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The homeowner’s ultimate guide to composite doors

Your front door does more than you might think. It keeps your home warm, keeps intruders out, and sets the tone for everything behind it. So when the time comes to replace it, it pays to understand your options.

Composite doors have become the go-to choice for homeowners across the UK – and it’s easy to see why.

This guide covers everything you need to know: what composite doors are, how they’re made, how they compare to the alternatives, and how to choose the right door for your home.

What is a composite door?

A composite door is made from a combination of materials, working together to outperform what any single material could achieve on its own.

A typical GRP composite door consists of:

  • A glass-reinforced plastic (GRP) outer skin – tough, weather-resistant and available in a wide range of colours and finishes, including realistic woodgrain effects
  • A high-density foam-filled core – the engine room of the door’s thermal efficiency and structural rigidity
  • A robust subframe – usually uPVC or timber, providing the structural backbone
  • Multi-point locking hardware – built-in security as standard

The result is a door that looks like a traditional timber door, performs far better, and demands almost no maintenance.

Orange exploding door

The key benefits of composite doors

Durability that stands the test of time

GRP composite doors are built to last. Unlike timber, they won’t warp, swell, rot, or bow – regardless of how wet, cold, or sunny the British weather decides to be. At Entrance Composite Door Solutions, every door comes with a 25-year guarantee, which tells you everything you need to know about their longevity.

Security you can rely on

Security standards for composite doors are rigorous. Our doors are tested to PAS 24 regulations, which means they’ve been put through independent testing for resistance to attack. Combined with multi-point locking systems and a dense, solid core, a well-specified composite front door is extraordinarily difficult to force.

For homeowners, that peace of mind is worth every penny.

Thermal efficiency and lower energy bills

Heat loss through an old or poorly fitted front door is surprisingly significant. The foam-filled core in a GRP composite door provides excellent insulation, reducing the amount of warmth that escapes from your home. Better thermal efficiency means your heating system works less hard – and that means lower energy bills over time.

Low maintenance

Unlike traditional timber doors, composite doors need no sanding, no painting, and no seasonal adjustment. A wipe-down with a damp cloth keeps them looking their best.

Composite doors vs uPVC vs timber: What’s the difference?

It’s a question many homeowners ask. Here’s how the three main options compare.

Composite uPVC Timber
Insulation Excellent Good Variable
Security Excellent Good Variable
Maintenance Very low Low High
Appearance Premium Functional Premium
Durability Excellent Good Requires upkeep
Guarantee Up to 25 years Typically 10 years Varies

uPVC doors are a cost-effective, practical solution, but they don’t match the visual appeal or structural rigidity of a composite. Timber has warmth and character, but without regular maintenance it deteriorates – and it’s vulnerable to the elements in a way that GRP simply isn’t.

For most UK homeowners looking for the right combination of performance, aesthetics and value over the long term, GRP composite doors are the right choice.

Sapphire gemstone door with composite sidelights

Composite door styles, colours and customisation

One of the great pleasures of choosing a composite door is the sheer scope for making it your own. With over 10,000 possible combinations available at Entrance Composite Door Solutions, the customisation options are genuinely impressive.

Composite door styles

Our range covers everything from sleek, contemporary designs to classic cottage-style panelling:

 Colour

Composite doors are available in a wide range of colours, from classic Green and Deep Red to contemporary Anthracite Grey, Urban Black and Duck Egg Blue. Each colour is applied to the GRP skin during manufacture, so it won’t peel or flake.

If you can’t decide, our online door designer tool lets you visualise different colour combinations before you commit.

Glass designs

Glazing transforms the face of a front door. Whether you want to bring in natural light with a larger panel, or prefer a more private decorative finish, there are glass designs to suit every preference – from geometric contemporary patterns to traditional leaded and stained-glass effects.

Hardware

Letterplates, handles, knockers and numerals all contribute to the finished look. Whether you prefer a sleek chrome bar handle or a traditional urn knocker, the hardware options available through Entrance Composite Door Solutions are extensive.

Ready to find your perfect composite door?

At Entrance Composite Door Solutions, we’ve been helping homeowners across the UK find the right front door for over 40 years. Our family-run business offers over 10,000 possible door combinations, a 25-year guarantee and a network of trusted local installers to handle the fitting.

Explore our full range or use our door designer to get started.