ACS offer a full range of drilling and coring services, from shallow windowless sampling to deep rotary and cable percussion investigations. The extensive equipment held and operated by ACS and available through our trusted subcontractors includes the latest borehole drilling equipment. This enables extensive investigations to be undertaken on a wide range of sites. Services can be tailored to suit the development or Services can be tailored to meet specific development or investigation requirements. For example, they can assist with foundation design, collect samples, or provide insights into the geology of a site.

Window / Windowless Drilling and Sampling

ACS are able to offer windowless drilling and sampling using our in-house drilling rigs. These rigs have been designed to allow quick and easy dynamic drilling in many conditions. With the small size of the rig we are able to fit through a standard doorway. This enables boreholes to be drilled on sites with limited access.

Window / windowless drilling allows boreholes to be sunk up to 10m (dependent on ground conditions). Samples are retrieved within plastic liners which allow for detailed logging and the collection of soil samples. ACS can drill water boreholes in monitoring wells for groundwater and ground gas monitoring/sampling as needed for the project.

In situ standard penetration tests (SPT) are routinely undertaken together with undisturbed samples in cohesive materials (U100). Dynamic probing (DPH & DPSH) can also be undertaken to provide a detailed profile of material density vs depth. These tests can provide a range of geotechnical design parameters.

An ACS Mobile Drill

Cable Percussion Drilling

Cable Percussion Drilling allows deeper boreholes to be sunk up to 40m dependent on the geology of the site. The equipment is larger than our windowless rigs. It requires an open site with access for a 4x4 vehicle. The vehicle is used to tow the rig and carry extra equipment. An area of 5x5m is required to enable set up of the rig and safe working.

In situ testing comprises SPT and U100. As with window / windowless drilling it is also possible to provide monitoring installations as detailed above. This drilling method is needed to gather geotechnical data for designing piled foundations at depths beyond window sampling limits.

Rotary Drilling

In certain ground conditions cable percussion drilling is not possible. Usually this is due to the presence of rock or where obstructions such as boulders are present. In such situations rotary drilling is used which enables cores to be taken through such layers using a rotating core barrel with diamond cutting shoe.

Multi-Purpose Rotary Rigs also have a dynamic sampling head. This offers both rotary and percussive options which enable a range of ground conditions to be sampled quickly and efficiently. As with the other drilling methods detailed it is possible to undertake in situ SPT and U100 testing.

A slope crawler version of this rig is also available. This rig allows investigation of embankments and cuttings for railway, landslip and other investigations.

Sonic drilling can also be used in place of rotary. Sonic drilling utilises the same rotary method but adds a vibratory force, allowing a faster progression through denser materials.

Core Cutting

Core cutting can be undertaken from 24 to 300mm diameter using both hydraulic and electric rigs. We use different types of rigs for different situations, depending on the depth, diameter, and access restrictions.

Cores are commonly taken through concrete, bituminous materials, bricks, blocks or natural stone. Once cores are obtained, they are taken back to the ACS laboratory for analysis at specific diameters. Horizontal cores can be taken through walls or abutments.

Core cutting can also be undertaken using an attachment to our windowless rigs. This allows boreholes to be easily undertaken in areas of hardstanding, such as car parks, carriageways and internal concrete floor slabs.


Engineering logs of all exploratory holes can be prepared by our Geo-Environmental Engineers and provided in AGS format if required. We have bespoke site equipment which allows digital logging for direct transfer into logging software.

Further interpretation, analysis and advice regarding laboratory testing can also be provided through our Geo-Environmental Consultancy department

If you're looking for cost-effective drilling services, contact us on 01202 622858. Our Geo-Environmental Consultancy team will be happy to help with your project requirements.

ACS Services

Please see below for a list of the services provided by ACS:

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Geo-Environmental Consultancy

The ACS Geo-Environmental Consultancy Department has been operating as part of ACS for over 10 years.

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On-Site Testing Services

ACS offers a comprehensive range of professional on-site testing, all carried out by our fully trained site technicians.

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Aggregates and Soils Testing

From our main laboratory in Poole, Dorset, ACS provide quality testing and material consultancy for the construction and civil engineering industry.

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Bituminous Testing

ACS carries out testing on new bituminous binder material and testing on hardened material for physical and chemical properties. Before the 1980s, Tar (which can cause cancer) was used as a binder. ACS staff can check materials to see if Tar was used.

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Concrete Testing

Concrete was the first service to be offered by ACS back in 1987. We now test fresh and hardened concrete using a variety of UKAS Accredited methods.

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Mortar and Screed Testing

ACS can sample and test new and hardened mortar. Hardened mortar for mix proportions and constituents, new mortar for compressive and flexural strength.

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Contamination and WAC Testing

At ACS, we provide a dependable chemical analysis service for waste soils and construction materials. We use different test solids and leaching procedures recommended by the Environment Agency.

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Chemical Testing

The ACS chemical laboratory was established in 2007. It complements the physical materials testing service provided by ACS by offering a range of chemical analytical services.

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Leachate and Water Analysis

Our purpose-built analytical laboratory enables ACS to provide a comprehensive sampling, monitoring and analysis service on a wide range of leachate and water samples.

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Natural Stone Testing

Our newly refurbished stone testing laboratory has given us the opportunity to expand our testing scope. In addition, we have increased production and improved on our turnaround of samples.

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Site Laboratory Services

Over the last 35 years, ACS have supplied custom fitted site laboratories with technicians to many construction sites and projects worldwide.

Persistent Organic Pollutants

Our experienced lab technicians can provide detailed and accurate analysis of Persistent Organic Pollutants (POPs) in almost any sample matrix in line with the Stockholm Convention.

Energy From Waste

Experts in Energy from Waste residues, ACS offers a full range of services, including gasification, pyrolysis, syngas and tar sampling, and analysis and interpretation of analytical results for IBA and APCr.

RoHS Compliance Testing

At ACS, we undertake rigorous RoHS compliance testing to identify and quantify any contaminants in your shredded waste, ensuring your product meets strict RoHS requirements.

Energy Supply, Generation & Regulation

Our highly skilled team provide industry-leading waste fuel testing services for RDF, SRF, MSW, and Solid Biomass, helping you save costs and meet compliance standards for total peace of mind.


If you require a collection that is outside of our usual range, please feel free to call us on 01202 622858.
Or contact us and we will do our best to accommodate your requirements.