H+H UK Limited

H+H is the only company in the UK to concentrate exclusively on the manufacture of aircrete products. Our focus is the development of products and systems to provide high performance buildings guaranteed to last several lifetimes.

Our Vision

To be recognised as a market leader and preferred supplier of innovative, sustainable and cost-effective aircrete building solutions.

Our Mission

To supply value added aircrete solutions for buildings in profitable partnerships with distributors, contractors and housebuilders.

Our Company

We manufacture our range of Celcon Blocks in three state-of-the art factories in Kent and Yorkshire. Our Borough Green factory, recently the subject of a major rebuilding programme, is the most modern and efficient aircrete factory in Europe, and we benefit from the experience and knowledge of our technical experts from our plants across Europe.

What is Aircrete?

Aircrete is a lightweight masonry material, combining the strength, durability and thermal efficiency of concrete with the ease of use that comes with a lighter material, easy to cut and work on site.

The materials used in the manufacture of H+H Aircrete are: sand, pulverised fuel ash (PFA), cement, lime and water. These are combined into a slurry and small amount of aluminium powder is added to the mix. This initiates a chemical reaction, generating minute bubbles which form the characteristic aicrete structure and appearance.

When the mixture has partially set, the resultant “cakes” are wire-cut into blocks or panels and transferred into autoclaves for high pressure curing.