External Thermawood Primed Berkshire

Elevate your home’s façade with the Berkshire Thermawood Grey Primed External Door. A state-of-the-art external door solution designed to combine enduring style with exceptional heat-retention performance. With a U-value in the range of 1.32-1.36 W/m²K, it significantly outperforms many standard external doors, helping to reduce heat loss and boost energy efficiency.

Finished in a high-quality grey primer, the door gives you the freedom to specify your final colour or finish—whether you prefer a modern painted look or a subtle heritage tone—while arriving ready for immediate installation.

Designed for durability, its unique construction features an aluminium-sheet facing that helps protect against the elements, eliminating the need for a porch or canopy if you so choose.

It also allows up to 25mm of trimming on all edges, making it ideal for both new-build and renovation projects where openings may require fine-adjustment.

Available in multiple sizes (e.g., 1981 × 838 × 44 mm and 2032 × 813 × 44 mm) and FSC-certified construction with a 10-year manufacturer’s guarantee, the Berkshire Thermawood Grey Primed door balances specification-grade performance with elegant aesthetic versatility.