Small Planet Supply

Small Planet Supply ULC is a North American leader in high-performance building materials and education. We empower builders, architects, and designers to create healthy, energy-efficient, and enduring structures using products that prioritize performance and indoor air quality. Our curated line of toxin-free and sustainable materials includes industry-leading brands such as Zehnder Ventilation, SIGA air-sealing systems, Sanden CO₂ heat-pump water heaters, LG heat pump water heaters, ThermaCork natural cork insulation, Hanno Band, and Prosoco R-Guard. Beyond supplying materials, we provide training and guidance to help professionals design and build to the highest performance standards—whether Passive House, net-zero, or code-plus construction. Learn more about our products, training programs, and commitment to better building at