PILING CONTRACTORS IN LONDON & THE HOME COUNTIES
Specialists in Helical Piling, Underpinning & Mini Piles
At 360 GSS, we deliver reliable piling and underpinning solutions for domestic and commercial properties across London and the Home Counties.
With decades of combined experience, our engineers design and install helical piles, screw piles, and mini piles tailored to each site’s ground conditions and load requirements.
Whether you’re stabilising a new foundation, strengthening an existing structure, or working on restricted-access developments, our in-house team ensures your project is completed on time, safely, and to structural compliance standards.
Every installation is supported by independent structural calculations, site-specific testing, and a workmanship guarantee for complete peace of mind.
Comprehensive Piling Services
As established piling contractors, 360 GSS provides a full range of foundation and ground-support systems to suit varying soil profiles, structural loads, and access constraints.
Helical Piling
Helical piles offer fast, vibration-free installation that is ideal for restricted urban sites or properties close to existing structures. They provide excellent load-bearing performance and minimal environmental disruption.
Mini Piles
Mini piles are perfect for confined or low-headroom locations such as basements or inner-city refurbishments. They offer high strength, rapid setup, and reduced spoil removal compared with traditional bored piles.
Underpinning Solutions
Our underpinning services restore and reinforce existing foundations suffering from movement, settlement, or changes in ground conditions. Using helical or mini-pile techniques, we can stabilise structures efficiently with minimal disturbance.
Why Choose 360 GSS for Piling and Underpinning?
Proven Expertise – Over 20 years’ experience in structural and ground-engineering projects.
Precision Engineering – All designs supported by professional structural calculations and test data.
Accredited Installers – Work carried out in line with LABC and BS 8004 (Foundations Code of Practice).
Efficient Project Delivery – Rapid turnaround, minimal noise and vibration, and strict adherence to timelines.
Guaranteed Workmanship – Every installation backed by a 10-year structural guarantee.
Our Process
Site Assessment & Survey – A detailed ground assessment identifies soil conditions, access limitations, and structural requirements.
Design & Specification – Our engineers determine the most suitable piling system, calculating load capacities and pile depths.
Installation & Testing – Piles are driven or screwed into position using specialist rigs, followed by load and integrity testing.
Certification & Sign-Off – Upon completion, we issue full documentation for building control and structural compliance.
Every phase is handled by qualified piling specialists to ensure consistency, safety, and long-term stability.
FREQUENTLY ASKED QUESTIONS
What is piling and why is it needed?
Piling transfers a building’s load to deeper, stronger ground layers. It’s essential where surface soils are weak, unstable, or prone to movement.
What are helical piles?
Helical piles are steel shafts with helical plates that screw into the ground to provide load support. They’re quick to install, vibration-free, and ideal for limited-access sites.
What’s the difference between helical piles and screw piles?
The terms are often used interchangeably. Both systems use a similar principle – screw-shaped steel piles that create secure foundations with minimal excavation.
How deep do piles go?
Depth depends on soil type and load requirements. Residential projects typically range from 3 to 10 metres, while commercial foundations may require deeper installations.
What is underpinning?
Underpinning strengthens existing foundations affected by subsidence or structural movement. It involves installing new piles or supports beneath the existing base to stabilise the structure.
Can piling be used for extensions?
Yes – piling is ideal for extensions, conservatories, and loft conversions, especially when the existing foundation cannot support additional loads.
How long does piling take?
Most small-scale residential projects can be completed within 2 to 5 days, depending on ground conditions and accessibility.
Are helical piles suitable for clay soils?
Yes. Helical and screw piles perform well in clay, sand, and mixed soils, providing consistent load distribution and reduced ground movement.
How much does piling cost?
Costs vary depending on pile type, depth, and access conditions. Factors such as soil composition, load capacity, and site constraints affect pricing. A site survey is required for an accurate quote.
Do you handle both design and installation?
Yes. Our in-house engineers manage the full process from design and testing through to installation and certification.
Can you work on restricted or low-headroom sites?
Absolutely. We use compact piling rigs designed for limited-access and indoor environments such as basements or tight urban plots.
Do you offer guarantees?
Yes – all piling and underpinning installations come with a 10-year workmanship and structural guarantee.
Are your systems compliant with UK standards?
All works comply with BS 8004, Eurocode 7, and relevant LABC building control regulations.
Can you provide structural calculations?
Yes. Every project includes full structural design calculations and load test documentation for building control submission.
Do you provide free quotes?
Yes – we offer free, no-obligation quotations following an initial site consultation.
WHY CHOOSE 360 GSS?
At 360 GSS, we combine technical expertise with reliable service to deliver piling and underpinning projects built to last. Every installation is managed by qualified specialists, ensuring compliance with LABC guidance and BS 8004 standards.
All our work is backed by a structural and workmanship guarantee, supported by independent structural calculations and full compliance documentation. We carry out rigorous load testing and quality checks on every site, giving you total confidence in the strength and stability of your foundation.
From start to finish, we prioritise safety, precision, and transparent communication, providing dependable piling solutions trusted across London and the Home Counties.