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Drilling and Trial Pitting

Our team of highly experienced engineering geologists can deliver drilling and trial pitting services to gain key information about land before you begin construction.

Assessing and analysing key qualities of your construction site is a vital step to take before proceeding with development. Our drilling and trial pitting services can help gather important details about your site, helping you to make informed decisions when the time comes. We are versatile, offering investigations for projects of varying sizes, with each method offering different advantages.

Drilling

Understanding the land you work on before development begins is a vital step that helps minimise future obstacles. This streamlines your project, ensuring it moves ahead according to your plan. Drilling, while the more expensive option, can help you to obtain precise information about the ground on your site.

Geotechnical drilling is conducted deep into the ground, obtaining direct information about its property by various means. These include collecting rock and soil samples for testing, determining the strength of the ground, or testing water levels.

The benefits of using a drill rig in this stage stem from its capability to reach a lower depth than trial pitting. It’s also the preferred method when installing instruments helpful for tasks such as monitoring wells.

This method uses more advanced technology to deliver more accurate results compared to trial pitting.

borehole drilling

Trial Pitting

Compared to geotechnical drilling rigs, hand-dug trial pits are a simpler, more cost-effective option for ground investigations. By digging a 4-6m pit, we can help you gain relevant insights for your smaller-scale projects. In addition, trial pitting is faster, allowing projects with a shorter deadline to carry out small-scale site investigations in a single day.

Our team can provide you with vital information about your land’s quality, helping you to better prepare for later stages of development. After gathering the information, it can help you determine foundational aspects of your development, including necessary load-bearing factors, potential costs and safety requirements.

It can also help to uncover potential obstacles, such as buried structures or utility lines that may not have been communicated beforehand. All of this helps prepare the necessary parties before key decisions are made during development, leading to a streamlined, regulation-compliant process built on informed decisions.

drilling and trial pitting

Why work with Groundrisk

Through drilling and trial pitting, Ground Risk can gain a thorough understanding of your site, the ground’s composition and its physical attributes. This information is vital for later stages of development so it’s worth having a team of experts to complete the necessary on-site tests to minimise future risk.

Get in touch

If you need to learn more about drilling, trial pitting or any of our other services, then contact our team with any questions.

Get in touch

Projects

Fairway Park supplementary risk assessment

Project – Fairway Park

See project
Carnaig Substation ground investigation

Carnaig Substation

See project
Konect Phase 2 - Karst risk assessment

Konect Phase 2

See project
Bam logo
Blueoak Estates
Barhale - Engineered for Generations
Elan Homes
EPG - Environmental protection group
Gleeson logo
The Sovini Group
GOW Group
Boad logo
Partnership Homes Limited
Tilbury Douglas
Starship logo
Warner Surveys, Utility Mapping Ltd

Ground Risk provides specialist geotechnical and geo‑environmental services to support residential and commercial development across the UK. We deliver desk studies, ground investigations, risk assessments and foundation advice that are practical, proportionate and fully aligned with UK regulatory guidance.

Our experience spans brownfield redevelopment, greenfield sites, education projects and complex ground conditions, helping clients manage risk and progress development with confidence.

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