About Rockdoor

March 14, 2019

Who are Rockdoor?

Rockdoor is a British company and located in Blackburn, Lancashire. Rockdoor were founded in 1996 and have more than 20 years experience in manufacturing composite doors. Rockdoor manufacture composite doors and all doors in their factory are made to measure. They operate all over England and Scotland and are owned by a company called GAP UK Plastics (General All Purpose Plastics). View Rockdoors Website

Who are GAP?

GAP is a British company located in Blackburn, Lancashire. GAP were founded in 1993. They have over 35 depots nationwide, specialising in manufacturing and stocking all types of plastics such as soffit, fascias, guttering, trims and cladding, along with all the other tools and essentials. Their website can be found here: View GAP’s Website

Where can I view a Rockdoor?

Your nearest showroom to view a Rockdoor would be a GAP Plastics depot. You can go on their website and enter your postcode to find your closest depot to view a Rockdoor. GAP’s website is here: GAP Depot Locator

What makes Rockdoors secure and thermal efficient?

There are many advanced technologies that go into Rockdoor to make it unrivalled when it comes to keeping cold air and burglars out. You can read more about how and why these composite doors are so strong here: What makes Rockdoor so secure?

What happens if the Glass in my Rockdoor needs replacing?

Some people are a little bit put off by the fact that if the glass fails inside a Rockdoor, you have to change the whole sash (remove letterbox, handle, locks etc from the old sash and put them on the new sash), you can't just replace the glass, the truth is, we have never ever been called out to anyone who has had faulty glass in their Rockdoor, due to the glass being completely sealed inside the Rockdoor from air and moisture, this actually helps prevent the glass from failing, and to smash the glass in a Rockdoor in itself is a very difficult thing to do.

Do I need 4 Hooks, Steel Mesh and Laminated Glass?

I always tell people that 2 hooks, standard core and standard toughened glass is plenty for security. However, if you lived in a fairly remote area where attackers could spend a longer period of time trying to break through your door than they would do on say an estate with lots of houses etc, then it may be worth it. I’ve witnessed attackers trying to get through a Rockdoor with sledgehammers that had 2 hooks, a standard core and toughened glass, they failed with the door virtually intact, but they made such a noise, they had to run after several hits, so no, these extra security options are not required and you will still have a very secure door, if it gives you that added peace of mind or you live in a remote area then it can be worth it but it’s worth pointing out that if you are in a remote area, as good as your Rockdoor may be, it is just as easy to smash a window. Do you need Laminated Glass in your Rockdoor?

Is the Aluminium/Low threshold less thermal efficient than a Slim PVC?

Yes, in a laboratory. In real world conditions inside a house, you are not going to notice a different at all due to the small difference there is between an aluminium threshold and a PVC threshold, so don’t let this small difference change your mind! It’s worth mentioning that security is not compromised with either a PVC or Aluminium threshold.

Can I have a Bar Handle on just the outside?

No, if you have a bar handle, it is external and internal due to the way a bar handle and locking mechanisms work. The door is CNC’d for a bar handle only, so a bar handle on the outside and a lever/lever handle on the inside is not possible.

How does A Rockdoor with the Bar Handle work?

A Rockdoor with a bar handle is operated just with the keys. From the outside once the door is shut, you turn the key clockwise twice and take the key out, this brings the hooks out and locks the door secure. To get back inside, you insert the key and rotate anti-clockwise twice to dis-engage the hooks, you then pull the Rockdoor towards you slightly with the bar handle to release the pressure off the latch (depending on how tight the latch is) and turn the key anti-clockwise (from 12 o clock to about 10 o clock) to bring the latch in so the Rockdoor opens. It is exactly the same for inside except you can put your weight on the bar handle to release the pressure on the latch depending on how tight the latch is set.

Are 4 hooks available with a Bar Handle?

No, due to using the key to operate the hooks when you have a bar handle, 4 hooks cannot be selected as an upgrade with a bar handle. You would need a proper Lever/Lever handlehandle for 4 hooks.

Rockdoor Product Update
Do Rockdoor manufacture the Elite and Select range?

Unfortunately, no. Rockdoor stopped production of the Rockdoor Elite and the Rockdoor Select in August 2018. There is now only one door Rockdoor manufacture and it’s called just that; Rockdoor. Rockdoor Range


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