Reliance Home Comfort Executive and Leadership Team

November, 2026

Leadership Overview

Reliance Home Comfort has 6 executives leading key functions including financial strategy, revenue growth, and residential service operations.

Committed to enhancing home efficiency across Canada, Reliance Home Comfort delivers essential heating, cooling, and water heater solutions through a robust network of professional maintenance and rental services.

Leadership Roles at Reliance Home Comfort

  • Chief Financial Officer - Demi Tsioros
  • Office Of The President - Gemma Willson
  • President, Mackenzie Plumbing & Heating Ltd (1989) - Douglas MacKenzie
  • Office Of The President - Nicole Cousley
  • Office Of The President - Karen Bisson
  • Chief Revenue Officer & Manager - William Lin
  • Demi Tsioros - Chief Financial Officer

    Demi Tsioros, the Chief Financial Officer at Reliance Home Comfort, directs all fiscal planning and capital allocation strategies. Overseeing the financial health of the organization, the Chief Financial Officer ensures rigorous budget management across all Canadian operations. This leadership role involves analyzing market trends in the HVAC and water heater rental sectors to optimize long-term profitability. By implementing advanced financial modeling, Demi Tsioros directly impacts the company's ability to scale infrastructure and maintain competitive pricing. Tsioros manages investor relations and regulatory compliance, ensuring transparency in all fiscal reporting. Through precise oversight of cash flow and investment portfolios, the Chief Financial Officer secures the necessary resources for sustained growth. Ultimately, Tsioros drives the financial stability required to support the expansive residential service network throughout Ontario and western Canada, reinforcing the market position of the firm.

    Gemma Willson - Office Of The President

    Gemma Willson, the Office Of The President at Reliance Home Comfort, directs high-level corporate strategy and organizational alignment. Overseeing the execution of executive directives, the Office Of The President ensures that all departments function in harmony with the core mission of providing reliable home services. This leadership role involves facilitating communication between the board and operational teams to streamline decision-making processes. By monitoring performance metrics across the Canadian service network, Gemma Willson directly impacts the efficiency of daily operations. Willson manages cross-functional projects that enhance the delivery of HVAC and water heater maintenance. Through the coordination of internal resources, the Office Of The President supports the implementation of new service standards. Ultimately, Willson drives organizational excellence by fostering a culture of accountability and operational precision, ensuring that the company meets the evolving needs of homeowners throughout the country.

    Douglas MacKenzie - President, Mackenzie Plumbing & Heating Ltd (1989)

    Douglas MacKenzie, the President, Mackenzie Plumbing & Heating Ltd (1989) at Reliance Home Comfort, directs specialized plumbing and heating service delivery. Overseeing the technical standards of the organization, the President, Mackenzie Plumbing & Heating Ltd (1989) ensures that all field operations meet rigorous safety and quality benchmarks. This leadership role involves managing the integration of specialized plumbing expertise into the broader residential service portfolio. By supervising technical training programs, Douglas MacKenzie directly impacts the quality of service provided to customers. MacKenzie coordinates with regional managers to ensure that plumbing and heating solutions remain at the forefront of the industry. Through the application of deep technical knowledge, the President, Mackenzie Plumbing & Heating Ltd (1989) optimizes service workflows and reduces response times. Ultimately, MacKenzie drives operational reliability, ensuring that the company maintains its reputation for high-quality residential maintenance and repair services across all active regions.

    Nicole Cousley - Office Of The President

    Nicole Cousley, the Office Of The President at Reliance Home Comfort, directs strategic initiatives focused on customer experience and service innovation. Overseeing the development of new service protocols, the Office Of The President ensures that the company remains responsive to the changing demands of the residential market. This leadership role involves analyzing feedback loops to improve the delivery of HVAC and water heater maintenance. By championing digital transformation projects, Nicole Cousley directly impacts the efficiency of customer interactions. Cousley collaborates with operational leaders to refine the service model, ensuring consistent quality across all Canadian territories. Through the oversight of key performance indicators, the Office Of The President identifies opportunities for process improvement and service expansion. Ultimately, Cousley drives customer satisfaction by aligning internal capabilities with market expectations, ensuring that the company continues to provide superior home comfort solutions to a growing client base.

    Karen Bisson - Office Of The President

    Karen Bisson, the Office Of The President at Reliance Home Comfort, directs corporate governance and internal policy development. Overseeing the implementation of strategic frameworks, the Office Of The President ensures that all business units adhere to the core values of the organization. This leadership role involves managing complex administrative functions that support the broader mission of the company. By streamlining internal communication channels, Karen Bisson directly impacts the agility of the executive team. Bisson coordinates with legal and compliance departments to mitigate risks associated with residential service operations. Through the oversight of organizational development initiatives, the Office Of The President fosters a productive work environment across the national footprint. Ultimately, Bisson drives operational stability by ensuring that all corporate policies support the long-term objectives of the firm, maintaining the commitment of the company to excellence in the Canadian home services industry.

    William Lin - Chief Revenue Officer & Manager

    William Lin, the Chief Revenue Officer & Manager at Reliance Home Comfort, architects all sales strategies and revenue generation initiatives. Overseeing the expansion of the rental and maintenance customer base, the Chief Revenue Officer & Manager ensures alignment with corporate growth targets. This leadership role involves managing regional sales teams to maximize market penetration in the residential HVAC sector. By optimizing the customer acquisition funnel, William Lin directly impacts the company's recurring revenue streams. Lin coordinates with marketing departments to refine service offerings, ensuring high demand for water heater and heating systems. Through the development of strategic partnerships, the Chief Revenue Officer & Manager expands the footprint of the organization across diverse Canadian markets. Ultimately, Lin secures consistent revenue growth by focusing on service excellence and customer retention, maintaining the status of the company as a leader in residential home comfort solutions.

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    Frequently Asked Questions Regarding Reliance Home Comfort Top Executives and Leadership Team

    Who leads Reliance Home Comfort?
    Reliance Home Comfort is led by Demi Tsioros (Chief Financial Officer), along with executives such as Gemma Willson (Office Of The President) and Douglas MacKenzie (President, Mackenzie Plumbing & Heating Ltd (1989)).
    Who is part of Reliance Home Comfort’s executive team?
    The executive team of Reliance Home Comfort includes leaders such as Demi Tsioros (Chief Financial Officer), Gemma Willson (Office Of The President), Douglas MacKenzie (President, Mackenzie Plumbing & Heating Ltd (1989)) and other senior executives.
    How many executives does Reliance Home Comfort have?
    Reliance Home Comfort has 6 executives leading key business areas.
    What roles are included in Reliance Home Comfort’s leadership team?
    The leadership team of Reliance Home Comfort includes roles such as Chief Financial Officer, Office Of The President, President, Mackenzie Plumbing & Heating Ltd (1989), Office Of The President, Office Of The President.