Thermally Efficient & Built for British Weather
The Thermawood Grey Primed Devon is part of Doorphoria’s brand-new range of External Thermal Rated Doors, designed to combine style, insulation, and resilience. With U-values between 1.32–1.36 W/(m²·K), this door provides superior energy efficiency — keeping warmth in and cold air out, perfect for UK climates.
External Thermal Door – Durable Aluminium Construction & Privacy Glazing
This obscure glazed thermal door features a unique aluminium sheet facing for maximum durability and protection against the elements. It’s ideal for homes without a porch or canopy — resisting moisture, heat changes, and daily use without warping or cracking.
The obscure glass panel lets light in while maintaining privacy, making it a great choice for front or side entrances.
Each door is 44 mm thick and can be trimmed by up to 25 mm on all edges, ensuring a precise fit for both new builds and renovation projects.
External Thermal Door Grey Primed & Ready to Paint
Supplied grey primed (RAL 7038) using an Anker Stuy Hydrolux Duocoat water-based primer, the Thermawood Devon is moisture-regulated and ready for painting. Its smooth surface ensures a flawless finish whether you choose bold, neutral, or classic tones.
(Based on the official Thermawood Door guidelines Care and maintenance instructions)
Allow 24–48 hours for the door to acclimatise before fitting.
Store flat in a dry, well-ventilated room, protected from direct heat, moisture, or sunlight.
Always handle with clean gloves and avoid dragging the door.
If trimming, reduce equally from both sides — up to 25 mm each — and reseal all edges using a professional water-based wood sealer.
Finish all 6 sides (top, bottom, edges, faces) before installation to maintain the warranty.
Lightly sand (120–180 grit) before applying two water-based top coats.
Avoid dark colours on sun-exposed doors to prevent warping.
Clean with warm soapy water every two years and reapply finish as needed.
Important: Installation of an unsealed or unfinished door will void the guarantee.
External Thermal Doors in Halifax, Huddersfield & the North
From our base in Halifax, West Yorkshire, Doorphoria supplies Thermawood Thermal Rated Doors across Huddersfield, Leeds, Manchester, Liverpool, and nationwide.
If you’re searching for “external thermal doors near me” or “obscure glazed front doors Halifax”, the Devon combines privacy, insulation, and timeless design — with fast UK delivery available.
💡 Key Features
- Thermally efficient – U-values 1.32–1.36 W/(m²·K)
- Obscure glazed panel for privacy and light
- Aluminium sheet facing – durable and weather-resistant
- Trimmable by 25 mm on all edges
- Grey primed RAL7038 finish – ready to paint
- No porch or canopy required
- FSC certified and tested to EU standards
- 10-year manufacturer’s guarantee
- Lightweight and easy to install
