Groundworks Guides

Piling costs depend on the number of piles, type (driven, bored, mini piling), depth, access and ground conditions. Before starting groundworks, many projects require a topographical survey to map the site accurately — this helps with setting out and avoids surprises. This guide gives typical price ranges and what affects the final cost.

Mini piling is often used for extensions, basements and tight-access sites. Costs are typically per pile or per linear metre and depend on depth, diameter and ground conditions.

Different piling types suit different ground conditions, loads and site constraints. This guide explains driven piles, bored piles, mini piling and sheet piling so you can understand what your engineer has specified.

Piling is required when the ground cannot safely support conventional strip or pad foundations. Made ground, soft soils, high loads and contaminated land are common reasons. Before groundworks, a topographical survey can help map the site; the structural engineer then uses the ground investigation to decide if piling is needed.

Foundation costs vary with type (strip, pad, raft, piled), size and ground conditions. Many projects start with a topographical survey to establish levels and features; then the structural engineer designs the foundations. This guide outlines typical cost ranges.

Concrete foundation costs depend on volume, reinforcement and access. We supply and place quality concrete for strip, pad, raft and ground beams with testing and records.

Excavation costs depend on volume, depth, support and disposal. Before digging, a utility survey can identify buried services and avoid strikes; we can work around known services or coordinate with your surveyor.

Site clearance costs depend on the extent of vegetation, structures and arisings. We clear sites for development and remove waste with documentation. For complex or contaminated sites, surveys and method statements may be needed first.

Enabling works prepare the site so main construction can start on programme. They include access roads, temporary drainage, fencing, hoardings and temporary services. During groundworks, drainage installation often follows — for permanent drainage connections, specialist drainage contractors such as those at mainlinedrains.co.uk can handle the installation once the groundworks are ready.

Groundworks typically follow a clear sequence: site clearance, setting out, excavation, piling or foundations, drainage and reinstatement. Before starting, many projects need a topographical survey to map the site accurately; you can get this from a specialist such as mainlinesurveys.co.uk. We then deliver the groundworks to programme.

Site preparation includes surveys (topographical and often utility), clearance and enabling works. A topographical survey maps levels and features — mainlinesurveys.co.uk provide these before construction. We then carry out clearance and enabling works so the site is ready for main groundworks.