Building Tomorrow's Agriculture
with Vegetables & Fruits with Flowers with Seedlings with Soft fruits TOGETHER

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

Brighter by design

Through the years, we’ve built commercial greenhouses solutions with a focus on innovation, sustainability, and efficiency, creating optimal growing environments through smart design and advanced technology.

Leading Commercial Greenhouse Solutions & Services

TunnelPro Plus

An economical and high-performing solution for berry crops and starting the transition to open-field cultivation. Its simple yet robust structure allows for quick installation and excellent wind resistance. Ideal for growers seeking a reliable, functional, and scalable high tunnel.

Discover TunnelPro Plus

Ovaltech

Our most versatile model, offering a wide range of widths to suit all needs. Its gothic shape enhances light transmission, while its large air volume ensures a more stable indoor climate for crops. Designed to withstand strong winds and snow loads, Ovaltech combines strength, performance, and adaptability.

Discover ovaltech

Luminosa

The Luminosa greenhouse is designed to maximize natural light through its gothic shape and vertical walls. Its large air volume, gutter height of up to 20 feet, and multiple ventilation options create an optimal and stable growing environment. Offering superior working comfort, it is ideal for multi-variety production and ready to integrate automation systems.

Discover Luminosa

Vermax

The Vermax greenhouse embodies innovation. Thanks to its patented high energy-efficiency technology, it enables optimized climate control while significantly reducing energy consumption. Designed to achieve carbon neutrality, Vermax combines environmental performance, structural strength, and resilience to variable weather conditions.

Discover vermax

Redefining the standards of CEA

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.