Reliance Home Comfort Executive and Leadership Team

June, 2026

Leadership Overview

Reliance Home Comfort has 8 executives leading key functions including information technology, finance, revenue generation, cybersecurity, operations, and executive leadership.

Driven by a commitment to customer satisfaction, Reliance Home Comfort provides essential residential services across Canada, focusing on reliable rental, sales, and maintenance for water heaters and HVAC systems, thereby enhancing home comfort and operational efficiency for countless households.

Leadership Roles at Reliance Home Comfort

  • Chief Financial Officer - Demi Tsioros
  • President, Mackenzie Plumbing & Heating Ltd (1989) - Douglas MacKenzie
  • Office Of The President - Karen Bisson
  • Office Of The President - Gemma Willson
  • Office Of The President - Nicole Cousley
  • 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, manages the company's financial health and strategic fiscal planning. Tsioros oversees all financial operations, including budgeting, forecasting, accounting, and financial reporting, ensuring compliance with regulatory standards across Canada. This role is pivotal in supporting the company's primary focus on the rental, sales, and maintenance of water heaters and HVAC systems. The Chief Financial Officer's responsibilities extend to optimizing financial performance, managing capital allocation, and identifying opportunities for profitable growth. Tsioros works closely with other executive leaders to align financial strategies with operational goals, particularly in expanding market presence in Ontario and western Canada. Demi Tsioros's financial acumen is essential for sustaining the company's operational capacity and driving long-term value for stakeholders.

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

    Douglas MacKenzie, the President, Mackenzie Plumbing & Heating Ltd (1989) at Reliance Home Comfort, provides executive leadership and strategic direction. MacKenzie's extensive experience informs the company's operational strategies, particularly concerning the maintenance and installation of heating, ventilation, and air conditioning systems. This leadership role involves overseeing key operational aspects and ensuring the delivery of high-quality services to customers across Ontario and western Canada. The President, Mackenzie Plumbing & Heating Ltd (1989) works to maintain the company's reputation for reliability and excellence in home comfort solutions. Douglas MacKenzie's guidance is instrumental in shaping the company's service delivery models and fostering a culture of continuous improvement within the operational teams.

    Karen Bisson - Office Of The President

    Karen Bisson, the Office Of The President at Reliance Home Comfort, contributes to the strategic execution and operational oversight of the company. Bisson supports the President's office in driving key initiatives related to the rental, sales, and maintenance of water heaters and HVAC systems. This role involves coordinating cross-functional efforts to ensure alignment with the company's mission and business objectives across its Canadian operations. The Office Of The President team works to enhance service delivery, improve customer satisfaction, and support market growth. Karen Bisson's contributions are vital in maintaining operational momentum and ensuring that strategic priorities are effectively implemented throughout the organization.

    Gemma Willson - Office Of The President

    Gemma Willson, the Office Of The President at Reliance Home Comfort, plays a key part in advancing the company's strategic objectives and operational efficiency. Willson supports the executive leadership in managing the complex logistics of water heater and HVAC system services, ensuring seamless delivery to customers. This position involves close collaboration with various departments to uphold the company's commitment to reliability and customer care across its extensive service areas in Canada. The Office Of The President team, including Gemma Willson, focuses on optimizing business processes and reinforcing the company's market position. Willson's efforts contribute to the sustained growth and operational excellence of Reliance Home Comfort.

    Nicole Cousley - Office Of The President

    Nicole Cousley, the Office Of The President at Reliance Home Comfort, provides critical support to the company's executive leadership and strategic initiatives. Cousley is involved in overseeing aspects of the company's operations, focusing on the effective management of water heater and HVAC system services. This role ensures that operational strategies align with the company's commitment to providing reliable home comfort solutions throughout Ontario and western Canada. The Office Of The President team, with Nicole Cousley's involvement, works to enhance customer engagement and streamline service delivery processes. Cousley's dedication contributes to maintaining the high standards of service that define Reliance Home Comfort's market presence.

    Celso Mello - Chief Information Officer

    Celso Mello, the Chief Information Officer at Reliance Home Comfort, directs the company's technology strategy and infrastructure. Overseeing all IT operations, Mello ensures the seamless integration of digital solutions that support the company's extensive rental and maintenance services for water heaters and HVAC systems. This leadership involves managing data security, optimizing system performance, and driving technological innovation to enhance customer experience and operational efficiency across its Ontario and western Canada bases. Mello's focus remains on leveraging technology to streamline processes, improve service delivery, and maintain a competitive edge in the residential services market. The Chief Information Officer's role is critical in supporting the company's growth and operational scalability through robust IT frameworks. Celso Mello ensures that all technological investments align with the company's overarching business objectives and market demands.

    William Lin - Chief Revenue Officer & Manager

    William Lin, the Chief Revenue Officer & Manager at Reliance Home Comfort, drives revenue growth and market expansion strategies. Lin oversees all sales channels and customer acquisition initiatives, focusing on the company's core offerings of water heater and HVAC system rentals, sales, and maintenance. This leadership position involves developing and executing commercial strategies that enhance market penetration, particularly within Ontario and western Canada. The Chief Revenue Officer & Manager works to optimize pricing models, improve sales team performance, and foster strong customer relationships. William Lin's strategic direction is crucial for increasing market share and ensuring the company's financial success. By analyzing market trends and customer needs, Lin ensures that revenue-generating activities directly support the company's mission of providing reliable home comfort solutions.

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

    Sahil Chopra, the Manager, CyberSecurity & Chief Information Officer, Office at Reliance Home Comfort, leads the organization's cybersecurity initiatives and contributes to its information technology strategy. Chopra is responsible for safeguarding company data and systems against evolving cyber threats, ensuring the integrity and confidentiality of sensitive customer and operational information. This role is critical given the company's extensive operations in water heater and HVAC system rentals and maintenance across Canada. The Manager, CyberSecurity & Chief Information Officer, Office works to implement robust security protocols, conduct risk assessments, and develop incident response plans. Sahil Chopra's expertise is vital in maintaining customer trust and protecting the company's digital assets, supporting the overall operational stability and compliance efforts.

    Explore Leadership Teams in Other Rental Stores (Furniture, A/V, Construction & Industrial Equipment)

    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 Douglas MacKenzie (President, Mackenzie Plumbing & Heating Ltd (1989)) 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), Douglas MacKenzie (President, Mackenzie Plumbing & Heating Ltd (1989)), 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, President, Mackenzie Plumbing & Heating Ltd (1989), Office Of The President, Office Of The President, Office Of The President.