Cost of Underpinning Foundations

Underpinning is an essential structural process used to strengthen and stabilize a building’s foundations. It can be done for a variety of reasons, including the original foundation becoming unstable due to age and use or soil issues that cause subsidence and other damage. It can also be required if the structure is being redeveloped or new loads are being added. In these cases, underpinning will ensure that the new foundation is strong enough to accommodate the additional load and prevent further damage.

The cost of underpinning foundations varies depending on the severity of the problem and which method is chosen. In some cases, only a small portion of the foundation needs to be underpinned, while in other instances, the entire building may need to be underpinned to resolve the issue and protect the structure. The costs can also vary by the depth that is needed for the underpinning.

Most of the cost of underpinning comes from the materials that are needed. This includes the piers and other supports, as well as the cement that is poured into the area. These materials can add up quickly, especially if the underpinning is extensive and requires a lot of support. Other components of the cost can include labor, permitting, and excavation if necessary.

One of the most common ways that a structure can be underpinned is by using a mass concrete underpinning method. This involves digging out the soil underneath the existing foundation and pouring in a new layer of concrete. The process is often carried out in stages to allow the current foundation to continue to bear its weight while the new layer of concrete is installed.

Another popular method of underpinning is through the use of helical piers. These piers are inserted into the ground through holes that are driven into the existing footing. These piers have a helix-shaped section that is bent into the ground, and then capped with concrete. These piers can be used to jack up a house, which can correct settlement problems and make the building more stable.

A third option is to have the underpinning done by grouting. This is a method that involves injecting grout into the soil under the foundations of a building. This changes the chemical makeup of the native soils and makes them more able to support the foundations above them. This method can be especially effective for situations where the soil underneath the foundations has been disturbed, such as when a close excavation is completed beneath a home.

Whether you choose underpinning by helical piers, screw piles, or mass concrete underpinning, the end result will be a stronger, more stable foundation for your home or business. Underpinning will help to protect your investment and improve the value of your property. It will also provide you with a more comfortable living space by preventing the walls and ceilings from shifting, which can make it difficult to open or close doors and windows. However, it is important to understand that underpinning alone won’t fix your foundation issues; you will also need to address the underlying problem to prevent the foundations from failing again in the future.

Precise Restumping & Underpinning successfully maintains a reputation for delivering quality, reliable and sound services to clients all over New South Wales, with a licensed builder that personally oversee all work.