survey as well as a free quote. Get in touch to find out more about the highest quality and most affordable underpinning in Manchester and the surrounding areas.