What is a composite door?

Composite doors have become an increasingly popular choice for homeowners with their durable and weatherproof properties. But what exactly are they made of? Before choosing a door, it is essential to know the finer details of such an important product, to ensure that you are making the best decision for your home.

What are composite doors made of?

chartwell green composite door

Composite doors are made up of a combination of materials. The external part is made from a layer of Glass Reinforced Plastic (also known as fibre glass). Every door is made with a robust Nordic wood core, the best materials and exceptional standards of design and construction.

The internal space of a composite door is injected with a heat retaining thermal foam to ensure it is energy efficient. The outer door frame is constructed from PVCu and steel reinforcement to make composite doors one of the most secure door options on the market.

What are the benefits of a composite door?

Enhanced Security

front composite door

Composite doors are immensely durable and provide protection against intrusion as well as regular wear and tear. The steel-reinforced frame, internal solidity and composition of several materials makes a composite door extremely thick, for extra security.

With composite doors being twice as thick as PVCu doors, they are the sturdier and safer option for homeowners. Essex Composite Door Shop doors also feature the Yale Lockmaster – the most secure cylinder and handle combination. It has been developed and tested to deliver superior security and resists intrusion from unwanted visitors. The extra strength and resilience of composite doors, far exceeds all Police-approved Secured by Design security standards.

If you want extra security for your home, there is also the Ultion Sold Secure Diamond Option. The Ultion cylinder has passed all major British standards test for security without the need for cylinder protectors or extra secure door handles. In the unlikely event that you’re burgled and the intruder gains entry by snapping the Ultion cylinder, you’ll get a £1000 compensation and the door repaired or replaced.


At Essex Composite Door Shop, we are able to help customers create their ideal door with our online door designer feature, allowing homeowners to select a style that complements the theme of their home. If you don’t want to design your door from scratch, there is the option to select one from our pre-designed range and just choose your desired colour. Whatever the colour and style, your new composite door will add masses of kerb appeal to your property.


Not only are composite doors bursting with kerb appeal, but they are also low maintenance and extremely durable. They do not suffer the common problems that can occur with older front doors such as weathering, fading in colour and constant upkeep. Instead, composite doors have a longer life and only require a quick wash with a cloth when needed.

Thermally Efficient

Composite doors have a precision-fit manufacture, meaning the door sits perfectly in the frame, to eliminate any draughts or heat escaping. With low U-Values and excellent insulation, they even help to keep energy bills down. Composite doors from Essex Composite Door Shop also have an A-rating for thermal efficiency and will help to retain heat in the home.

Composite doors vs PVCu doors

blue composite door

PVCu doors used to be the most popular choice for front and back doors but today more composite doors are fitted in homes. Composite doors perfectly combine the appearance of timber doors with the economical and low maintenance benefits of PVCu.

Composite doors are made from a range of materials offering extra performance and style benefits of each, whereas PVCu doors often have limited design options and lower thermal and security performance.

Composite doors are longer lasting than PVCu and will retain their polished exterior, as well as help to keep your energy costs down.


Thinking of updating your front door? Get in touch with us here to enquire about choosing the perfect composite door for your property. Our online door designer and pre-designed range leave you spoilt for choice!

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