Pricing

A CMRA report would generally cost £195. Some instances may see an increase on this cost, for example when a larger amount of information requires researching, or for additional site assistance work if required etc. All we would need to carry out the work is a description of the proposed development and a good location plan in the region of 1:2500 scale.

For small scale intrusive site investigations (i.e. a single detached dwelling), costs would generally range between £1K and £2K (depending on the required drilling depth, as determined by the risk assessment), we would carry out a minimum of 4 boreholes just outside each corner of the proposed curtilage, and possible one or two holes within. We would factor into that price the cost of gaining the required license to undertake the work from the Coal Authority, which would need to be carried out in the first instance as it usually takes around four weeks to be processed (expedited option available). Should the site fall into the worse case scenario (around 10% of cases ), where unstable ground is proved, then conclusions would be drawn as follows:

1. a) Ground stabilisation works necessary – such as grout injection of voids;
2. b) Revised foundation design necessary only;
3. c) A combination of above.