Breedon Aggregates has announced the acquisition of Barr Quarries for more than £20m.
The company is a division of Barr Holdings, which also has construction, civil engineering and environmental businesses.
Breedon said Barr Quarries was the market leader in aggregates in south-west Scotland and it expects to complete the deal by the end of this month.
It follows Breedon’s acquisition of Cotswolds-based aggregates firm Huntsman’s Quarries for £15m in June.
In Scotland, Breedon had bought £34m of Aggregate Industries’ Scottish assets in 2013, but was told to sell two Scottish assets by the Competition and Markets Authority in April this year, as well as being subject to asphalt price controls in the area until 2018.
Barr Quarries employs around 130 people and is headquartered near Cumnock, 35 miles south of Glasgow.
It operates 11 quarries, five asphalt plants and six ready-mixed concrete plants and has approximately 57m tonnes of mineral reserves and resources. The company also operates a contract surfacing business.
In the year to 31 December 2013, Barr Quarries had revenue of £25.5m with underlying EBITDA of £2.7m.
Breedon chairman Peter Tom said: “Scotland has played a vital part in Breedon’s success and we have made significant investments there over the past four years.
“With the uncertainties surrounding the independence issue now behind us, we believe our prospects north of the border have never been brighter and we can look ahead with renewed confidence.
“Our acquisition of Barr Quarries is a clear demonstration of our long-term commitment to this important market.”
Barr Holdings chairman Philip Cheevers said: “I am pleased with the sale of our quarry interests to Breedon.
“This will give the quarry business the opportunity to further grow and develop under the umbrella of a major aggregates company and we wish them every success.
“At Barr we will continue to focus on our core construction business, which is performing well, and on our environmental business, which has made significant progress over the last few years and is trading very strongly.”
Among Barr’s recent contract wins has been its appointment to rebuild Bristol City FC’s Ashton Gate stadium in a £45m contract.