About us

Diack and Macaulay Ltd, established in 1980, we are a civil engineering company, specialising in civil engineering projects, bridge works, and highway safety fencing contracts for our clients.

The company is a family run business, striving to carry out our contracts to a high standard and within programme.  Our aims are always to look for new sustainable systems and procedures.  We at Diack & Macaulay Ltd, pride ourselves on our family values and always looking to strive forward in new directions.

In recent years we have added to our full scope of works, Structural Waterproofing and Precast concrete solutions.  All managed under the control of our ISO9001:2015 quality management system.

Our recent clients include: 

• Bear Scotland / Transport Scotland – Parapet and Safety fencing
• North Lanarkshire Council – various civils, bridge and safety fence works
• East Dunbartonshire Council – all our scopes
• West Lothian Council – all our scopes
• Argyll and Bute Council – bridge works
• Aberdeen city council – bridge works
• Aberdeenshire council – bridge works, waterproofing systems
• Highland council – bridge, civils and precast concrete
• Raynesway Construction Ltd – safety fencing works
• Tarmac National Contracting Ltd – safety fencing works
• Lanarkshire Welding Company ltd – precast concrete and bridge works
• Inverclyde Council – civil works
• East Ayrshire Council – civil works
• Perth and Kinross Council – civils, bridges, waterproofing, precast
• Advanced construction – precast, waterproofing and safety fence
• Graham Civils – safety fence