We are one of the country's largest independent block manufacturers. Operating across eight manufacturing sites throughout the North of England and offering a comprehensive range of building blocks and related products. Our group of block manufacturing companies include Stocks Bros Ltd in Leeds, Coulthard Concrete Products Ltd in Cumbria, William Rainford (Holdings) Ltd in Aintree and Barnetts (of Buglawton) Ltd in Congleton Cheshire.
Product catalogue
A comprehensive product and technical brochure for all concrete blocks within our range including...
Product catalogue
A unique, detailed and comprehensive series of solutions for meeting a range of current and futur...
AIRTEC Large Format Block
Autoclaved aerated concrete large format blocks.

E60 Precast/ composite concrete floors/ roof decks
AIRTEC Wall Block
A range of autoclaved aerated concrete blocks in various formats including standard and XL.

F10 Brick/ block walling
Thomas Armstrong (Concrete Blocks) Ltd is certified to the following Quality Assurance schemes/standards:
BBA Certificate 06/4309 – Airtec aircrete blocks and thin-joint system
Thomas Armstrong (Concrete Blocks) Ltd provides goods and services in the following areas: