At Leader Mechanical we're passionate about potential.

With 35 years of heritage and over 100 completed developments, Leader Mechanical is a large-scale plumbing, heating, and HVAC contractor in the GTA. Our proud team of 300 tradespeople of UA Local 46, Plumbers and Steamfitters, are the heart and soul of our organization. We strive to deliver an exceptional finished product to our partners.

Plumbing & Heating

Airways & HVAC

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At Leader Mechanical we're passionate about potential.

With 65 years, 3 generations and over $1 Billion of completed projects, Leader Mechanical is a preferred trade partner in the GTA. Our proud team of over 300 tradespeople of UA Local 46 and 285, are the heart and soul of our organization. We strive to delivery an exceptional finished product to our partners.

Plumbing & Hydronics

HVAC

Contact

A 65 Year Legacy in Mechanical Contracting

Founded in 1963, Leader Mechanical began as a partnership between the Bortolus and Breda Families. Our company is built on a deep commitment to our customers, and high quality work and service. Today, we stand 300+ strong, with our proud team of trained tradespeople.

Our Capabilities

Hirise

Having successfully completed over 100 Hirise developments, you can trust that Leader has the expertise, effective on-the-job management and skilled workforce to deliver your mechanical construction requirements.

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Midrise

Leader specializes in delivering complete mechanical systems for midrise residential and mixed-use developments. With decades of experience, we understand the unique balance midrise projects demand.

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Lowrise

Leader is the trusted name in Low Rise residential mechanical. Whether you are building 100 or 2500 homes we have the capacity, and experience to deliver.

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Custom

Leader brings commercial technology with a specialized Custom Home Team to fulfill the needs of the luxury home builder and client. We’ll be with you from blueprints to build for your mechanical needs.

Explore Custom Home