Our Services
Seven integrated disciplines covering the waterway, the quarry and the worksite, delivered by one accountable team.

Waterway Dredging
We undertake capital and maintenance dredging for rivers, canals, drains, ponds and coastal waterways. Removing accumulated sediment restores flow capacity, improves navigation and reduces flood risk for surrounding communities.
- River & canal desilting
- Maintenance & capital dredging
- Flood mitigation works
- Sediment handling & disposal

Industrial Sand Extraction
Our extraction operations recover industrial-grade sand from riverbeds and approved sites using suitable dredging and excavation equipment, with a strong focus on efficient recovery, quality control and environmental care.
- River sand dredging
- Land-based sand extraction
- Screening & washing
- Quality-graded output

Sand & Gravel Trading
We trade construction sand, industrial sand and gravel through retail and wholesale channels, backed by reliable haulage. We also handle the export and import of sand to meet larger or specialised demand.
- Retail & wholesale supply
- Export & import
- Bulk haulage & delivery
- Consistent material grading

Utility Construction
We construct utility infrastructure including water supply, sewerage, drainage and power-related works. From excavation and pipe laying to backfilling and reinstatement, our teams deliver the utilities that communities rely on.
- Water & sewer pipelines
- Drainage systems
- Cable trenching & ducting
- Road reinstatement works

Civil Engineering Works
Our civil engineering works cover earthworks, roads, drainage, pump sumps, retaining structures and reinforced concrete construction, delivered with strict attention to specification, safety and schedule.
- Earthworks & site preparation
- Roads & drainage
- Reinforced concrete structures
- Pump houses & sumps

Infra Supply
We source and supply the materials and components that keep civil projects moving, including aggregates, pipes, precast items and site consumables, coordinated around your construction programme.
- Aggregates & fill materials
- Pipes & fittings
- Precast concrete products
- Programme-based deliveries

Telecommunication Networks
We support telecommunication network projects with civil and installation works, including fibre optic cable laying, duct and manhole construction, and tower site preparation.
- Fibre optic cable laying
- Underground ducting & manholes
- Tower site civil works
- Network route surveys
Equipped for Demanding Sites
The right people and the right equipment, mobilised quickly and maintained to keep work moving safely.
Dredging Pumps & Vessels
For river, canal and pond dredging works.
Excavators & Earthmovers
For extraction, earthworks and site preparation.
Tipper & Haulage Fleet
For dependable sand, gravel and material delivery.
Survey Instruments
For setting-out, levels and progress verification.
Cable & Duct Installation
For utility and telecommunication networks.
QA / QC Procedures
For consistent quality and complete documentation.
Service Questions
Yes. Our integrated model lets us dredge, process and supply sand, giving clients a single point of contact from source to site.
Ready to Start Your Next Project?
Let's talk about how STT Infra can support your dredging, supply or construction requirements.