Piles

Piles serve as the essential foundation elements for modern construction, transferring heavy structural loads safely into stable ground layers. These deep foundation members are typically constructed from reinforced or non reinforced concrete, designed to meet specific soil and load conditions.
Depending on project requirements, piles can be installed as bored, driven, or continuous flight auger (CFA) types. They can function individually to support isolated loads or in groups to form retaining or load-bearing systems such as secant or contiguous pile walls, which provide both structural stability and groundwater control.
Each pile’s diameter, depth, reinforcement, and installation method are carefully engineered to suit the site’s geotechnical conditions and ensure long-term foundation performance.

Sheet piles

We offer comprehensive sheet piling solutions for projects requiring strong and reliable earth retention or excavation support systems.
Our Sheet Pile Services include the design, supply, installation, and extraction of both temporary and permanent sheet piles, ensuring stability and safety in challenging soil and groundwater conditions.
Using advanced piling equipment and engineering techniques, OnTech delivers precise and efficient installations for excavations, cofferdams, foundations, basements, quay walls, and other civil infrastructure works.
Each solution is carefully engineered to consider project-specific geotechnical conditions, structural requirements, and environmental factors, guaranteeing performance, durability, and compliance with the highest safety standards.

Grouting

In some challenging ground conditions, grouting becomes the preferred solution for effective dewatering and soil stabilisation.
Grouting is the process of injecting pumpable materials into the soil or rock formation to alter its physical and hydraulic properties. This technique is ideal for areas with high soil permeability, where traditional dewatering methods would require excessive pumping, or where installing wells is not economically feasible.
Ontech’s engineering expertise, proven experience, and advanced equipment fleet enable us to deliver precise and efficient grouting works. We ensure controlled groundwater conditions, improved soil stability, and reliable performance tailored to project requirements.

Soil Improvement

Soil improvement involves enhancing the engineering properties of weak or unstable soils to increase strength, reduce settlement, and improve load-bearing capacity.
Ontech offers engineered soil improvement solutions tailored to site conditions, ensuring stability and safety for all construction activities.

Dewatering

We deliver comprehensive dewatering solutions tailored to meet the specific needs of projects of all sizes and complexities.
From groundwater investigation and hydrogeological modelling to the design, installation, and operation of advanced dewatering systems including sump pumping, wellpoint, and deepwell systems. OnTech offers a comprehensive, end-to-end solution for effective groundwater control.
Utilising the latest engineering tools, modelling software, and field-proven technology, OnTech ensures each solution is optimised for efficiency, safety, and environmental compliance while aligning with project timelines and objectives.

Water management (Over Pumping)

Overpumping is a key component in many construction and rehabilitation projects. Temporary overpumping systems are employed to divert water from waterlogged areas or standing water sources, ensuring that essential site operations continue uninterrupted during construction activities.
At Ontech, overpumping is executed using a variety of pumps, including self-priming centrifugal pumps, electrically-driven submersible pumps, and hydraulically-driven submersible pumps, all connected to robust HDPE pipelines capable of handling high flow rates as required.
Ontech boasts a versatile fleet of equipment and a team of skilled engineers with extensive experience in designing and implementing overpumping solutions for diverse site conditions.

Anchoring

Ground Anchors are structural elements, typically composed of high-strength rods or cables connected to bearing plates, used to stabilise slopes, embankments, or foundations. They are particularly effective in steep terrains, soft soils, or areas prone to erosion and landslides. By transferring loads from unstable soil to deeper, more competent layers, ground anchors enhance slope stability, increase soil bearing capacity, and reduce the risk of structural failures.
Ontech, offers a comprehensive range of ground anchoring solutions, supported by specialised equipment and a team of experienced engineers. Our expertise allows us to design and implement ground anchoring systems tailored to diverse geotechnical conditions, ensuring safety, efficiency, and long-term stability for projects across the region.

Hydro Demolition

Hydro-Demolition uses high-pressure water to remove deteriorated concrete, asphalt, or grout, providing a clean surface for repairs or new coatings. Suitable for horizontal, vertical, and overhead applications, it effectively works around embedded elements like rebar, joints, and anchors.
Ontech combines a specialised hydro-demolition fleet with skilled engineers to deliver precise, safe, and efficient surface restoration and preparation across diverse projects.

System flushing

With a purpose-built fleet, advanced flushing technologies including real time reporting and remote monitoring and extensive experience handling complex projects, Ontech applies industry best practices to ensure efficiency and reliability. This expertise contributes directly to improved project schedules, optimised operations, and enhanced overall project outcomes.

Ontech delivers expert Plant, Network, and Building Flushing services using a purpose built fleet and advanced technologies, including live monitoring and reporting. Our experienced team applies industry best practices to ensure efficient operations, timely project delivery, and optimised results.

Monitoring and Control

Ontech offers advanced remote monitoring, control, and automation solutions for a wide range of fluid applications and equipment. These systems help minimise manpower requirements, reduce the risk of human errors, and improve real time visibility and situational awareness for all project stakeholders.