Contact Us | Thomas Armstrong (Concrete Blocks) Ltd

Part of the

Thomas Armstrong Group.

Lightweight and Dense

Ultralite - Lightweight

Insulite - Medium Dense

Solid Dense

Armstart - Foundation

Insulite Coursing Bricks

Slip Blocks

Infill Blocks

Rockfaced - Decorative

Ultralite - Lightweight

These lightweight aggregate blocks are designed to offer the builder a low weight, load-bearing block with enhanced thermal properties suitable for a wide range of applications.

Insulite - Medium Dense

Insulite blocks are the perfect versatile, all-round building blocks. These medium density concrete blocks consist of up to 90% recycled raw materials.

Solid Dense

Our Solid Dense Concrete Blocks with a ‘Standard’ finish provide an excellent surface for mortars, renders and plasters. They are our most durable and resilient block.

Armstart - Foundation

Widely used by major housebuilders, Armstart offers an efficient, simple and cost-effective method of block construction below damp proofing course (DPC).

Hollow - Dense

Hollow Dense concrete blocks are ideal for applications where a durable, lower-weight and high strength wall is required.

Cellular - Dense

Cellular offer a lower weight alternative to Solid Dense Concrete Blocks with an improved thermal performance.

Midi - Dense

MIDI ‘Standard’ texture finish is for general background applications whereas 'Paint-grade' finish is available for internal fair-faced applications.

Concrete Commons

Concrete Common units also known as ‘frogged bricks’ are coursing bricks which are designed to work in conjunction with Thomas Armstrong’s Dense Concrete Blocks.

Insulite Coursing Bricks

Insulite Coursing Bricks are coursing units designed to be used in conjunction with Thomas Armstrong’s Insulite Concrete blocks range.

Slip Blocks

To maintain coursing heights and aid the installation of block & beam flooring. These blocks are designed to work in conjunction with our Insulite or Dense Concrete Blocks

Infill Blocks

At Thomas Armstrong we also manufacture a bespoke range of infill blocks, rebated and non-rebated, for use in block & beam flooring.

Rockfaced - Decorative

Our Rockfaced blocks are highly decorative, close textured and extremely durable solid dense concrete blocks manufactured at our Congleton and Aintree facilities.

Airtec Aerated

Airtec Large - Flooring

Airtec Foundation 140mm

Airtec Foundation 215mm

Airtec Brickettes

Airtec XL

Airtec XL is our lowest weight and thermally best performing wall blocks in our entire Airtec block range, possessing a thermal conductivity value of only 0.09 W/mK

Airtec Standard

Airtec Standard are the perfect all-round residential aerated concrete blocks giving you a combination of medium strength and high thermal performance in one block.

Airtec Party Wall

Airtec Party Wall blocks are specifically designed to retain the excellent thermal properties and technical performance of Airtec aerated blocks.

Airtec Seven

Airtec Seven blocks possess high load-bearing capacity and excellent thermal performance. Perfect for higher-rise applications.

Airtec Large - Walls

Airtec Large wall blocks are designed to provide significantly improved thermal insulation and air-tightness for internal and external walls.

Airtec Large - Flooring

Our 140mm Airtec Foundation blocks are designed as a lightweight, easy to lay, speedy and cost-effective alternative to traditional cavity foundation walls.

Airtec Foundation 140mm

Our 140mm Airtec Foundation blocks are designed as a lightweight, easy to lay, speedy and cost-effective alternative to traditional cavity foundation walls.

Airtec Foundation 215mm

Our 215mm Airtec Foundation blocks are designed as a lightweight, easy to lay, speedy and cost-effective alternative to traditional cavity foundation walls.