
Resin Injection – The Modern Underpinning Alternative
The Cost Of Underpinning in 2025
Underpinning is a critical solution for addressing sinking foundations, cracked walls, and subsidence issues. It restores the structural integrity of your home.
However, the cost of underpinning can vary significantly depending on the method used, the extent of damage, and several other factors.
Here’s a breakdown of what you need to know about underpinning costs, including modern alternatives like resin injection technology.
Resin underpinning is generally more cost-effective compared to traditional methods due to its efficiency and lower labour requirements. You can expect the average residential underpinning job cost to be anywhere between $4,000 and $15,000*.