Piling Contractors in Buckinghamshire and Hertfordshire
Our Klemm 701-01 mini piling rig
DW Clayfield are piling and groundwork specialists based in Amersham. We own our rigs and our own concrete batching facility, we make up the steel reinforcement on site, and we design the foundations in-house. So one team takes your job from the first site visit to the finished ring beams and ground slab.
Which type of piling do you need?
The right pile depends on the ground, the loads and how much room there is to work.
- Mini piling suits rear extensions and sites where headroom and space are limited. Our Klemm 701-01 mini rig works where a full-size rig won't fit.
- Augered piling uses augers in a wide range of diameters for new houses and extensions, where the ground will allow an open bore.
- CFA (hollow stem) piling is for ground that won't allow normal augered piles. Concrete is pumped down the hollow auger as it is withdrawn, so the bore stays supported throughout.
- Large scale piling with our Klemm 804-01 rig covers house and commercial foundations. Subject to ground conditions, it can work without a piling mat and close to trees.
- Piled walls, contiguous or secant, hold back the ground for basements, boundary retaining walls and temporary shoring.
Why piled foundations?
Clay soils shrink and swell as they dry out and get wet again, and nearby trees make the movement worse, so foundations in clay near trees often have to go very deep. Piles carry the building's load down to firmer ground instead. Where the ground suits them, we also build traditional concrete strip foundations.
From piles to slab
Once the piles are in, we cap them and build the reinforced concrete ring beams and ground slabs that carry the building, using steel reinforcement made up on site. Our rigs also drill geothermal boreholes to 80 metres for ground source heat pumps.
Where we work
We pile across Buckinghamshire and Hertfordshire from our base in Amersham, and take on work further afield in the South East.
To talk through the foundations for your project, call us on 01494 725469 or get in touch.