GEO Site and Testing Services Llanelli Laboratory
GEO Site and Testing ServicesLlanelli, Carmarthenshire
UKAS Schedule 2788, issue 022 dated 28 October 2025, identifies GEO Site and Testing Services’s laboratory at Heol Aur, Dafen Industrial Estate in Llanelli and states ISO/IEC 17025:2017 accreditation for defined location-coded entries. The schedule separately records site activity for fresh-concrete and soil physical tests. This guide confines laboratory claims to entries marked Laboratory and does not attribute Site activities to the Llanelli laboratory.
Reviewed by Arc · About this review
Key facts
- Current UKAS-listed Llanelli laboratory
- UKAS Schedule 2788, issue 022 dated 28 October 2025, identifies GEO Site and Testing Services’s laboratory at Unit 4, Heol Aur, Dafen Industrial Estate, Dafen, Carmarthenshire, SA14 8QN for defined aggregate, concrete, rock, soil and stabilised-material physical tests.
- Separate laboratory and site allocation
- The schedule separately identifies Site activity for fresh-concrete and soil physical tests at suitable locations. This guide confines laboratory claims to entries marked Laboratory and does not attribute Site activities to Llanelli.
Testing capabilities
Selected laboratory aggregate, concrete and rock entries
UKAS Schedule 2788 lists laboratory aggregate particle-size, fragmentation, bulk-density, water-content and magnesium-sulfate entries; hardened-concrete cube-compressive-strength, density and core-compression entries; and rock point-load strength.
Selected laboratory soil and stabilised-material entries
The schedule lists laboratory soil physical, classification, compaction, CBR, consolidation, permeability, direct-shear and triaxial entries, selected geotechnical ISO methods, and defined stabilised-material moisture/density entries.
Equipment and published limits
| Specification | Published value | Conditions |
|---|---|---|
| Selected current laboratory concrete-compressive-strength entry | The schedule lists hardened-concrete cube compressive strength including curing, shape and dimensions under BS EN 12390-3:2019, BS EN 12390-2:2019 and BS EN 12390-1:2021 at Laboratory. | This is a selected current Schedule 2788 laboratory entry. It is not a complete equipment inventory or universal capacity statement. Confirm the applicable concrete, specimen, method, standard, curing, dimensions, reporting, availability and terms directly with GEO Site and Testing Services. |
Access and contact
GSTL’s current page lists Unit 3–4, Heol Aur, Dafen Industrial Estate, Dafen, Llanelli, Carmarthenshire, SA14 8QN, +44 (0)1554 784040 and info@gstl.co.uk. Treat these as information routes and confirm applicable site, scope, sample, test, availability, reporting, price and lead time directly with GEO Site and Testing Services.
Facility contact
- Address
- Unit 4, Heol Aur, Dafen Industrial Estate, Dafen
Llanelli, Carmarthenshire, SA14 8QN
United Kingdom - info@gstl.co.uk
- Telephone
- +44 (0)1554 784040
- Website
- Official test house website
Standards and accreditation
- UKAS Schedule 2788, ISO/IEC 17025:2017
- UKAS Schedule 2788, issue 022 dated 28 October 2025, states ISO/IEC 17025:2017 accreditation for GEO Site and Testing Services and identifies its Llanelli laboratory for defined site-coded activities. The schedule separately describes Site activity, so this guide only represents the laboratory-coded entries. Confirm the applicable current scope directly with GEO Site and Testing Services.
What to confirm with the facility
- Confirm the exact current laboratory or site allocation, material, sample, test, standard and edition, method, conditions, reporting, availability, price and lead time directly with GEO Site and Testing Services. Do not assume that entries allocated to Site apply at the Llanelli laboratory.
Before requesting a test
Public information not available. Contact test facility provider for more information.
Frequently asked questions
Public information not available. Contact test facility provider for more information.
Related testing facilities
Public information not available. Contact test facility provider for more information.
Further reading
Public information not available. Contact test facility provider for more information.
Sources and review
Arc reviewed GSTL’s current homepage and UKAS Schedule 2788, issue 022 dated 28 October 2025. The schedule supplies the Llanelli laboratory, separate Site allocation, ISO/IEC 17025:2017 statement and defined Laboratory-coded entries; the provider page supplies the public information route and limits its accreditation claim to Schedule 2788 activities. Confirm the exact current location, scope, sample configuration and terms directly with GEO Site and Testing Services.
Arc publishes this directory entry and does not operate the test facility. Suggest a correction to Arc with a supporting source.
GSTL Ltd | Geotechnical Testing Services
GSTL’s current first-party page is used for its published Llanelli identity, information route and statement that accreditation is limited to activities in UKAS Schedule 2788. The guide relies on the current UKAS schedule for detailed laboratory and Site allocation.
UKAS Schedule 2788: GEO Site and Testing Services
UKAS Schedule 2788, issue 022 dated 28 October 2025, is used for the Llanelli laboratory location, separate Site allocation, ISO/IEC 17025:2017 statement and defined laboratory-coded entries. The guide does not generalise the schedule beyond its listed location codes, activities, standards, test types, methods, conditions, exclusions and limits.