Onos Technical Services Nigeria Limited
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Electical Installations

Our installation works are done to the standard of the National ministry of power and steel, Power holding company Nigeria, CNL standard. Our electrical services includes:
High Voltage: Our company does not limit itself to L.V. installations and is able to offer its clients' a full design and installation of HV/LV systems, both temporary and permanent.
Heavy Industrial Installations: All aspects of industrial installations are undertaken throughout Nigeria,  regardless of their size.
Marine Installations: Throughout its years of business Onostech  has been responsible for many marine projects, both new and refurbishment.
Commercial Installations: Commercial and Industrial installations form the backbone of the company’s day to day operations. Our commercial side covers all manner of works including factory and office installations, amenity-lighting and even town centre and private clients’ Christmas lighting.
Fire Alarm Installations: Fire Alarm projects are also common place for our company, from single zone to multizone, conventional and addressable installations; we are able to offer our clients the complete range of installations.


  • Electrical Design, Installation Commissioning & Maintenance (Single 230V & three phase 400V)
  • Hazardous Area Electrical Installation, Maintenance & Inspection
  • Small Power and Lighting Installations
  • LV Power Distribution
  • Production Line and Machinery Installations and Relocations
  • Containment (tray, ladder rack, basket tray, trunking, conduit, dado rail etc)
  • Cable Sizing, Procurement & Installation
  • Cable Glanding and Termination
  • Control Panel Design & Build
  • Periodic Inspection and Testing
  • Portable Appliance Testing (PAT)
  • Instrumentation
  • Personnel Hire
  • Commissioning
  • Maintenance


Through longstanding global alliances and networks, Onos Tech is able to efficiently source anything for our clients - anywhere - from highly trusted sources. Our partnerships allow us to achieve the ideal purchase: targeting value, product quality, and an optimal logistics solution to save time and money.
Our equipment manufacturers are based worldwide. We can organise spare part distribution and co-ordinate a wide variety of Oil and Gas procurement product and services from locations around the globe, achieving shorter delivery times to our clients.
In addition, our agile operating model is capable of adjusting to variations in project size and workload to achieve cost savings to our clients. Count on Onos Tech to consistently deliver improved procurement quality with clear visibility into the process and tracking to aggressive performance standards.
Our procurement team brings unparalleled leadership and experience to developing proven procurement and supply chain services, ensuring that our clients receive what it promised, when it is promised, in a timely, well-executed manner. We always meet and exceed our customers requirements

Instrumentations and Controls

We are specialists in specifying, procuring, calibrating, installing, tubing, loop checking, commissioning and maintaining instrumentation and control systems for a wide range of industrial and commercial process control applications, ensuring that your plant operates safely.
Our Instrumentation & Control Services include:
  • Instrumentation and Control Installation, Commissioning & Maintenance
  • Hazardous Area Instrument Installation, Maintenance & Inspection
  • Process & Pneumatic Pipe Fitting (impulse lines, air headers, control valves, SOV’s, analysers etc)
  • Control Panel Design & Build
  • Instrument Enclosures
  • Calibration & Repair
  • Loop Checks
  • Control net
  • Ethernet
  • Fibre Optic Networks
  • Pressure / Level / Flow / Temperature Control
  • Intrinsically Safe Instrumentation
  • PLC Installations
  • Pneumatic Systems
  • Personnel Hire
  • Commissioning
  • Maintenance

  Inspection & Tests

Onos Techical Services offer a full test and inspection service to establish the safety of installations and on-going periodic testing to identify any possible deterioration, regardless of how big or small.

Civil Works

We are aware that quality construction is cost effective, durable, safe and above al achieves customers satisfaction


In view of the nature of our business in the construction, oil and gas industry with notable reference to standard safety, Health, and environmental practices, Onos Tech has established this POLICY which shall be the guiding force behind all her activities.


    To maintain quality health, and safety at our work site, Onos adopts this policy to carry out her operations in a proper and orderly manner that the safety and health of our employees and others...


    The company is committed to ensuring clean and healthy environment, especially in the course of our operations.


    We hold quality with high esteem and shall ensure that our services are rendered in line with acceptable standards and in compliance with client’s requirements.