We are Part of the Thomas Armstrong Group
Home of Airtec
The best thermally efficient blocks
currently available in the UK
Meet the high demands of every build with our diverse range of concrete blocks
Future proof your project with our
25-year guarantee on all our
Block Paving Products
With multiple offices and factories located across the North of England, our comprehensive concrete block product range features high quality Lightweight Aggregate Blocks, Dense Concrete Blocks and Airtec Aerated Concrete Blocks for various building requirements across commercial and residential developments. Our Block Paving Bricks range features 'The Lakeland Range' and 'The Armstrong Range' including kerbs and accessories along with a 25-year guarantee.
All our Concrete Block products are compliant to all the latest technical and environmental standards for use in foundation walls, internal walls, acoustic separating walls, thermally insulating walls and permeable paving solutions for driveways.
Make sure you look at our building blocks range today and let us help you to build your next project!
Lightweight and Dense Concrete Blocks
Build Smart & Beautiful
Airtec Aerated Concrete Blocks
Amongst the most environmentally friendly building products available
Irresistably instagramable Paving that’s made to last
Thomas Armstrong continues its expansion
Thomas Armstrong (Holdings) Ltd are pleased to announce their latest acquisition of the Sellite Blocks Limited, a Yorkshire based building block manufacturer. Based in Great Heck near Leeds, Sellite Blocks Limited is a well-established and highly regarded building block manufacturer of eco-friendly building blocks. View more...
Our new Leeds concrete block plant achieves BES 6001 'Excellent' status.
Our new multi-million pound Stocks Bros Ltd concrete block plant in Cross Green Leeds has achieved the highest possible rating of 'Excellent' to the Responsible Sourcing standard BES 6001. This is only the 2nd block plant anywhere to have ever achieved this, the first being our Airtec aerated block plant in Catterick. View more...
Industry-first BES 6001 Responsible Sourcing 'Excellent' rating achieved!
Thomas Armstrong (Concrete Blocks) Limited have become the first block manufacturing company to achieve the highest possible rating of 'Excellent' to BES 6001 Issue 3.0 for Airtec aerated block manufacture. Stocks Bros Ltd achieve a 'Very Good' rating! View more...
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LIGHTWEIGHT AGGREGATE BLOCKS
Designed to offer a low weight, loadbearing block with enhanced thermal properties suitable for a wide range of applications.
Lightweight & Dense Concrete Blocks
Our Most Popular Blocks
AERATED CONCRETE BLOCKS
The perfect all-round aerated concrete blocks giving you a combination of medium strength and high thermal performance in one block.
THE ELEGANT RANGE
Available in 8 different colours. Suitable for residiential drives, paths, patios or lightly trafficked roads.
The Lakeland Range
Thomas Armstrong (Concrete Blocks) Ltd
Part of the Thomas Armstrong (Holdings) Ltd
T: 01900 68211
F: 01900 602672