The Lagan Group is made up of a network of businesses covering the full spectrum of quarrying, building materials, house building, contracting and civil engineering. Diverse, yet complementary, our businesses share a sustainable approach, customer–centric outlook and progressive ethos.
Based in Dublin, Lagan Asphalt Group is one of Ireland’s leading quarry materials, asphalt, bitumen and civil engineering businesses servicing Ireland, the UK and global markets.
Importers, manufacturers and distributors of advanced binder and emulsion products.
Innovative, modular buildings that are stylish, energy efficient and quick and easy to construct.
The biggest house builder in Northern Ireland with an outstanding reputation for quality and design, and a growing reputation in England.
Our cement and clay products division produces a range of products including bulk and bagged cement, sand, roof tiles, ready mixed concrete, concrete blocks, clay bricks, flu liners and chimney systems.
Providers of the finest natural slate in the world, Welsh Slate is renowned for its roofing slate and architectural stone.
Based in Lisburn, Whitemountain is Northern Ireland’s market leader in quarry materials, asphalt, surfacing, airfield maintenance, highway maintenance, bitumen and civil engineering servicing both local and British markets.