Custom Commercial Greenhouses British Columbia Growers
Harnois Greenhouses designs and installs commercial greenhouses BC growers rely on for productivity, durability, and year-round performance. Whether you’re in the Lower Mainland, on Vancouver Island, or in the northern interior, our structures are engineered for the unique humidity, precipitation, and temperature challenges of British Columbia.
We support growers in floriculture, vegetables, berries, tree seedlings, nurseries, garden centers, and institutions with climate-optimized solutions built specifically for demanding coastal and northern conditions.
Greenhouse Structures Engineered for British Columbia
Every region in British Columbia presents its own challenges—from the high humidity and heavy rainfall of the coast to the colder, drier climate of the interior. Harnois commercial greenhouses deliver consistent light, strong snow-load capacity, humidity management, and superior ventilation to keep your crops thriving year-round.
Why BC Growers Choose Harnois
Designed for coastal humidity, heavy rainfall, and wet winters
Resistant to snow load, wind, and northern temperature swings
Proven structure strength with our oval-tube framing system
Advanced ventilation options for heat and moisture management
Enhanced light transmission for better crop growth
Fast ROI through higher yields and more predictable production
Full compliance with BC building codes and energy standards
Looking to improve your production environment? Our team specializes in optimizing controlled-environment agriculture (CEA) for British Columbia growers.
Greenhouse Solutions for Every BC Crop
Commercial greenhouse production allows growers to control light, temperature, humidity, and irrigation for consistent, high-quality harvests. Harnois structures are engineered to meet the exact needs of each crop type.
Applications
Each plant has unique climate requirements, and our structures are designed to deliver optimal growing conditions season after season.
Our Commercial Greenhouse Models for BC
Harnois offers four professional greenhouse systems tailored to the environmental realities of British Columbia.

High Tunnels Greenhouses
TunnelPro Plus A robust high-tunnel solution ideal for berries, vegetables, and field-to-greenhouse transitions. Starting at $2/sq. ft.

Freestanding Greenhouses
Ovaltech A proven, versatile structure known for strength, reliability, and high light transmission.

Gutter Connected Greenhouses
Luminosa A modular, scalable system ideal for large greenhouses needing maximum efficiency.

Glass Commercial Greenhouses
Vermax Engineered for precision horticulture with exceptional durability and long-term performance. Perfect for institutions, nurseries, and advanced CEA facilities.
Key Benefits of Our Commercial Greenhouses BC
Benefits
- Structures built for BC building regulations and energy requirements
- Resists high humidity, heavy rainfall, and coastal conditions
- Ventilation systems designed for moisture and heat management
- Increased crop quality, density, and predictability
- Reduced use of pesticides and fertilizers
- Lower water consumption and improved nutrient retention
- Year-round, protected production
- Improved profitability and long-term reliability

Commercial Greenhouse Installation
From design to installation, our team ensures precise, efficient construction tailored to your climate, crop type, and project goals. We deliver a robust assembly and a fast start to your operations.

In-House Engineering
Our engineering team customizes every detail of your structure—snow load capacity, ventilation, heating integration, humidity control, and workflow efficiency—to align with BC’s unique regional requirements.

Integrated Project Management
We coordinate every part of your project, from planning to commissioning. After installation, we remain available for support, service, and training to ensure long-term success.
Why Choose a Large Greenhouse From Harnois?
- Full compliance with BC building codes
- Engineered for extreme weather and coastal humidity
- High energy efficiency and durability
- Strong, proven oval-tube framing system
- Better crop density and yield
- Superior product quality and consistency
- Designed to reduce pests, diseases, and input usage
Commercial Greenhouse Projects in British Columbia
Harnois structures are trusted by leading growers across the province.
Van Belle Nursery
Model: Ovaltech
Location: Abbotsford, British Columbia
Van Belle Nursery, a major producer of annuals, perennials, shrubs, and houseplants for mass-market retailers across North America.
PRT Growing Services
Model: Ovaltech
Location: Multiple BC sites
PRT is one of the largest forest seedling producers in North America, having grown more than five billion seedlings – mostly inside Harnois commercial greenhouses in BC.
Start Your BC Greenhouse Project
Whether you’re upgrading an existing facility or building a new commercial operation, Harnois Greenhouses provides the expertise, engineering, and durability needed to thrive in British Columbia’s diverse climates.