Sub Metering

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Since 2007, Langstaff & Sloan Inc. has been very involved in sub metering high rise apartments, condominiums, and commercial buildings. To date, we have been responsible for the individual metering of at least 100,000 tenant spaces.

We have experience in all aspects of Submetering including:

  • Design and electrical layout
  • Coordination and communication with the tenants and property managers
  • Installation of the system
  • Arrangement of all required permits, such as E.S.A. Certificates

End-to-End Electrical Submetering Expertise

At Langstaff & Sloan Inc., our submetering solutions are tailored to meet the evolving energy accountability needs of modern high-rises and commercial properties. As energy consumption becomes a core operating concern for building owners, our team brings decades of practical experience to help streamline cost control through precise, code-compliant electrical submetering.

With every submetering system we implement, our priority remains threefold:

  • Ensure accurate tenant-level consumption tracking
  • Maintain compliance with all Ontario Electrical Safety Code requirements
  • Deliver a hassle-free project experience from start to finish


Our long-standing relationship with utilities in Toronto ON and the Greater Toronto Area adds a layer of trust and continuity to the electrical submeter installation process—especially valuable in high-density residential or mixed-use developments.

Tailored Submetering Services for Existing and New Properties

Our submetering services are designed with flexibility in mind. From new construction to retrofitted buildings, we provide customized support that includes:

  • Site-specific assessments to determine the most cost-effective metering layout
  • Seamless integration with building management systems
  • Strategic coordination with other trades during retrofit phases
  • E.S.A. permit management and scheduling


We’ve helped buildings in Toronto ON and across the province navigate complex installations with minimal disruption to tenants and daily operations—earning us a reputation as one of the most reliable submetering companies in Ontario.

Why Submetering Matters for Property Managers

For property managers and condo boards, implementing an electric submeter system provides a clear financial advantage. By isolating tenant usage, buildings can:

  • Eliminate bulk billing disputes
  • Encourage energy-efficient behaviour
  • Improve utility transparency for tenants
  • Reduce operational overhead in energy management


As an experienced contractor in submetering Ontario, we ensure every installation is tailored for accuracy, longevity, and ease of maintenance.

Simplicity, Safety, and Scalability Built Into Every Metering Project

We understand that a submetering system is more than a utility accessory—it’s a long-term infrastructure investment. That’s why we prioritize:

  • Safe, code-compliant electrical work performed by licensed electricians
  • Scalable systems that allow for future unit conversions or building expansions
  • Clear documentation and labelling for ongoing property management


As one of the few submetering companies with both deep technical capability and a track record dating back to 1991, Langstaff & Sloan Inc. remains a trusted partner for electrical submetering across Toronto and beyond.

Thinking Long-Term: Future-Proof Submetering Installations

Energy policy in Ontario continues to evolve. That’s why our submetering solutions account for emerging trends such as:

  • EV charging integrations in multi-unit residential buildings
  • Real-time energy monitoring via smart metering
  • Compliance with Green Building Standards and LEED certifications


By working with Langstaff & Sloan Inc., you’re partnering with a team that not only understands today’s code but anticipates tomorrow’s expectations.

Serving Toronto, ON with Trusted Electrical Submeter Installation

With more than 100,000 tenant spaces sub-metered to date, Langstaff & Sloan Inc. remains a leader in Ontario submetering. Our reputation is built on technical excellence, clear communication, and seamless project execution.

Looking for professional submetering services that stand the test of time? Count on us to deliver trusted results—backed by decades of electrical expertise and a legacy of service in Toronto, ON.