Our ground investigations are carried out in accordance with BS 5930:1999 and BS 10175:2001. They can be carried out for a variety of reasons such as to meet NHBC conditions, foundation design or to satisfy contaminated land planning conditions.

A detailed SI can reduce the risk of delays as well as reducing the design and construction costs. We offer a comprehensive service which can be tailored to the specific needs of our clients within their budget.

A typical ground investigation would comprise a number of investigation points constructed by one or a combination of the following:

• Cable Percussive Drilling:

Standard rig towed by a land rover or specialist cut-down dismoutable rig. Can drill up to 50m and carry out in-situ SPT testing. Information obtained can be used in piled foundation design.

• Window Sampling:

Hand held equipment for restricted access sites. Cost-effective borehole construction upto 5m depth with hand augers or pneumatically driven window sample tubes.

• Dynamic Probing:

Tracked DPH rig or DPSH 'Terrier' Rigs for difficult or sloped terrain, which can carry out in-situ dynamic probe testing and sample upto 5m.

• Rotary Drilling:

Generally carried out in very dense soils or bedrock. Core samples can be taken or in-situ SPTs carried out. A variety of rigs can drill upto 150m depth.

• Trial Pits:

Mechanical or hand dug trial pits. Hand dug trial pits can be used to expose existing foundations and establish their depth. Soakaway testing to BRE365 is carried out in trialpits.

• Concrete Coring:

Using our in-house concrete coring rig we can core samples of roads and floor slabs up to 150mm diameter. This also allows neat reinstatement and is useful in heavy traffic locations such as petrol station forecourts. The rig is electric, dismantlable and can be taken through a standard doorway.