Modern Design Meets Thermal Efficiency
The Thermawood Grey Primed Berkshire is part of Doorphoria’s latest range of External Thermal Rated Doors, combining contemporary style with excellent energy performance. Designed to suit both modern and traditional homes, this 44mm thick door delivers exceptional insulation with low U-values between 1.32–1.36 W/(m².K) — helping you reduce heat loss and energy bills without compromising aesthetics.
Thermal Rated Door – Engineered for the British Climate
Built using a unique aluminium sheet facing, the Berkshire offers superior resistance against moisture and harsh weather. Unlike standard timber doors, it doesn’t require a porch, canopy, or recess to maintain durability — making it a smart choice for exposed properties and busy households.
The door can also be trimmed by up to 25mm on all edges, giving installers and homeowners flexibility during fitting, especially in renovation or new-build projects.
Stylish, Ready-to-Paint Finish
Supplied grey primed as standard, the Berkshire is ready for your personal touch — whether you prefer a classic black finish or a modern neutral shade. The smooth primed surface ensures a flawless paint application and long-lasting finish.
Sustainable, Certified & Guaranteed
Every Thermawood door is FSC certified, manufactured from responsibly sourced materials and tested to European building standards. With lightweight construction, no stile or rail connection, and a 10-year manufacturer’s guarantee, you’re investing in long-term quality and performance.
External Thermal Rated Door in Halifax, Huddersfield & the North
Based in Halifax, West Yorkshire, Doorphoria supplies External Thermal Rated Doors across Huddersfield, Leeds, Manchester, Liverpool, and the wider North of England — with UK-wide delivery available.
If you’re searching for “external doors near me” or “thermal rated exterior doors Halifax”, Doorphoria delivers high-quality, energy-efficient solutions designed for the British home.
We also stock External Oak Doors, Composite Front Doors with Side Panels, and Glazed External Doors, giving you style options to match every property type.
💡 Key Features
- Thermally efficient – U-values 1.32–1.36 W/(m².K)
- Aluminium sheet facing for superior durability
- No porch, canopy, or recess required
- Trimmable by up to 25mm on all edges
- Grey primed finish – ready to paint
- FSC certified and tested to EU standards
- Lightweight and easy to install
- 10-year manufacturer guarantee
