Harnois Greenhouses

Institutional Greenhouses

Harnois Greenhouses

Research & Education: University and Teaching Greenhouses, Public Gardens, and Other Institutions

Custom Research Greenhouse

Tailored for Universities, Schools, Public Gardens, and Other Institutions

At Harnois, we understand the specific needs for institutional greenhouses, especially for botanical gardens, and teaching organizations. Whether the goal is to foster learning, support research, or create accessible growing spaces, our greenhouses are designed to meet diverse requirements while providing durability, efficiency, and aesthetic appeal

Harnois Greenhouses (founded in 1965) have served universities, teaching greenhouses, and other institutional greenhouses for decades by providing them with high-quality, well-crafted, reliable greenhouse structures and maintenance and restoration services.

montreal botanical garden greenhouse
Montreal Botanical Garden

we serve

world class institutional greenhouses adapted to your community

Harnois supplies universities, public gardens, botanical centers, and private institutions with high-quality institutional greenhouse structures, benching systems, climate controls, lighting, coverings, and more—designed to meet the needs of both education and research.

Design

Our in-house engineers and agronomists work with you to design a institutional greenhouse tailored to your climate, crop type, and operational goals. From structural layout to energy efficiency, every detail is optimized to ensure performance, durability, and compliance with local building codes.

Manufacturing

We manufacture all institutional greenhouse structures in Canada using high-quality materials and rigorous quality control processes. Our galvanized steel frames and premium coverings are built to withstand harsh weather and support long-term productivity across a range of crops and growing systems.

Installation

Our expert teams—or trusted certified partners—handle the installation from foundation to final bolt. With decades of experience across North America, we ensure safe, efficient, and code-compliant assembly, whether it’s a freestanding greenhouse or a large gutter-connected greenhouse.

Integration

We integrate essential systems including climate control, irrigation, lighting, and shading. Our modular approach ensures seamless operation between components, giving you full control over the growing environment and helping you boost efficiency and crop yields.

Maintenance

We offer maintenance plans and on-demand support to keep your institutional greenhouse running at peak performance. From membrane replacement to structural inspections and climate system tune-ups, our service team helps extend the life of your investment and minimize downtime.

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enhance your community

Services We Provide

oregon state university - institutional greenhouse

Oregon State University

Luminosa

institutional Greenhouse Structures for Educational Institutions, Public Gardens, and other Public/Private Organizations

Structures

Harnois is North America’s leading manufacturer of institutional greenhouse structures. With a comprehensive range of greenhouse models, we offer solutions to meet virtually any need. Don’t see exactly what you’re looking for? We also design and build fully customized structures to suit your specific requirements.

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Ovaltech Freestanding Greenhouse
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Luminosa Gutter-connected Greenhouse
research greenhouse - quebec university
Vermax Glass Greenhouse

Experience

Project management + In-house Engineering

We seamlessly blend top‑tier project management with a robust in‑house engineering team to deliver end-to-end success on every project. From planning and coordination to design and execution, we ensure a cohesive process—on time, on budget, and to your exact specifications.

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Rutgers University
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University of Illinois
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University of Georgia
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Montreal Botanical Garden
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Cincinnati Zoo & Botanical Garden
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Coastal Maine Botanical Gardens