Door Knowledge Centre

Our Door Knowledge Centre explains the differences in materials, security, energy ratings and costs so you can pick the right door with confidence.

How can a traditional composite door mix classic style with modern performance?

A traditional composite door keeps the look of a period front door while fixing the common issues of old timber—draughts, swelling, peeling paint and tricky locks. Crafted with the latest composite door technology, these traditional front doors combine elegant aesthetics with exceptional performance. In the Hörmann Truedor range, designs like Eden, Severn and Ely keep classic panel shapes and mouldings so they sit naturally on Georgian, Victorian and Edwardian façades, yet they’re built to today’s standards for warmth, security and low upkeep.

What’s inside the door?

Most composite doors use tough GRP (glass‑reinforced plastic) skins around an insulated core, so the door looks crisp and stays stable across the seasons. Hörmann Truedor offers two main builds:

  • Classic44 – a 44mm GRP slab with double glazing for balanced warmth and strength.
  • Clima63 – a 63mm insulated slab with triple glazing and extra seals for higher thermal performance. In the right specification it delivers U‑values under 1.0 W/m²K (some around 0.8 W/m²K), which helps keep the hall cosy and bills in check.

Will it suit a period‑style home?

Yes, the traditional styling is what makes it a great fit. Eden works well for formal terraces with four or six‑panel layouts and refined glass. Severn adds a gentle crescent light that suits late‑Victorian and Edwardian bays. Ely has a neat three‑column ‘craftsman’ feel. If your property leans rustic, the Cottage collection (for example, Conwy) gives a vertical ‘plank’ look that feels authentic. Each door keeps the right proportions and detailing so it looks ‘meant to be’ on brick or stone elevations.

How do I choose the glass?

Light and privacy are easy to balance because there are 14 glazing designs across the collections. For privacy, consider Satin, Stippolyte or Cotswold; for decorative detail, look at Majestic, Grace, Turin, Triline or Harmony. All units are toughened for safety, and Clima63 doors use triple glazing to boost insulation and reduce noise. You can compare the options on Hörmann Truedor’s glazing hub.

Is it secure?

Security is built in for daily peace of mind. Hörmann Truedor doors use multi‑point locking, a 3‑Star security cylinder and a security glazing cassette. Many models add triple hinge bolts and laminated security glass. You can also specify PAS 24 performance and Secured by Design (the UK police‑backed scheme) for extra reassurance and project needs.

Colours, hardware and daylight

Heritage greens and greys, deep blues and reds, plus Rosewood and Golden Oak woodgrains give you lots of room to match brick, stone or render. Selected ranges can be supplied in a custom RAL colour. Hardware comes in stainless, chrome, gold and black, from classic knockers and letterplates to modern bar handles. If your hall needs more light, add a toplight or sidelights in matching or complementary finishes with obscure glass for privacy.

Warmth and upkeep in everyday use

Classic44 is a strong, low‑maintenance choice for most homes and includes a steel‑reinforced PVC‑U frame. If your doorway is exposed or your hall runs cold, Clima63 moves up to A‑rated energy performance with its thicker insulated slab, triple glazing and a thermally optimised, steel‑free frame with triple seals. Either way, GRP skins mean no yearly sanding or repainting—just a wipe‑clean surface.

Made in Britain, with sustainability in mind

Hörmann Truedor composite doors are developed and manufactured in Britain, with quality checked across the full doorset. As a group, Hörmann supplies residential products in Europe CO₂‑neutral as standard and powers European production sites with 100% purchased green electricity, balancing the rest through certified projects—useful if your build or refurbishment targets environmental credits.

Ready to explore designs?

Start with the Traditional and Cottage collections, then open the glazing page to compare patterns and privacy levels. When you’re happy with the look, use the online designer to preview colours and hardware on your chosen style.

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