Reinbold Engineering Group is a leading mechanical engineering firm with deep roots in the design and construction industry since 1998. With our head office in Calgary, Alberta, and branch offices in Edmonton, Kelowna, Vancouver, and Toronto, we bring national reach and local expertise to every project. Our team includes Professional Engineers, LEED-accredited professionals, Certified Passive House Designers, Mechanical Technologists, and skilled tradespeople.
We specialize in the design of HVAC, plumbing, and drainage systems, with a strong focus on retrofit and upgrade projects for existing buildings. Our extensive experience in retrofitting mixed-use residential, affordable housing, and commercial properties allows us to deliver innovative, energy-efficient solutions that extend building life, reduce operating costs, and support sustainability goals.
In addition to engineering, our in-house energy modelling division—staffed across all major offices—helps clients meet and exceed regulatory and certification standards, including ABC, NECB, LEED, WELL, and Built Green. We offer practical guidance on achieving net-zero, passive house, and low-carbon retrofit targets.
Our Principals are actively involved in each project, ensuring hands-on leadership throughout design and construction. Our contract administration and commissioning teams provide expert support during implementation, helping guide projects to successful, on-time completion.
At Reinbold Engineering Group, we prioritize collaboration and energy-conscious design. We take pride in our long-standing relationships with architects, clients, and consultants, consistently delivering high-quality mechanical solutions that meet today’s challenges and prepare buildings for tomorrow.

retrofit vendor network for large buildings
Reinbold Engineering Group

About
Highlights
Certifications:
– Professional engineers
– LEED Accredited Professionals
– Certified Passive House Designers
– Building Energy Modelling Professionals
– Certified Energy Managers
– Project Management Professionals
– International Ground Source Heat Pump Design Professionals
Innovative solutions
– Decarbonization and electrification feasibility studies
– ASHRAE Level 1 to 3 energy audits
– Deep energy retrofit feasibility studies
– Ground source heat exchange design
– Over 250 energy modelling projects for new construction and retrofits
– Green building certifications (LEED, BuiltGreen, EnergyStar)
Services
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Commissioning & operations
- Commissioning
- Building operation handover & training
- Measurement & GHG verification
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Assessments
- Audits
- Building condition
- Modelling & simulation
- Portfolio assessments
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Feasibility
- Life cycle & capital planning
- Utility analysis
- Renewables
- Embodied carbon
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Financing & grant support
- Grants
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Procurement, project delivery
- Project management
- Green building certifications
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Design, engineering
- Mechanical engineering
Service area
- Central Alberta
- Northern Alberta
- Southern Alberta
Building types
- Commercial
- Multi-unit residential
- Industrial
- Municipalities
- Universities & Schools
- Hospitals
Project delivery experience
- Integrated project delivery
- Design-build
- Design-bid-build
- Progressive design-build
- Construction management
Project certifications
- LEED
- Energy Star
Typical project value
$10.1 million – $20 million, $1 million – $10 million, Greater than $20 million

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