National Underpinning
Survey notes, tape measure, and a laptop showing a cost chart
National Underpinning

What will it cost?

A sensible estimate based on the method and your situation. The site survey gives you the fixed quote.

  • UK-wide coverage and local knowledge
  • 20 year remedial warranty
  • Diagnostics to remedial work

Cost estimate

The more detail you give, the closer the estimate.

Whole metres, 1 to 40.

Selected: 2

Estimated range

£6,390 to £13,910

Indicative only. A site survey gives you a fixed quote, usually within 10% of the upper figure for the right method.

Book a free survey

This calculator gives a guide range, not a binding quote. The biggest swings come from depth, access, and ground conditions, none of which are fully knowable without a site visit.

Where the ground is unusual (made-up, waterlogged, near mature trees), expect the upper end of the range. Where the wall is short and accessible, expect the lower end.

Get a free assessment

A surveyor will be in touch within 48 hours.

Get a free assessment