H+H UK is Britain's largest manufacturer of aircrete products. The company manufactures the market-leading range of Celcon Blocks and the H+H range of aircrete products. Aircrete is manufactured largely from recycled materials and is highly sustainable, with embodied CO2 lower than most other building materials. In 2008 H+H became the first manufacturer in the industry to achieve certification to the Carbon Trust Standard, for demonstrating year-on-year reductions in the company's carbon footprint. H+H Aircrete also achieves the highest 'A' ratings in the BRE Green Guide, meeting all levels of the Code for Sustainable Homes.
H+H UK operates a certified Environmental Management Systems (EMS) complying with ISO 14001 at all manufacturing sites. H+H was one of the first manufacturers in the construction industry to achieve BSI accreditation for its Integrated Management System, which pulls together three individual management systems for environment (ISO 14001), quality (ISO 9001) and health and safety (OHSAS 18001). The EMS is a key part of the Integhttp://www.hhcelcon.co.uk/homerated Management System (IMS), which combines quality control and Health and Safety policies.
In September 2009 H+H were awarded Very Good for all products under the BES6001:2008 Responsible Sourcing initiative from the BRE, being the first company to be awarded Very Good on all sites and for all products.