Greenhouse Orientation: Key Considerations

When planning your greenhouse project, one of the first decisions you’ll face is greenhouse orientation — north-south or east-west. At Harnois Greenhouses, one of the leading commercial greenhouse manufacturers in Canada, our experts recommend evaluating this choice carefully. Orientation directly impacts light penetration, ventilation efficiency, and long-term crop productivity. North-South Greenhouse Orientation A north-south orientation […]
The Future of Growing Strawberries in a Greenhouse: Elevated Benches

Growing strawberries in a greenhouse is one of the most profitable moves a berry producer can make today. With rising consumer demand for local, fresh fruit and increasing climate unpredictability, more growers are turning to controlled-environment agriculture to protect their yields — and their bottom line. At Harnois Greenhouses, we’ve worked with strawberry producers across […]
How much does a commercial greenhouse cost?

Commercial greenhouse cost per square foot varies widely based on scale and sophistication: small commercial greenhouses (under 10,000 ft²) typically cost $6–$10 / ft²; mid-size units (~10,000‑50,000 ft²) range from $15–$20 / ft²; large-scale operations (over 50,000 ft²) may cost $20–$50 / ft² or more depending on advanced system Final costs influenced by materials and added systems: structure type (e.g. high tunnels, freestanding, gutter-connected), coverings (poly film […]
How to Inspect Your Greenhouse Polyethylene: A Complete Seasonal Guide

Inspecting your greenhouse polyethylene at every change of season is one of the most important maintenance steps a grower can take. A small crack left unrepaired can become a large tear after the next wind event — costing you far more in emergency replacement than a 10-minute inspection would have. If your region has recently […]
The Best Tips for Choosing Your Commercial Greenhouse Ventilation

Proper commercial greenhouse ventilation is one of the most important — and often overlooked — aspects of a successful growing operation. A well-designed system ensures healthy crop development, improves yield, and protects your structure from long-term damage caused by excessive heat and humidity. In this guide, we’ll walk you through the key factors to consider […]
Expert Greenhouse Maintenance, Repair & Calibration Services

Carefully inspecting and maintaining your greenhouse and its equipment can save you a significant amount in unexpected expenses. At Harnois Greenhouses, we’ve designed this checklist to help you take an in-depth audit of your equipment and avoid any surprises that may impact your production. We also offer comprehensive greenhouse maintenance, repair, and calibration services to […]
Choosing the perfect greenhouse for you

Choosing the right agricultural greenhouse is one of the most strategic decisions in any controlled-environment production project. A structure that is poorly suited to your reality can quickly generate significant cost overruns, slow the growth of your operation and compromise your long-term profitability. On the other hand, making an informed choice ensures a high-performing, scalable […]