Precast Products Platform - Sigma PPG

Sigma PPG (Precast, Prestressed group) is a cluster of companies specialising in manufacturing precast concrete products. With locations in east & central England as well as London we supply a wide and diverse range of industries ranging from house builders and farmers to sea defences and car parks contractors. Our companies are some of the most experienced and innovative in the industry; some operating for over 70 years while others hold a record amount of patents licenses under their belt.

Platform's companies:

Allen Concrete

Allen Concrete manufactures precast concrete products for the fencing and building industries.

Plants in Surrey and Northamptonshire utilise modern production methods and machinery backed by careful quality control for the mass production of a large range of standard products.

The company’s expertise in the field of precast concrete production is based on more than 60 years’ experience, and is available to support the manufacture of all types of special units.

Large stocks and regular deliveries ensure the fast and efficient despatch of products throughout the country.
The company has many years’ experience as supplier to Ministry contracts and to county and local authorities, public utilities and rail networks.


Poundfield Products Ltd

Poundfield Products Ltd is a precast and prestressed concrete manufacturer bases in the heart of the agriculture, in Suffolk.

Founded in 1999 by Mark Jardine, whose life experience of working on the family farm and the on-site problems of many existing retaining wall systems led him to the design of the Alfabloc®.

An innovative design of a precast concrete retaining walling system that was – quite simply – quicker and easier to install than any competing product. It has no protruding toe and in many cases can be used freestanding. The Alfabloc® was immediately successful and today is manufactured not just in Suffolk, but also under license in Ireland and mainland Europe.