22 Jun What Is Helical Screw Piling and Why Is It Gaining Popularity?
When it comes to building strong, reliable foundations, speed, precision and minimal disruption matter. That’s why helical screw piling is becoming an increasingly popular foundation solution across the UK, particularly for residential extensions, modular buildings, commercial projects, restricted-access sites and environmentally sensitive locations.
With the UK construction sector under pressure to deliver faster, cleaner and more cost-effective projects, modern piling techniques are playing a bigger role than ever. In 2024, construction new work in Great Britain reached a record value of £140.684 billion. At the same time, England recorded 124,860 new build dwelling starts in the year to 31 December 2025, a 15% increase year on year, showing continued demand for efficient foundation solutions.
What Is Helical Screw Piling?
Helical screw piles, also known as screw piles or helical piles, are steel foundation shafts fitted with spiral plates. These piles are mechanically screwed into the ground, rather than being driven or bored in the traditional way.
Once installed to the required depth and torque, the piles provide a strong load-bearing foundation that can support structures such as:
- House extensions
- Garden rooms and outbuildings
- Modular buildings
- Commercial units
- Temporary structures
- Sites with poor or variable ground conditions
Because helical piles are installed using rotational force, they can often be fitted with less excavation, reduced spoil and lower vibration compared with some traditional piling methods.
Why Is Helical Screw Piling Gaining Popularity?
1. Faster Installation Times
One of the biggest advantages of helical screw piling is speed. Traditional concrete foundations often require excavation, formwork, curing time and spoil removal. Screw piles, by contrast, can often be installed quickly and loaded soon after installation.
For developers, homeowners and contractors, this can mean shorter project timelines, fewer delays and a faster route to the next stage of construction.
2. Reduced Site Disruption
Many projects take place in tight urban spaces, rear gardens, existing properties or sites with limited access. Helical screw piling is well suited to these conditions because installation can be carried out with compact equipment and minimal excavation.
This makes it particularly useful for domestic extensions, underpinning-related works, retrofit projects and construction in built-up areas where noise, vibration and mess need to be carefully controlled.
3. A More Sustainable Foundation Option
Sustainability is now a major consideration in UK construction. The UK Green Building Council states that embodied carbon from the construction and refurbishment of buildings currently accounts for 20% of UK built environment emissions. Construction, demolition and excavation also account for around 60% of UK material use and waste generation, making reduced excavation and waste a clear priority.
Helical screw piling can help reduce waste because it typically requires less digging, less concrete and less spoil removal than many conventional foundation methods. In some cases, screw piles can also be removed and reused, making them attractive for temporary structures or projects where future flexibility is important.
4. Suitable for Challenging Ground Conditions
Not every site has ideal ground. Soft soils, made ground, clay, sloping sites and areas with a high water table can all create foundation challenges.
Helical screw piles are designed to transfer loads to more competent ground layers. During installation, engineers can check that the piles are secure and able to support the required weight, helping engineers and contractors achieve a reliable foundation solution even where ground conditions are less straightforward.
5. Ideal for Restricted Access Sites
Across the UK, many construction projects involve working around existing homes, neighbouring buildings, narrow access routes or confined urban plots. Helical screw piling is often chosen because smaller rigs and equipment can be used where larger piling machinery may not be practical.
This is particularly valuable in London and other dense urban areas, where access constraints can make traditional foundation methods more difficult, disruptive or expensive.
Is Helical Screw Piling Right for Your Project?
The best foundation solution depends on the structure, soil conditions, access, load requirements, surrounding buildings and project budget. That’s why it is important to work with experienced piling specialists who can assess the site properly and recommend the most appropriate method.
At U&M Group, we provide a comprehensive range of piling services, including foundation piling, mini-piling, contiguous piling and other specialist piling solutions. We have more than 30 years of piling contracting experience and a wide range of foundation services for domestic, commercial and structural projects.
Contact us today to discuss your project and find the right piling solution for your site.