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The Original Composite Door

There’s a reason why Rockdoor are called ‘the Original Composite Door’ and it’s because they were the first company to manufacture this type of entrance door.

First manufactured all the way back in 1996, Rockdoor were the pioneers of the composite door movement, right off the back of a turbulent era for homeowners where break-ins were quite common, as people opted for cheaper entrance doors with very basic security measures.

To combat the rise in home burglaries and energy bills, they had an end goal to create the nation’s most stylish, secure, and thermally efficient composite door, and whilst many competitors have since tried to replicate, none are quite like the original.

With nearly over one million units produced and thousands of families still happy nearly 30 years later, the Original Composite Door origins remain true to this day.

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Composite doors with built-in security and thermal efficiency

Composite doors are an excellent choice when it comes to selecting an external door for your home. They provide superior security and thermal insulation compared to timber doors, uPVC doors, and standard GRP doors.

When looking for the best composite doors on the market, look no further than Rockdoor, the original manufacturers of the composite door. The Rockdoor composite door is a natural evolution, further improving on the security and thermal features of uPVC doors.

In fact, Rockdoor’s range of composite doors have consistently been found to be one of the most secure doors available in the UK, with studies showing that a Rockdoor is 35% stronger than a typical GRP door!

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Why choose Rockdoor for a composite door?

For over 25 years, Rockdoor have been making composite doors in a whole range of door styles and colours to match the look and style of any home.

Each and every Rockdoor composite door is made to measure, not cut to fit. We do this because composite doors can become weaker when they are cut to fit, which is often the reason for external doors weakening.

This ensures your new door not only protects your family from becoming victims of burglaries, but also increases the thermal efficiency to keep your home warm in the winter.


aluminium reinforced core

Core Benefits

Rockdoors inner strength is unsurpassed thanks to a combination of a 360° aluminium reinforced inner frame and high-density thermally efficient PU foam. Customers can also choose steel mesh reinforcing for the ultimate in security.

£2000 guarantee

£2000 Guarantee

Our lock cylinders are burglar proof. A TSOO7 3 star rating, SS 312 Sold Secure Diamond Standard and Secured by Design accreditation see to that, plus our £2,000 security guarantee.

forced entry protection

Forced Entry

Rockdoors are designed for strength, it is in our DNA. For over 25 years, we have led the way in composite door development to ensure our doors protect homes and families from unwanted intruders and forced entry.

multi point hook lock

Hook up with Rockdoor

Strong sintered steel multi point hook locks with a 25mm throw, securely attach the door to the frame to ensure it cannot be forcibly opened by burglars whilst ensuring a better sound and weatherproof seal.

s glaze technology

Glass Leading Security

Rockdoors feature S Glaze technology, meaning your glass is locked into your door for life, for added security. It also means no glazing cassettes are used which are prone to fading and discolouration.

most secure door in the uk

Stronger - it's Official!

Rockdoor is consistently found to be one of the most secure doors available in the UK, studies show that a Rockdoor is 35% stronger than a typical GRP door.


Here's just a couple of amazing features you will not find on any other composite door in the UK!

rockdoor mesh s-glaze

S-Glaze technology ensures that glass forms part of the door itself so that it cannot be prised out to gain access. This is a common and very quiet method that burglars often use at night time.

Every Rockdoor has a reinforced aluminium inner frame that is 60% stronger than a standard composite door. This means a Rockdoor cannot be rammed and forced open by criminals.

The slab comprises a Steel Mesh for even more security. This security mesh cannot be cut through, adding an additional layer of security, making our already strong door sash, 4 times stronger.


Get creative and design your perfect Rockdoor using our state of the art online door designer (PC recommended), take a look through the Rockdoor brochure or contact us to ask us your questions. 

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