Composite door with 1 diamond window

High security composite doors

Composite doors with diamond windows

A Diamond composite door from UK Composite Doors adds beauty to function – bringing warmth, comfort, style and security right to your doorstep!

Suitable as front and back doors, composite doors with a diamond window feature will create a lasting first impression to your home.

High security doors

Why choose our composite doors?

Secure 48mm solid timber core
Anti snap locks as standard
Energy & thermal efficient
4 point latch meaning no warping

Anti snap locks on all doors

Our Range of Diamond Window Composite Doors

At UK Composite Doors we offer some of the best composite doors in the UK. Our range of elegantly crafted, high-performance doors will give your home a stylish design while keeping you safe and secure, with top-notch security and durability.

To help you choose the perfect door design, we offer a complete range of frame and glass options in a variety of styles to best suit your home’s architecture. You can customise each decorative glazed unit using a choice of stained, bevelled, frosted or clear glass.

For a truly beautiful look, we recommend our 3 Diamond composite door! If you’re after something a little different for your home, we also offer an extensive contemporary composite door range, as well as our ever-popular Edwardian composite doors.

Whatever your taste, we’ll manufacture a great product to your specifications.

Composite door with 1 diamond window

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Energy efficient doors

What Kind of Homes are Diamond Composite Doors Good For?

Whether you are looking for a sympathetic door replacement for your traditional farmhouse or a more contemporary look for your modern house or city centre apartment, a diamond composite door is an excellent addition!

Regardless of your property’s style, we are sure to have the perfect solution to meet your design aspirations, from the colour of your door to all the glass and hardware optional additions.

Long warranties as standard

10 year guarantee for peace of mind

Popular Edwardian style doors

Why are Diamond Composite Doors Popular With Homeowners?

Diamond composite doors are popular amongst UK homeowners for a number of reasons. A Diamond composite not only makes the best of the natural light in your home, but they’re also manufactured with a high-security standard and come in various levels of privacy.

Unlike traditional timber or uPVC doors, composite doors are designed to be extremely low-maintenance and improve your home’s energy efficiency, saving you money in the long run.


Wide colour ranges

What Colours of Diamond Composite Doors are Available?

Set the tone for your home with our bespoke colour range, featuring over 16 beautiful industry-first colours and wood finishes.

Our most popular external door colours include Anthracite Grey, Irish Oak, Chartwell Green, Red, Foiled White and Duck Egg Blue.

Match the frame to your door or make it stand out with a contrasting colour – it’s all up to you!

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Diamond windows composite door

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