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Cornerstone Group · Civil & Infrastructure
What We Deliver

Our
Service Capabilities

End-to-end civil construction services — from project conception to commissioning — with the capacity and expertise to deliver at national scale.

Civil Construction

Earthworks to Final
Finish

We execute large-scale earthworks, structural concrete, road surfacing, bridge construction, and site formation for roads, interchanges, and public infrastructure. Our plant fleet includes 200+ pieces of heavy equipment, operated by certified and experienced operators.

  • Earthworks & bulk excavation (up to 2M m³)
  • Reinforced concrete structures
  • Road base & asphalt surfacing
  • Bridge superstructures & substructures
  • Culverts, drainage & stormwater systems
  • Retaining walls & slope stabilisation
  • Site clearing and formation
Discuss Your Civil Works
Cornerstone Group heavy equipment during major excavation works
Cornerstone Group project management team at a highway planning review
Project Management

Full Lifecycle
Oversight

Our project management division provides comprehensive oversight of civil infrastructure projects from feasibility and tender stage through construction, commissioning, and defects liability. We manage time, cost, quality, and stakeholder relationships with discipline and transparency.

  • Feasibility studies & technical due diligence
  • Tender documentation & BOQ preparation
  • Construction programme & resource planning
  • Cost management & value engineering
  • FIDIC contract administration
  • Quality assurance & testing regimes
  • Stakeholder & community engagement
  • Commissioning & handover
Talk to Our PM Team
Specialist Subcontracting

Precision Works
for Principals

We provide specialist civil works to principal contractors and public agencies requiring specific technical expertise. Our specialist teams are equipped for deep excavation, piling, geotechnical works, and underground utilities in complex urban and rural environments.

Piling & Foundations

Driven, bored, and CFA piling for bridge abutments, tall structures, and deep foundations.

Geotechnical Works

Ground improvement, soil nailing, anchoring, and ground investigation for difficult terrain.

Deep Excavation

Sheet piling, secant piling, and strut-supported excavation for deep cuts in urban areas.

Utilities Installation

Water mains, sewer pipelines, duct networks, and trenchless installations.

Subcontract Enquiry
Cornerstone Group specialist piling and foundation works
Plant & Equipment

Fleet Capability

A LKR 12 billion plant fleet enables us to mobilise rapidly and execute concurrent projects across multiple locations.

48 Excavators
62 Dump Trucks
18 Bulldozers
24 Motor Graders
8 Piling Rigs
12 Asphalt Pavers
6 Concrete Batching Plants
15 Tower Cranes
22 Mobile Cranes
9 Drilling Rigs
35 Compactors
200+ Total Fleet Units
How We Work

Our Process

Inception & Feasibility

We engage from the earliest stage, providing constructability reviews and preliminary costings.

Tender & Planning

Detailed programme development, resource planning, and transparent BOQ preparation.

Mobilisation

Rapid site establishment with plant, personnel, and quality management systems in place before breaking ground.

Execution

Structured delivery under our ISO-certified quality, safety, and environmental management systems.

Handover

Thorough testing, commissioning, as-built documentation, and defects liability management.

Ready to Scope Your Project?

Our estimating team will review your requirements and provide a comprehensive, competitive tender response.

Get in Touch