There are solid doors, and there are rock-solid doors…

Nearly 70% of burglaries involve forced entry through the front or back door, so don't add to the statistics. Choose a Rockdoor.

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.

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.

£2,000 Guarantee

Rockdoor 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 a £2,000 security guarantee. Customers also receive three Rockdoor branded keys as standard.

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.

Forced Entry

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

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.


Not considered a Composite Door before?

Many of our customers hadn’t considered Composite Doors until they had one installed. If you would like more information and advice about Composite Doors then please call us on 01566 773777, email us via info@horizon-hi.co.uk or drop in and see us on Quarry Crescent on the Pennygillam Industrial Estate in Launceston.

Gallery / Portfolio

So, if you’re thinking of improving your home, get in touch with us today for a free no-obligation quotation. 
You can call us on 01566 777757 or email info@horizon-hi.co.uk or come visit us in our Launceston showroom, there is plenty of parking outside!