Southern Testing Laboratories Ltd

Southern Testing Laboratories Ltd provides specialist ground investigation, geotechnical and environmental consultancy services from its base in East Grinstead, supporting projects throughout the UK. Established in 1967, the company combines consultancy with contractor-led site investigation, backed by field operations and laboratory facilities.

Its drilling capability includes windowless sampler, cable percussive, rotary cored, rotary auger, diamond drilling and concrete coring. The team also undertakes work in restricted-access settings such as basements, rear gardens, low-headroom areas and steep slopes, as well as nearshore and inland overwater investigations.

Borehole soakaway work is a particular documented service. Southern Testing undertakes permeability and soakage testing, alongside the drilling, testing and installation of borehole soakaways where water needs to reach permeable strata at depth. This is supported by wider services including geotechnical and environmental investigations, groundwater testing and monitoring, soil and rock analysis, laboratory testing and geotechnical consultancy.

The company works with residential clients as well as commercial, industrial, infrastructure, utilities, healthcare, education, transport and brownfield-development projects. Its own drilling plant, skilled field personnel and in-house testing facilities allow investigations to be tailored to complex sites and changing ground conditions.