Laboratoire d’Études et Contrôle d’Expertise Géotechnique
+224 624 24 76 30 +224 625 04 56 85 laboratoirelegec@gmail.com
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LEGEC drilling rig on a laterite road
Mobile geotechnical laboratory · ASTM & NF standards · All of Guinea

Understand the ground,
before you build.

Geotechnics, geophysics, surveying, bathymetry, mining and hydrogeology: LEGEC provides the reliable data your structures need, from the first borehole to the final report.

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Since February 2026

A young team already in high demand.

50+
projects completed in Guinea
7
fields of expertise
5
geotechnical missions, from G1 to G5
24h
a day to receive your requests
Projects

More than 50 projects in Guinea.

Energy, building, infrastructure: a selection of recent missions carried out by our teams.

All projects
Borehole for pylon foundationsTombo
EnergyGeotechnics

Pylon construction

Soil investigation for the pylon foundations.

Pressuremeter test on siteSouguéta
EnergySite supervision

Power plant

Geotechnical monitoring of the power plant construction project.

LEGEC team drilling on a plotGuinea
BuildingGeotechnics

Buildings and apartment blocks

Borehole campaigns for foundation design.

Who we are

A laboratory that comes to your site.

Based at Kassoyah carrefour, in the Sanoyah urban municipality, LEGEC — Laboratoire d’Études et Contrôle d’Expertise Géotechnique — is a mobile laboratory equipped to ASTM and NF standards. We work throughout Guinea with players in construction, infrastructure, mining and energy.

More than fifty projects already completed: pylons, apartment blocks, a power plant… One standard: reliable results, delivered on time — thanks to our testing laboratory and field teams.

We support developers and project owners, engineering firms and architects, civil works contractors, mining companies, as well as public bodies and funding institutions — with answers tailored to each project.

Mobile laboratory
Tests carried out directly on site.
ASTM & NF standards
Recognised, traceable methods.
Controlled timelines
One point of contact, from quote to report.
All of Guinea
From Conakry to mining sites.
Discover LEGEC
LEGEC technicians carrying out a pressuremeter test Concrete testing with a rebound hammer Los Angeles testing machine in the laboratory
Fields of expertise

Seven fields of expertise, from the surface to the depths.

Each field has its own teams, equipment and deliverables. Together, they cover the entire project life cycle.

01

Geotechnics

Boreholes, pressuremeter and SPT tests, laboratory testing, G1 to G5 missions and foundation recommendations.

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02

Geophysics

Electrical resistivity imaging, seismic refraction, MASW, ground-penetrating radar and soil resistivity for earthing.

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03

Land surveying

GNSS and total station surveys, plans and DTM, setting-out of structures, earthwork volumes and drone surveys.

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04

Bathymetry

Echo sounder surveys with GNSS: ports, quays, estuaries, reservoirs, dredging volumes and shoreline.

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05

Mining studies

Geomechanics, stability of slopes and dams, rock and material testing, support for feasibility studies.

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06

Mineral exploration

Geological mapping, sampling, trenching, core drilling and GIS mapping of permits.

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07

Hydrogeology

Groundwater search, borehole siting, pumping tests, groundwater monitoring and water quality analyses.

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Integrated missions

Several fields combined in a single mission: one point of contact, controlled timelines, consistent data.

How it works
Live from the lab
Our laboratory

A real laboratory, behind every study.

Soils, aggregates, concrete, water: every sample is prepared, weighed and tested to ASTM and NF standards. Precise, traceable results that our engineers — and you — can rely on.

Los Angeles testing machineAggregate wear testSteel balls for the wear testSteel balls (wear test)Sand equivalentSand equivalentSample preparationSample preparation
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One point of contact

Example: a solar power plant, four fields of expertise, one single team.

Instead of coordinating several contractors, you entrust all soil, land and water studies to LEGEC.

  1. Land surveyingSite survey and DTM
  2. GeotechnicsBearing capacity for panel foundations
  3. GeophysicsSoil resistivity for earthing
  4. HydrogeologyBorehole and analysis of cleaning water
Drilling rig at work on a site
How we work

From request to report.

1

Request

You describe your project via the form or WhatsApp.

2

Programme & quote

We define the appropriate tests and price the mission.

3

Field

Boreholes, surveys and in-situ tests with our mobile laboratory.

4

Laboratory

Tests on soils, rocks, aggregates and water to ASTM and NF standards.

5

Report

Interpreted results, recommendations and test reports.

Your project starts with the ground.

Tell us what you need: we respond quickly with a testing programme and a quote. Requests received 24/7.

Request a quote WhatsApp 624 24 76 30 Call 625 04 56 85