Harnois builds greenhouse and large tunnel solutions, creating unique growing environments that provide producers with greater predictability.

Redefining the standards of controlled environment agriculture

By reimagining established concepts, we design structures and technologies that anticipate tomorrow’s needs. Our iconic innovations, such as the gothic profile, embody this mission daily. Each of our greenhouses maximizes natural light, creating optimal growth conditions while enhancing predictability. With Canada’s first glass greenhouse, we merge carbon-neutral technologies with adaptability, delivering more than just a structure—a sustainable agricultural vision.
Solutions that inspire and shape the future of agriculture.

• Professional Plastic Greenhouses
• Glass Greenhouses
• Greenhouse Technologies

Patented technologies for a sustainable future​​

At Harnois Greenhouses, sustainability lies at the heart of every structure we create. We design greenhouses and develop technologies that address today’s needs while preparing for tomorrow’s challenges. Our solutions are crafted to minimize environmental impact while maximizing productivity, combining innovative technology with durable materials for long-lasting performance.

Read the most recent news from Harnois Greenhouses here.