Decagon Engineering

Know the ground before you build on it

Engineering solutions that reduce ground and foundation risk before construction begins, because the most expensive mistakes on a project are usually the ones made below grade.

What We Deliver

The foundation decides everything above it

Foundation failures, differential settlement, and slope instability are rarely design problems, they're ground problems that were never investigated. We test the soil, assess bearing capacity, and design accordingly, before the first pile is driven.

Excavator performing earthworks and backfilling at a foundation site
Earthworks

Ground truth before ground works

Excavation, backfilling, and plinth-level works are guided by what the investigation actually found, not assumptions carried over from a neighbouring site.

How It Works

From borehole to build-ready

Step 01

Site Investigation

Boreholes and in-situ testing establish soil profile, groundwater conditions, and bearing capacity across the site.

Step 02

Laboratory Analysis

Soil samples are tested for strength, compressibility, and composition to inform foundation and earthworks design.

Step 03

Foundation & Ground Design

We recommend the foundation type, ground improvement measures, and retaining or slope stability works the site actually requires.

Step 04

Geotechnical Report

A full report, ready for the design team, the regulator, or the lender, documenting exactly what the ground can and can't support.

Worker excavating a foundation trench beside reinforced concrete formwork
Foundation Design

Built to what the ground can carry

Reinforcement, depth, and bearing capacity are sized to the soil conditions actually found on site, not a standard detail reused from the last project.

Who We Build For

Every scale, one standard

Private Developers Government Agencies Infrastructure Contractors Commercial Developers Property Owners Institutional Clients
Ready to Build?

Get Your Site Investigated

Before you finalize a design, know what's beneath it.

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