Mini Piling in London – Reliable Foundation Solutions for Confined Sites

Why Mini Piling Is Ideal for London Properties

London’s diverse ground conditions – from London Clay to River Terrace Gravels – make mini piling one of the most reliable foundation systems available. It performs well in restricted spaces, reduces vibration and delivers engineered strength that exceeds conventional strip foundations.

Typical applications include:

• House extensions where access for large rigs is impossible
• Basement and underpinning works beneath existing structures
• Garage or conservatory foundations on poor or made ground
• Retaining walls and slope stabilisation
• Commercial infill sites and tight urban locations

Mini piles can be designed to carry significant loads despite their smaller diameter. They are versatile, clean to install, and fully compatible with London’s strict building and party wall regulations.

What Is Mini Piling?

Mini piling is a small-diameter, deep foundation technique using compact rigs and sectional augers or casings. Piles typically range from 150 mm to 400 mm in diameter and can reach depths up to 15 m, depending on soil and load requirements.

We use several mini piling systems depending on the project:

• Augered Mini Piles – low-noise, low-vibration method ideal for residential work.
• Driven Steel Case Piles – suitable for granular soils and rapid installation.
• Grouted Anchor Piles – used where lateral restraint is required.
• Sectional Flight Auger (SFA) – perfect for low headroom situations such as basements.

Each method is selected following a ground investigation and structural assessment to ensure maximum safety and long-term stability.

The KHB Mini Piling Process

Our process combines engineering accuracy with practical site knowledge. We manage each stage internally, from concept to completion.

1. Site Review and Design

We begin with a full review of ground conditions, access and structural drawings. Our engineers calculate pile loads and spacing in accordance with BS 8004 & Eurocode 7.

2. Method Selection

Based on your site, we recommend the most appropriate piling technique – augered, driven or rotary bored. Each plan is supported by RAMS and method statements for Building Control approval.

3. Installation

Using modern rigs designed for London’s restricted sites, we install piles safely and precisely. Depth and pressure are recorded for each pile, and results are verified against the design specification.

4. Pile Testing and Records

Load tests, integrity tests and concrete cube tests are performed as required. A full handover pack includes pile logs, certificates and test results.

5. Capping Beam or Ground Beam Works

We also construct reinforced concrete beams to tie the piles together, forming the foundation ready for superstructure work.

Why Choose KHB Piling Ltd as Your Mini Piling Contractor in London

We understand that foundation work is critical to the success of any project. Choosing the right contractor can save you time, money and stress.

• Specialists in Confined-Access Piling – our fleet of mini rigs can work in areas as narrow as 1 m width or 2.4 m headroom.
• Experienced Engineers – all calculations and drawings prepared or reviewed by qualified structural engineers.
• Transparent Pricing – itemised quotations and clear scope, so you always know what’s included.
• Certified Quality – compliant with UK Building Regulations and NHBC standards.
• Fast Mobilisation – we operate throughout London, ready to start on short notice.
• Health & Safety Priority – comprehensive risk assessments and safe-system practices on every job.

Our goal is to keep projects on schedule, within budget and fully compliant – from small domestic extensions to commercial developments.

Mini Piling vs Traditional Foundations

In London’s mixed and often unstable soils, shallow foundations can lead to cracking, settlement or water ingress. Mini piling avoids these issues by transferring loads to deeper, more stable strata.

By investing in mini piling, you ensure a stable foundation that supports your structure for decades while minimising disruption to neighbours and nearby buildings.

Mini Piling Costs in London

Prices vary depending on pile type, diameter, and site access. As a general guide:

• Average cost per pile: £250 – £450
• Typical small extension foundation: £6,000 – £10,000
• Includes labour, concrete, reinforcement and testing

Each project is quoted individually after a site visit. We prioritise accurate, transparent pricing — no hidden extras.

London Soils and Piling Considerations

Our engineers have worked across every major soil type found in the capital:

• London Clay – stiff and shrink-swell sensitive; ideal for augered mini piles.
• Gravel and Sands – requires cased or driven systems for stability.
• Made Ground – common in redevelopment sites; demands deeper piles to reach firm strata.
• Chalk and Mixed Ground – rotary bored piles recommended.

Each area – whether Kensington, Islington, Croydon or Richmond – presents unique challenges, and our experience ensures we choose the right method every time.

Environmental and Safety Commitment

We recognise that piling can impact local communities if not handled carefully. That’s why we focus on:

• Low-noise, low-vibration rigs suitable for dense residential areas
• Dust suppression and spoil management
• Waste segregation and recycling where possible
• Full compliance with HSE construction guidelines
• Training and certification for all site operatives

We’re proud to contribute to safer, cleaner construction across London through responsible working practices and modern technology.

Areas We Cover

KHB Piling provides mini piling services throughout Greater London – including Kensington, Chelsea, Clapham, Fulham, Wimbledon, Richmond, Hampstead, Islington, and beyond.
We also serve nearby regions such as Surrey, Essex, Kent and Hertfordshire.

Get a Mini Piling Quote

If you’re planning an extension, basement or new-build requiring engineered foundations, contact KHB Piling Ltd today for a free, no-obligation quotation.

We’ll assess your drawings and ground information, recommend the most suitable method, and provide a full cost breakdown.
Our goal is to help you get your project safely and efficiently “out of the ground”.