Cahill Technical Services is an Electrical, Instrumentation & Control (EI&C) engineering and systems integration specialist as well as a building automation system integrator based in St. John’s, NL with a satellite office in Dartmouth, NS.

A division of the Cahill Group, Cahill Technical Services is one of the largest industrial and commercial services companies in Atlantic Canada.

Established in 1998 as an instrumentation calibration lab serving the Eastern Canadian offshore oil industry, Cahill Technical Services has evolved on the strength of its client relationships to become a full-service automation systems service provider focused on industrial, institutional, commercial, and oil & gas markets.

The Cahill Group’s Quality Management systems are ISO 9001:2015-registred. Cahill Technical Services is a registered engineering company with PEG-NL.

Excellence through collaboration.

Cahill Technical Services relies on collaboration with associations and other stakeholders to continue building knowledge, expertise, and delivering value. We are members of provincial engineering, construction, and safety associations and are aligned with the following organizations.

Trusted supply chain partnerships.

We have extensive experience with many world-class suppliers for the implementation and operational maintenance of their products. We recognize these products as trusted, reliable, best-value solutions with excellent product support organizations before and after the sale.

Cahill Technical ServicesAreas of Expertise

Design-Build & Specialized Services

  • Engineering and design services
  • Industrial / Building Controls Integrator (PLC & HMI development, SCADA, telemetry, BTL Listed, BacNet & Modbus capabilities, API development and commissioning)
  • Systems Integration (Intelligent Buildings, Building Automation Systems, Industrial Automation Systems, Energy Management)
  • Custom Design Solutions (E-Houses, Pump Skids, Power Generation)
  • Power Systems (Arc Flash, Coordination, and power systems studies)
  • Fuel Polishing equipment installations
  • Sales and rentals
  • CSA certified panel shop
  • ISO certified calibration lab

Renewables & Sustainability

  • Design / build solar installations
  • Energy usage monitoring, analytics, and consulting
  • Energy efficiency retrofits and upgrades
  • Electric Vehicle (EV) charger consult, design, supply, fabrication, install, commission and service
  • Intelligent Building Systems
  • Critical environment controls
  • Diesel fuel polishing, mobile and stationary options
  • Water and wastewater solutions
  • Modular Process Packages
  • Solid waste reduction technology

Facilities Management

  • Integrated facility management.
  • Preventative & predictive maintenance, planning and remote monitoring
  • Computerized Maintenance Management System (CMMS)
  • Demand and corrective actions
  • Building Management Systems (BMS) Systems
  • Automatic Fault Detection and Diagnostics (AFDD) Support
  • Building envelope
  • Landscaping including snow clearing, pest control, grounds

Emergency & Field Support Services

  • Electrical and building automation
  • Startup and commissioning
  • EI&C (Testing, Repair, Calibrations and In-situ Panel modifications)
  • Power systems electrical testing and maintenance
  • Utility & Transformer testing
  • Thermal Infrared (IR) scanning
  • Authorized representative for Rivertrace oil in water analysis
  • Authorized representative for Eaton UPS (sales, installation, service and commissioning)

Select Projects

Photovoltaic (Solar Panel) Design, Supply & Install & Commissioning


Electric Vehicle Charging Stations


Water Treatment Plant Upgrades


Hot Water Storage Skid

Oil and Gas

View All Projects


Cahill Technical Services

2-4 Southern Cross Road
Mount Pearl NL A1N 5A2, Canada


24/7 Service and Support


The Cahill Group is taking measures to ensure business continuity while prioritizing the health and safety of our people, companies, clients and communities. We remain open with revised visitor protocols, physical distancing requirements, increased cleaning, staggered work hours, and remote work arrangements. To keep employees safe, we are following advice from public health officials.