What’s the difference between restumping, reblocking and underpinning?

These three terms have one similarity- they focus on the foundation of the house. The foundation of the house is the structure that holds a house. Restumping, reblocking and underpinning are the processes involved in replacing and repairing the wooden or concrete stumps used in supporting the foundation of a house. These processes are quite similar since they all deal with the foundation. They are however not the same.


Restumping and reblocking (replacing) can be used interchangeably, especially when referring to foundation stumps that require replacement. These two processes employ similar methods.

The concrete or wooden stumps used for the foundation of a house can start to crack. When this happens, new stumps are used by contractors to replace old stumps.

Restumping is becoming a popular process in home improvement. It is in fact embraced by most homeowners. It is important for restumping to be carried out by an experienced and certified specialist. Even if most restumping charges are the same, the quality of work is not the same. Ensure you carry out a little research before choosing just any company for your restumping. You can even ask for references and read online reviews of customers who have had experience with the company you are considering. When it comes to house stumping, don’t choose just any contractor. Go for the every best.

The process of restumping or reblocking requires digging out and replacing the worn out foundation. Jacks are then placed to support the floor while new concrete stumps are used to replace cracked stumps. The whole process of replacement can actually affect the floors and walls of your house. Once you are done laying the new foundation, our experienced contractors can help you deal with any issues that may come up.


This process is limited to homes in Melbourne with foundations built with concrete slabs and walls made from brick veneer. After some time, some parts of the slabs begin to crack or sink  causing the brick veneer to lose its tight alignment. This in turn leads to what can be described as structural instability.

The process of underpinning involves using jacks to support slabs that are cracked and fallen. A new coat of concrete is then placed all around the jacks in a bid to balance the brick alignment as well as ensure that the structure is stable.

The Difference

Restumping or reblocking involve the complete replacement of foundations stumps. Underpinning on the other hand does not involve such replacement, the concrete slaps are instead reinforced with new material