Raft Foundation
Provide stability & prevent settlement
We specialise in providing reliable raft foundation solutions for projects of all sizes.
Strong, stable solutions for poor ground conditions and large structures.
At SW Underpinning & Piling Solutions, we offer expert raft foundation installations tailored to suit both residential and commercial projects. Also known as a mat foundation, they are ideal for building on weak or uneven ground, as it spreads the structural load across a large reinforced concrete slab—minimising settlement and increasing long-term stability.
With over 27 years of experience in foundation engineering, our team designs and delivers cost-effective and efficient foundations, especially suited to sites where traditional footings are not practical. These solutions are commonly used for extensions, new builds, and larger developments requiring uniform load distribution.
For projects involving complex ground conditions, we also offer complementary services like piling and ground beams, ensuring the right solution for every scenario.
Speak to our in-house structural engineer for expert advice or contact us for a free, no-obligation quote. For more technical information on raft foundations, visit the Institution of Structural Engineers.
Yes, raft foundations are suitable for a wide range of structures, including homes, warehouses, and office buildings.
Typical raft foundations range from 150mm to 300mm thick, but the exact specification depends on load requirements and ground conditions, determined during the design phase.



