Turnkey greenhouse projects since 1965

Our Story

We don’t just support growers, we are engineers, designers, researchers, agronomists, technicians, community members, families and people.

Sustainable solutions designed with the future in mind

In a world where the future of outdoor food production is uncertain, there is great comfort in having access to reputable commercial greenhouse builders. Harnois is a leader in manufacturing sustainable greenhouses that can be built specifically for your climate, your technological aspirations, and your crop types.

X% Reduction in water usage

Increased use of XYZ eco-friendly materials

X% Electric production for sustainable energy

Our Solutions

Elevate yields with our commercial greenhouses, meticulously engineered for optimal light transmission and durability. Tailored for vegetables, flowers and tree seedlings, our structures support your growth, and our passionate experts support you.

Global manufacturer of advanced greenhouses

Whether you’re a market gardener, flower grower or institutional customer, our turnkey greenhouse projects can be customized to meet your every need. We have completed over 10,000 greenhouse projects worldwide, and continue to add 250 projects a year to our list.

Our projects are the reason we do the work that we do

From supporting commercial growers to celebrating agribusiness globally, we are proud to share some of our turnkey greenhouse projects with you.

Institutional

AgrÉcoles

Horticultural

Ferme Gadbois 

Animals shelter

Ferme Miclerc

Horticultural

Good Year Farms

Garden Center

Jardin du coin 

Horticultural

La Maison des fleurs vivaces