Maintenance & Repairs

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Maintenance & Repairs

ERTH’s highly trained experts can provide a variety of maintenance and repair services within the power distribution and municipal construction industries.

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ERTH maintains and repairs power distribution services for electric utilities, municipalities and private enterprise. ERTH’s full range of installation & maintenance service now includes high voltage substation services through our trusted partnerships we have established. We have built and maintained thousands of kilometres of distribution and transmission lines throughout Ontario. Our licensed journeymen are certified and highly trained in the most current construction and safety methods. This professional team has in-depth construction experience to deliver on time and on budget.


Electrical Distribution Maintenance Services

For installation, maintenance or repairs of existing power lines, our division specialists are trained in all live line work methods and techniques. Our service offerings include:

  • Overhead pole, maintenance & repairs
  • Underground distribution, maintenance & repairs
  • Emergency storm response
  • Switchgear maintenance
  • Breaker maintenance
  • Full grid tie services – distributed generation (solar, wind etc.)
  • High Voltage & Low Voltage metering installation & maintenance solutions (including MSP services)
  • Optical Ground Wire (OPGW) installation
  • All-Dielectric Self-Supporting (ADSS) installation
  • Turnkey design/build solutions
  • Distributed Generation (Solar, Wind) maintenance & repairs

Substation Maintenance Services

  • Complete High Voltage (HV) and Low Voltage (LV) system testing and maintenance
  • Infrared Thermographic Scans for proactive detection of poor connections and hot spots
  • Testing and oil analysis for power transformers and switchgear
  • Maintenance & repair service to damaged or aging equipment
  • Electrical system safety audits
  • Ground fault detection
  • PCB sampling and coordination of equipment disposal
  • Oil leak repairs, degasification


Traffic Signal & Street Light Maintenance Services