What is Chemical Underpinning?

Chemical underpinning, also known as resin injection is a technique used to improve the strength and stability of a building’s foundation.

This method is particularly useful when the soil beneath a structure is weak, unstable, or shifting.

It involves injecting a multi component resin into the soil beneath the foundation, where it reacts and hardens, increasing the load-bearing capacity of the soil and re-supporting the foundation.

We use our Teretek® resin injection technology to enhance soil properties beneath existing structures.

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Chemical Underpinning Process

The Teretek Resin Injection Process

Small holes are drilled into the treatment zone.
Teretek material is injected, quickly expanding to fill voids and compact loose or weal sub grade soils.
Continued injection raises and re-supports the slab.
The treated area can be used immediately after the repair work is done.

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Chemical Underpinning Applications

Foundation Stabilisation: Chemical underpinning or resin injection is often used when existing foundations have settled or when soil conditions are poor, such as in areas with high moisture content or weak clays.

Structural Repairs: It’s used to prevent further settling or tilting of a building, especially when the foundation is compromised due to aging, shifting, or external factors like nearby excavation or construction.

New Construction Projects: In situations where a building is being expanded or repurposed, resin injection can provide additional support to the existing foundation without requiring a full excavation or demolition.

Overall, chemical underpinning is a highly effective and efficient solution for re-levelling and re-supporting foundations in various types of soil conditions, especially in areas where traditional methods are impractical or too expensive.

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Features & Benefits

Mainmark’s Resin Injection Chemical Underpinning

Fast

Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.

Environmentally Inert

Our technologies use an inert material that is non-toxic and does not leach into the environment or affect the treated area.

Non-Invasive

Our solutions are of surgical nature compared to traditional methods.

Cost-Effective

Compared to traditional methods, our solutions are more cost-effective, with minimal disruption to the area.

Chemical Underpinning Foundation Repair

Before & After Treatment

Houses that need chemical underpinningoften develop cracks in walls, sinking floors, sticking windows or jammed doors.

Our resin injection chemical underpinning solution is designed to address sinking foundations and cracked walls, ensuring long-lasting stability for your home. Whether it’s repairing a sinking foundation or cracked wall, re-levelling a driveway, or repairing a sinking concrete floor, we provide tailored services for every job.

We offer a range of underpinning options, including resin injection underpinning and concrete underpinning, to help raise and relevel sunken structures. The cost of underpinning varies depending on factors like the extent of damage and the type of foundation. Our expert team specialises in chemical underpinning resin injection ensuring your home is safe and secure for the future.

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Chemical Underpinning Quote

Arrange a site assessment in 3 simple steps:

Step 1

Submit your enquiry using our online form. Include a brief message about the type of foundation issues you are experiencing.

Step 2

Our friendly customer service team will be in touch to schedule a site assessment that suits you.

Step 3

One of the Mainmark experts will visit your home or property, assess the damage, and ascertain the likely cause. They will establish the approach needed, creating a plan specific to the needs of your building and provide you with a detailed quote.

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