Your partner in operational excellence

Since 1989, A & B Mechanical has been the trusted authority in comprehensive commercial and industrial mechanical services across Winnipeg and Manitoba.

Our experience spans decades of hands-on work in facilities that cannot afford downtime, which is why clients count on us for reliable service, steady communication, and a team that understands the real pressures of keeping operations running.

Our goal has always been to ensure that complex mechanical systems that power Manitoba's industries and largest facilities perform reliably, safely, and efficiently.

What makes us different?

Key attributes, value and differentiation.

Key Attribute Value Proposition for A & B Mechanical Customers Differentiation Point
Operational Reliability & 24/7 Response We ensure your facility remains operational and productive, minimizing costly downtime with guaranteed 24-hour emergency support. Commitment to being "always on" for critical systems.
Unwavering Safety & Compliance Our COR™ Certified status demonstrates a safety culture that exceeds legislative requirements, reducing your project liability and risk exposure. Industry-leading safety certification, essential for industrial sites and major projects.
Integrated Mechanical Authority We offer a complete depth of services-from Industrial HVAC and Boiler Installation to complex Controls and Plumbing Systems-meaning one partner manages your entire mechanical footprint. Single-source expertise across all major mechanical disciplines.
Proven Local Legacy Since 1989, we have partnered with Manitoba's largest organizations, delivering complex projects with decades of proven experience and local market insight. Established history and strong reputation in the Winnipeg and Manitoba market.

Long-term partnerships

Earning our clients trust is what drives us.

We are genuinely proud of the trust and satisfaction we earn from customers. Take a moment to see what people are saying about their experience with A & B Mechanical.

A team dedicated to your
project success

Safety first

The COR™ Certified difference.

Our commitment to our clients is matched only by our dedication to safety. A & B Mechanical maintains a COR™ Certification, recognizing our proactive safety culture that consistently exceeds legislative requirements. This means when we work on your large scale mechanical projects, you benefit from best-in-class safety protocols, minimizing liability and ensuring a protected, professional job site.

Committed to industry memberships

Associations and affiliations.

Built on hard work and listening to the customer

Our local legacy, your future success.

We are proud to be a Winnipeg-based company that has grown alongside the Manitoba economy for over three decades. Our founder, Bruce McWhirter, built this company on hard work and the principle of listening to the customer. That founding spirit of partnership and dedication is now taken over by Ryan McWhirter, Kallem McWhirter and Andrew Besant who leads our team of professionals today.

For a partner with the expertise, responsiveness, and safety record required to manage your most critical infrastructure, choose A & B Mechanical. Let us discuss your next project.

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