A comparison of composite doors and aluminium doors

A Comparison of Composite Doors and Aluminium Doors (Including Pros and Cons)

Choosing the right entrance door is a major decision for any homeowner or property developer. Security, energy efficiency, appearance and longevity all come into play and with more choice than ever in the marketplace, it’s easy to feel overwhelmed.

There are a few material options for the construciton of front doors, for this comparison we have discounted uPVC (bend and flex to much) and Timber (expensive to buy and maintain).  Two of the most popular options are composite doors and aluminium doors. Both have strengths, but when you look deeper into lifetime value, long-term performance and modern home design, aluminium increasingly comes out on top.

Composite Doors — an overview

Composite doors are built from several materials bonded together, typically including a GRP (glass-reinforced plastic) skin, uPVC frame, timber elements and foam insulation. They are widely available and typically positioned as a mid-range product.

Pros of Composite Doors

✔ A wide choice of designs, especially traditional styles

✔ Very good thermal efficiency

✔ Suitable for mid-market budgets

✔ Low maintenance compared to timber

Cons of Composite Doors

✘ Can fade, warp or swell depending on temperature and exposure

✘ Limited maximum panel size — not ideal for large entrances

✘ Surface damage is difficult to repair and often requires full replacement

✘ Heavier construction can sometimes lead to long-term hinge wear

Composite doors remain a popular option, but their performance is largely determined by external cladding and core materials that naturally age over time.

Aluminium Doors — an overview

Modern aluminium entrance doors are engineered using thermally broken aluminium profiles designed to deliver outstanding mechanical strength, slim sightlines and impressive thermal performance.

Pros of Aluminium Doors

✔ Architectural styling with ultra-slim frames and maximum glass area

✔ Structurally strong — ideal for large, oversized and premium entrances

✔ Will not warp, swell or twist in heat, cold or humidity

✔ Surface finishes retain colour for decades with minimal maintenance

✔ Industry-leading security when paired with PAS 24 tested systems

✔ Perfect match for high-end bifolds and glazing packages

Cons of Aluminium Doors

✘ Higher initial investment vs composite

✘ Very traditional cottage aesthetics may require a heritage-style aluminium system

While composite doors deliver good performance for the price, aluminium doors are engineered to perform day after day, year after year with no drop-off in appearance or functionality.

Side-by-side comparison

Which door offers better long-term value?

When you look beyond the initial purchase price, aluminium clearly offers the highest lifetime value:

• There is no risk of swelling or warping
• No repainting or resurfacing
• Colour and finish stay consistent for decades
• Ideal for homes with bifolds and large glazing

Composite is a reliable mid-budget choice but aluminium is the door homeowners increasingly choose when style, security, longevity and premium design matter.

Final Verdict

If the priority is short-term price, a composite door can be a sensible choice.

When the priority is future-proof performance, architectural styling and a front door that looks as good in 20 years as it does on day one, aluminium is the clear winner.

Interested in upgrading to aluminium?

Whether it’s a statement entrance door, slimline sliding doors or a full house glazing package, our team is happy to help with advice, design and tailored quotations, either visit our showroom or contact us:

📞 01252 33 66 14
📧 info@total-as.com
🌐 Front Doors