Engineering Services
Built for Sri Lanka
From high-rise buildings to national highways — A D Herath Engineering provides end-to-end civil and structural construction services across the full project lifecycle.
Building Construction
From single-storey residences to 20-floor commercial towers, we handle the complete building construction lifecycle — structural works, finishes, M&E installations, and final handover.
- Residential & apartment buildings
- Commercial office towers
- Industrial warehouses & factories
- Hotels & hospitality buildings
- Reinforced concrete & steel frame structures
- Complete MEP installations
Road & Highway Construction
We have extensive experience in road construction from rural access roads to national expressways — including full earthworks, pavement design, drainage, and road furniture.
- Expressways & national highways
- Urban road reconstruction
- Rural access road development
- Bridges & culverts
- Drainage & retaining walls
- Road markings & signage
Interior Fit-Out
High-quality interior fit-out for commercial, hospitality, and residential spaces. Our dedicated interiors team manages everything from false ceilings and partitions to bespoke joinery.
- Hotel & resort interiors
- Office fit-out & refurbishment
- Restaurant & retail interiors
- False ceilings & partition walls
- Custom joinery & woodwork
- Flooring & tiling works
Structural Engineering
Our in-house structural engineering team designs and builds complex structural systems — from deep foundations and post-tensioned slabs to large-span steel roof structures.
- Reinforced concrete design & build
- Steel fabrication & erection
- Post-tensioned slab systems
- Deep foundations & piling
- Retaining structures
- Structural assessments & retrofitting
Water & Drainage Infrastructure
Design and construction of water supply, sewerage, and stormwater systems for municipal authorities, government agencies, and private developers.
- Water treatment plants
- Water supply pipeline networks
- Sewage treatment facilities
- Stormwater drainage systems
- Pump stations
- Irrigation canals & reservoirs
Government & Public Sector
As a ICTAD C1-registered contractor, we are fully qualified for large government and public sector contracts — hospitals, schools, government offices, and national infrastructure.
- Government buildings & offices
- Public hospitals & health centres
- Schools & universities
- Police stations & courts
- Municipal infrastructure
- BOI & foreign-funded projects
Our Project Process
A transparent, structured approach from first contact to final handover — so you always know what's happening on your project.
Consultation
We meet with you to understand your project requirements, site conditions, timeline, and budget.
Site Visit & Survey
Our engineering team conducts a site assessment and produces a feasibility report.
Design & Quotation
We prepare detailed drawings, BOQ, and a transparent fixed-price quotation.
Contract & Mobilisation
Contracts signed, site team mobilised, materials procured, and work commences.
Construction
Daily site supervision with quality checks, safety inspections, and progress reporting.
Handover
Final inspection, punch list clearance, O&M manuals, and formal project handover.
Ready to discuss your project?
Contact our engineering team today. We provide free site visits and detailed quotations for all project types.