Specialist piling technique where conventional rigs cannot reach
Restricted-access piling allows foundation works to be delivered where site width, working height, access routes or surrounding structures prevent the use of conventional piling plant. Compact specialist rigs and appropriate piling techniques can be selected around the individual constraints of the site.
This makes restricted-access piling particularly useful for extensions, existing buildings, basements and other constrained environments where mobilisation is a major consideration. The appropriate solution will depend on factors including available headroom, access width, structural loading and ground conditions. By considering these constraints early, SPS can identify a piling approach that balances practical site access with the foundation requirements of the project.
Compact plant
Specialist Rigs for constrained sites
Low Headroom
Options for restricted working height
Flexible Access
Suitable for difficult mobilisation routes
Adaptable Methods
Technique selected around individual constraints
How Rotary Bored Piling Works
Restricted-access piling is not one single installation method. Instead, the piling technique and equipment are selected around the physical constraints of the site, including available width, headroom, working space and mobilisation routes.
Compact piling rigs and specialist equipment allow foundation works to be considered in locations that cannot accommodate conventional plant. The final approach also takes account of structural loading, ground conditions and the surrounding built environment.
- Compact specialist equipment
- Options for low-headroom sites
- Suitable around existing structures
- Flexible mobilisation requirements
- Methods selected around individual site constraints
Best Suited For
House Extensions
Limited rear or side access
Existing Buildings
Working within or close to structures
Basements
Constrained foundation environments
Low Headroom
Internal or covered working areas
Urban Sites
Limited space and close neighbours
Difficult Access Plots
Where standard rigs cannot mobilise
Need practical advice before you enquire?
Speak to the team for quick guidance on your piling or foundation challenge.
The Process
A clear route from initial enquiry through to quotation and project delivery
Share site details
Tell us about your site constraints & project objectives
Review service options
We compare suitable methods to outline pros & cons, as well as other considerations
Receive expert advice
Get our expert guidance on buildability, programme fit and access.
Move to quotation
We confirm next steps to support smooth delivery throughout the project’s duration
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Frequently Asked Questions
What information do you need to assess restricted areas?
Site plan, photographs and basic dimensions for access width, working areas and available headroom are particularly useful
Does restricted-access piling always mean screw piling?
No. Screw piles may be suitable, but other piling techniques can also be delivered using specialist compact equipment
Can piling be carried out in an existing building?
Potentially. Suitability depends on access, headroom, ventilation, loading, ground conditions and the chosen installation method
What are the main constraints to consider on a restricted-access site?
Access width, available headroom, working platform size, proximity to existing structures and the route available for plant and materials are all important. Photographs and basic site dimensions can help SPS assess suitable equipment and piling options.