Llanharan Concrete & Builders Merchants Ltd Company Logo

Contact us today on: 01443 226 212

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Builder’s merchant with over 50 years of experience

Range of building supplies in Cardiff, Bridgend & Llantrisant

Llanharan Concrete, established 50 years ago, is a family run concrete building block supplier and builder's merchant in South Wales.


We provide a wide range of building supplies to help you complete all kinds of projects. From DIY products to aid you at home to supplies for large commercial projects, we are here to help.

• Concrete bricks

• Ready Mixed Concrete

• Dense concrete blocks

• Aggregates

• Insulation

• Ironmongery

• Tools & fixings

• Sheet materials

• Fencing & decking

• Paving slabs

• Decorative stone

• Wall cappings

• Landscape fabrics

Major construction contracts:

Unsure what building materials you require? We are happy to help and advise! Call us on

Our building supplies include:

Llanharan Concrete have supplied major construction contracts across South Wales, such as The Liberty Stadium, Ikea, Marks & Spencer in Cardiff, The Millennium Centre as well as numerous major house builds.

Timber Examples of paving Home-page-2 Football pitch Stadium building