Building Tomorrow's Agriculture with Leading Greenhouse Solutions

Harnois builds high tunnels & commercial greenhouse solutions, creating unique growing environments that provide producers with greater predictability.

+60

years of experience in creating commercial greenhouse solutions.

+10 000

greenhouses installed worldwide.

+20

patented technologies.

+30M

sq. ft. of agricultural production area.

Redefining the standards of controlled environment agriculture

By reimagining established concepts, we design commercial greenhouse solutions 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.

Commercial greenhouse solutions that inspire and shape the future of agriculture.

Commercial Greenhouse Worker
CARBON NEUTRALITY AND ENERGY EFFICIENCY​

Patented technologies for a sustainable future​​

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

Our commercial greenhouse solutions provide a sustainable path forward, from energy-efficient designs to materials that optimize natural light and conserve resources. In partnership with growers who share our vision, we are helping to build a resilient agricultural sector, one greenhouse at a time.

Our mission is to enhance predictability, efficiency, and sustainability in agriculture, paving the way for a more resilient future.

Reducing water usage

Increasing our use of eco-friendly materials

Decreasing energy consumption

Commercial Greenhouse Solutions Map

A world leader in the manufacture and development of commercial greenhouse solutions.

Whether you’re a market gardener, flower grower, or researcher, our team can create a turnkey greenhouse project to meet your specific needs. With over 10,000 commercial greenhouse solutions completed worldwide, we deliver unmatched expertise and reliability.

Commercial Freestanding Greenhouse

About Harnois Greenhouses

Since 1965, Harnois has been developing and building high-quality glass and plastic commercial greenhouse solutions for growers.

Our commitment to innovation has resulted in a range of greenhouses offering high light transmission and increased air volume, ensuring greater predictability and optimized yields. The superior quality of our commercial greenhouse solutions and components ensures a long lifespan, providing a positive return on investment for every greenhouse. These strengths have built our reputation on quality and durability – a pride we carry forward.