Day Group offers comprehensive technical support for both products and services to recognised industry standards. Our technical representatives are available to give customer support when it is needed, to ensure that products are supplied to the correct specification.

We also place emphasis on developing new product ranges giving sustainable aggregate solutions.

Quality Assurance

Day Group has a designated management representative who is responsible for the Group’s Quality Management System (QMS).  The system is based on the requirements of ISO9001:2015.

  • Day Group's quality management system is certified to ISO9001:2015. The assessment and certification is performed by Afnor. Afnor are a UKAS registered company.
  • Day Group's scope of registration includes the production of recycled aggregates and hydraulically bound mixtures, provision of haulage services and primary aggregates. Provision of services to the water treatment industry and our bagged aggregate function are also within the scope
  • All Company locations are subject to regular internal audits as required by the ISO9001:2015 standard and our quality management system. A sample of Company locations are also externally audited by Afnor on an annual basis
  • Day Group's transport and distribution fleet is inspected and maintained as per VOSA Operators licencing requirements. Vehicles used for the haulage of foodstuffs are externally audited in accordance with TASCC (Trade Assurance Scheme for Combinable Crops)


We ensure that our recycled aggregates are tested against and comply with the relevant European Standard, as well as national specifications (SHW).  All our testing is carried out at independent UKAS accredited laboratories.  These results are available to customers on request.

CE Marking

As of 1st July 2013 under the Construction Products Regulations (CPR) 2011, it became mandatory for manufacturers to draw up a Declaration of Performance (DOP) and apply CE marking to any of their construction products that are covered by a harmonised European standard (HEN).

  • Materials such as Specification for Highway Works Clause 803 Type 1 and Specification for Highway Works 600 series capping and fill materials do not require CE marking.

For more information click here.

Technical Data

Day Group holds a comprehensive library of technical data from third party suppliers of all our quarried and dredged natural aggregates.

For more information please contact our Technical department at

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