If you have cracks or movement in your internal walls, then you may have a problem with your foundation slab.  If you can fix this problem, your home should settle back into a normal position.

There are various underpinning options that might put things right again. For example, slabjacking is worth considering. How does this fix work and what are its benefits?

How Does Slabjacking Work?

If a foundation slab doesn't stay in the right place, you'll eventually see some damage in your home. For example, if a slab sinks, it can't provide adequate support to the building which will, in turn, start to sink down.

Slabjacking is an underpinning technique that addresses this problem from below. You use special materials to jack the slab back into place.

Basically, you drill holes in the slab to give you access underneath. You then inject a specialist mix, say of grout or resin, through the drill holes via a pump and hose system.

This mix goes under the slab and, as it builds up and fills the space, it jacks the slab back up until it is restored to its correct position. The fill then dries hard and gives the slab extra support.

Why Use Slabjacking?

Slabjacking is an effective underpinning solution for various slab movement problems. The jacking material automatically raises and levels the slab from underneath. All you have to do is to get the right amount of jacking material in the right places until you get things back where they should be.

This solution is less invasive than some other foundation fixes. For example, you don't have to clear the slab to have full access to it. You only need clear space to drill holes at specific intervals so that the hoses can get underneath the concrete. The pump and hoses can deal with the slab's weight and anything it supports.

You also don't have to replace any or all of your foundation itself. This fix works through your existing slab from the top down.

Plus, slabjacking is also typically a quick repair job. It doesn't require digging or concreting, so it could take just a matter of hours to put things right again.

If you need a quick fix, then talk to local foundation crack repair professionals. They can assess if slabjacking is a viable solution and, if it is, they can fix the problem. They can also help you deal with any peripheral damage in your home once the underpinning work is complete.