Subsidence – methods used to underpin foundations

As trees can cause subsidence, I thought it would be good to detail in this blog how a property would be underpinned.

.Resin injection

1. Small holes are drilled into the ground near to the foundations.
2. The holes are then injected/filled with resin.
3. The resin is known as geopolymer resin.
4. Once the resin is injected into the holes, it begins to expand underneath the foundation and lifts it up, back to its normal position.

Resin injection can be a much cleaner and quicker way of underpinning a foundation than the most typical method.

The most typical method is:

1. Digging out channels beneath the property.
2. Fill the channels with concrete.

This typical method is much more time consuming and invasive, it is also messier.