Reliance Home Comfort Executive and Leadership Team

May, 2026

Leadership Overview

Reliance Home Comfort has 8 executives leading key functions including finance, information technology, revenue generation, cybersecurity, and presidential oversight.

Driven by a commitment to customer satisfaction, Reliance Home Comfort focuses on providing essential residential services, ensuring comfort and reliability across Canada through rental, sales, and maintenance of critical home systems.

Leadership Roles at Reliance Home Comfort

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

    Demi Tsioros, the Chief Financial Officer at Reliance Home Comfort, directs the company's financial strategy and operations. This leadership role involves managing all fiscal activities, including budgeting, financial planning, and reporting, ensuring the company's financial health and stability. Tsioros oversees the accounting department, implements financial controls, and analyzes financial performance to support strategic decision-making. The Chief Financial Officer's responsibilities extend to managing investor relations and securing necessary funding for operational expansion and capital investments. By optimizing financial processes and identifying cost-saving opportunities, Demi Tsioros drives efficiency across the organization. This executive ensures compliance with all financial regulations and standards, safeguarding the company's assets and reputation. The Chief Financial Officer's strategic insights are crucial for navigating market fluctuations and achieving long-term profitability for Reliance Home Comfort.

    Nicole Cousley - Office Of The President

    Nicole Cousley, the Office Of The President at Reliance Home Comfort, provides strategic support and operational oversight to the presidential function. This executive role involves coordinating key initiatives, managing stakeholder communications, and ensuring alignment with the company's overarching mission. Cousley facilitates critical decision-making processes by gathering and analyzing relevant business intelligence. The Office Of The President contributes to strategic planning and the execution of corporate objectives across residential services. Nicole Cousley works to enhance operational efficiency and drive performance improvements throughout the organization. This leadership position requires a deep understanding of the company's market presence in Canada, including its operations in Ontario and western regions. By championing strategic priorities, Nicole Cousley supports the sustained growth and market leadership of Reliance Home Comfort.

    Karen Bisson - Office Of The President

    Karen Bisson, the Office Of The President at Reliance Home Comfort, contributes to the strategic direction and operational excellence of the company. This executive role focuses on enhancing business performance and ensuring the effective implementation of corporate strategies. Bisson oversees key projects and initiatives that drive growth and improve customer satisfaction in the residential services sector. The Office Of The President plays a crucial part in fostering a culture of innovation and accountability across departments. Karen Bisson collaborates with cross-functional teams to optimize service delivery and operational workflows. This leadership position is instrumental in maintaining Reliance Home Comfort's strong market position in Canada. By driving strategic alignment and operational improvements, Karen Bisson supports the company's long-term vision and success.

    Gemma Willson - Office Of The President

    Gemma Willson, the Office Of The President at Reliance Home Comfort, directs critical strategic operations and supports the company's executive leadership. This role involves overseeing key business functions and ensuring the seamless execution of company-wide objectives. Willson focuses on enhancing operational efficiency and driving performance improvements across all service areas, including water heaters and HVAC systems. The Office Of The President is responsible for fostering strong relationships with internal teams and external partners. Gemma Willson contributes to strategic planning and the development of initiatives that support market expansion and customer retention. This executive's insights are vital for navigating the competitive landscape of residential services in Canada. By championing strategic priorities, Gemma Willson reinforces Reliance Home Comfort's commitment to quality and reliability.

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

    Douglas MacKenzie, the President, Mackenzie Plumbing & Heating Ltd (1989) at Reliance Home Comfort, leads the strategic direction and operational management of the plumbing and heating division. This executive role involves overseeing all aspects of service delivery, ensuring high standards of quality and customer satisfaction. MacKenzie drives business development initiatives and manages key relationships within the industry. The President, Mackenzie Plumbing & Heating Ltd (1989) is responsible for the financial performance and growth of the division, aligning its operations with the broader company objectives. Douglas MacKenzie focuses on optimizing resource allocation and implementing innovative solutions to meet market demands. This leadership position is critical for maintaining Reliance Home Comfort's reputation for reliable residential services. By guiding the plumbing and heating operations, Douglas MacKenzie ensures continued success and market penetration.

    Celso Mello - Chief Information Officer

    Celso Mello, the Chief Information Officer at Reliance Home Comfort, architects the company's technology strategy and oversees all IT operations. This critical role involves managing the infrastructure, systems, and digital transformation initiatives that support business objectives. Mello is responsible for ensuring the security, reliability, and scalability of the company's technology platforms, which are essential for delivering residential services across Canada. The Chief Information Officer directs the IT department, guiding teams in software development, network management, and data analytics. Celso Mello's focus includes implementing innovative technological solutions to enhance operational efficiency and customer experience. This executive ensures that IT investments align with the company's growth strategy and market demands. By driving digital innovation, Celso Mello strengthens Reliance Home Comfort's competitive position and operational resilience.

    William Lin - Chief Revenue Officer & Manager

    William Lin, the Chief Revenue Officer & Manager at Reliance Home Comfort, spearheads all revenue-generating activities and sales strategies. This executive role encompasses direct oversight of sales teams, business development, and customer acquisition efforts across Ontario and western Canada. Lin is tasked with driving top-line growth by identifying new market opportunities and optimizing sales channels for water heaters and HVAC systems. The Chief Revenue Officer & Manager analyzes market trends and customer needs to refine product offerings and pricing strategies. William Lin works closely with marketing and operations to ensure a cohesive approach to customer engagement and service delivery. This leadership position involves setting ambitious revenue targets and implementing programs to achieve them. By fostering strong customer relationships and expanding market reach, William Lin directly contributes to Reliance Home Comfort's sustained financial success and operational scale.

    Sahil Chopra - Manager, CyberSecurity & Chief Information Officer, Office

    Sahil Chopra, the Manager, CyberSecurity & Chief Information Officer, Office at Reliance Home Comfort, leads the company's cybersecurity initiatives and information technology governance. This dual role ensures robust protection of sensitive data and critical infrastructure against evolving cyber threats. Chopra oversees the development and implementation of comprehensive security policies, protocols, and incident response plans. The Manager, CyberSecurity & Chief Information Officer, Office directs efforts to maintain system integrity and compliance with data privacy regulations across all operational regions. Sahil Chopra collaborates with IT teams to integrate security measures into all technology deployments and daily operations. This executive's expertise is vital for safeguarding customer trust and business continuity. By strengthening the company's cybersecurity posture, Sahil Chopra protects Reliance Home Comfort's assets and reputation in the digital landscape.

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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 Nicole Cousley (Office Of The President) and Karen Bisson (Office Of The President).
    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), Nicole Cousley (Office Of The President), Karen Bisson (Office Of The President) and other senior executives.
    How many executives does Reliance Home Comfort have?
    Reliance Home Comfort has 8 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, Office Of The President, Office Of The President, President, Mackenzie Plumbing & Heating Ltd (1989).