Since its inception in 1997, HJT Holz Oy has redefined the standards of wood treatment. As a member of the Finnish ThermoWood Association since 2000, we blend our extensive experience with innovative practices to ensure top-notch quality. Our product range, exported globally, reflects our commitment to excellence, with our facilities including six heat treatment plants and a dedicated planing mill, underscoring our capacity to meet diverse architectural needs.

Our Thermowood distinguishes itself with exceptional qualities: improved rot resistance, reduced moisture content, and enhanced thermal insulation, wrapped in a consistent, stylish brown hue reminiscent of hardwood. It's a versatile material, perfect for various applications from interior elements like floors and saunas to external uses in cladding, terraces, and windows. This versatility is complemented by our product range, offering both unmoulded and moulded options, like thermomodified spruce and pine, tailored to specific project requirements.

At the heart of HJT Holz's philosophy is a profound respect for nature. Our chemical-free heat treatment process, which enhances the wood's natural resistance to environmental stressors, is a testament to this ethos. We pride ourselves on adhering to the PEFC standard for sustainable forestry, ensuring that every piece of Thermowood not only embodies durability and elegance but also stands as a symbol of environmental responsibility and eco-conscious innovation.