Composite Doors - Secure and Strong

We have over 10 years experience with composite doors, and have fitted over 1,100 composite doors in the UK. Check our Facebook page for thousands of photos or view the video here: Verysecuredoors Installations 

We supply and fit composite doors all over the Midlands and offer the cheapest UK fitted prices backed by a first-class service and after care. We cover Derbyshire, Nottinghamshire, Leicestershire, Crewe, Holmes Chapel, Staffordshire, Yorkshire, Warwickshire, Cheshire, Sheffield, Rotheram, Barnsley, Northamptonshire and Lincolnshire.

Low overheads mean we don't charge anything like what other companies charge for composite doors, and unlike big companies, we care and take pride in what we do. We are often hundreds of pounds cheaper for the same product and with a better service than the big companies. View the range and contact us today for a free no obligation quote, we will design your door and email you the design and price.

No hassle. No chasing. No sales calls.

Rockdoor LogoRockdoor Vogue Haze


Prices from £995 including VAT and installation

Solidor LogoSolidor Door Design


Prices from £955 including VAT and installation

Rocal Endurance LogoRocal Endurance Door
Endurance Doors

Prices from £875 including VAT and installation

Solid Core LogoSolid Core Door
Solid Core Doors

Prices from £735 including VAT and installation

Rocal Endurance Door

Rockdoor Stable Doors

Prices from £1,100 including VAT and installation

French Doors by Rockdoor

Rockdoor French Doors

Prices from £2,125 including VAT and installation

Aluminium Bifold Doors

Aluminium Bifold Doors

Why choose us for your composite door?

Verysecuredoors Customer Testimonial
    • Small family business, run by peope who care about their customers and work

    • Over 10 years experience and over 1,100 composite doors fitted

    • No sales people. We don’t call and email every 5 minutes

    • Low overheads versus many other competitors so lower prices

    • We are CERTASS registered (Same as FENSA)

    • Building Certificate on all doors we install

    • No deposit to pay and payment upon completion

    • Removal of old door and frames so no mess is left

    • Quick lead times with excellent customer service and after care

Over 1,000 Composite Doors Installed

We now have well over 1,000 door installations to our name now and are often asked by employees of Rockdoor to install their own door for them. It is not unusual for the phone to ring and be told that they have just spoken to someone at Rockdoor and that “You are the men to speak to regarding an installation…”. We have fitted doors for people who are very well known and don’t want anything other than a good door with a first class service but complete anonymity. Verysecuredoors take many photos of their installations but sometimes the customer request that no mentions or any photos on social media whatsoever so we completely respect those wishes.

Jim and Josh can’t stress enough about getting a reputable installer for your new door as we get at least two calls a month from people who have had doors installed where things haven’t gone too well and that the company that had fitted their door had done a bad job and now have disappeared on them leaving the customer with a good door but badly fitted. A good door badly fitted actually becomes a bad door. Sometimes we can help out where possible but often the workload prevents being able to and it’s not nice to see someone who has paid out a lot of money for a premium door only to be let down by an installer who didn’t know what they were doing.

About Us

Read about our history and how we started fitting composite doors.

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Contact Us

Contact us today and get a free quote on your new composite door.

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View some of our installations we have carried out recently.

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What is a Composite Door?

Roughly speaking, a composite door a door made from modern materials that mimic the appearance of a natural wood door without some of the negatives that a wooden door can bring like having to paint it for example.

There are many makes, manufactures and styles of composite doors on the market ranging from average quality to very good quality. Some composite doors are mass produced in three different sizes and shipped over to the UK in containers ready to be machined to the right size, have the glazing fitted and possibly sprayed to the desired colour. A frame is made for the door, a locking system is attached and there you have a door. The door can only be as good as the quality of materials used and the workmanship bringing it all together. Generally these are the lower cost composite doors that we tend to stay away from because we would rather fit a better standard of door. After all they are built to a budget. The cheaper composite doors however make doors more affordable though so there is a market for them. One thing we don’t like about these door slabs shipped over in mass quantities is that because they use three different sizes you could find that the one used for your door has had a fair amount of material removed form the sides to get the width you require, thus weakening it in the process and making it easier to fail if someone tries to break in. The core for these doors is generally polystyrene or low density foam which sounds a bit lightweight but actually it is not as bad as it sounds but still not great!

The alternative way of building a door is the way the likes of Rocal Endurance, Solidors and Solid Core composite doors use. These are wooden cores cut to size so there is no weakening of the edges of the slab as the strength is consistent across the entire width and height of the door. Wood is heavier than foam so generally these doors are heavier so things like hinges need to be a consideration and a cheap hinge won’t do over time so a good quality strong hinge is required along with a frame strong enough to take the weight of the door. Because it is such a well made door and considered heavy duty compared to the light weight cheaper composites they almost always have better quality locks and cylinders too. All the doors mentioned so far use what is called a glazing cassette so the glass unit can be added towards the end of the build process and can even be changed down the line if one were to be broken by say a stone. In 15 years of dealing with doors we don’t come cross many broken glass units in doors to be honest.

Another composite door called the Rockdoor is built completely different from the timber doors. They use a foam filled door with a 10mm aluminium box section in the door slab and is made based upon the size required so you get the same strength around the edge of the slab on every door they make. Even though they are foam filled & having fitted over a thousand of these doors we have never come across one that has been broken into due to having a foam centre. Solidor like to make a point of the core of their doors being wood therefore harder to penetrate than a foam filled door but in the real world this isn’t really an issue. Where a Rockdoor is unique is in the fact that each glazing unit is built into the door as it is made and is integral to the door. The downside would be if the glass were to break but I have only come across one instance of this but it was shot at with a pellet rifle. A broken glass unit would mean a new slab would be required but it’s a non issue really.

All of the doors we fit are good quality and generally a customer will make their choice primarily based on the look of the door and the colour rather than the different features.

How to fit a Composite Door?

Perfectly is the correct answer. Here are a few very important steps to ensure your new door is properly installed: (not in an installation order) 

1) If your new door is sitting on a cill, ensure it is completely level, packed underneath so it doesn't flex when the weight of the door is put onto it and ensure it is sealed properly. If its not sitting on a cill, ensure the base layer (generally Stone) is level and flat.

2) Check that the door header across the top of the door is parallel. If the gap gets bigger towards the lock side, it either wants pushing across at the top towards the hinge side, or moving across towards the latch side at the bottom, depending on how it looks on the inside/outside. If the header is parallel but you have a swing on your door, the base/cill is not level. You will have to raise the cill on one side and then recorrect the positioning of the door.

3) It is important once the door is in to check the swing of the door, opening the door to 90 degrees tests the side to side level (please use a level to ensure complete accuracy), if it swings one way or another, the door is not sitting square, opening the door to around 30 degree will test the front to back level (please use a level to ensure complete accuracy), generally most plaster is out of level so you never push a door back to the plaster, it can only take a couple of mm to put a swing on a door. If it swings at around 30 degrees, then it wants the top or the bottom bringing forward or backwards depending on the situation. 

4) Check the twist. The twist on a door is an extremely important part of door installation. The twist refers to how twisted the frame is, you want the front edge of the door to be touching or pass the frame top to bottom at the same time, we often see doors that are shut on the latch and its touching the seal at the top of the door, but the bottom of the door is 6-10mm away from the seal, this is almost always because of the twist. To correct the twist, ensure the hinge side is level front to back and then move either the top or bottom of the lock side inwards or outwards to correct.

5) Ensure all fixings are packed and the remaining gaps are filled with expanding foam. Check with your level that the hinge and lock side of the frame are not bowed in any direction and are completely flat.

Solidor vs Rockdoor

Solidor vs Rockdoor. These are the two biggest names in the composite door industry. Many people compare Rockdoor and Solidor, ask which one is best, or ask which one do you recommend.

I recommend both Solidor and Rockdoor. They are both superb composite doors whilst being completely different.
The inner core of a Rockdoor is completely different to Solidor doors, both have their advantages and disadvantages. A Solidor is made from wood with a uPVC skin either side, a Rockdoor is made from a very high density foam with a uPVC skin either side with a 10mm aluminium box section along the perimeter of the door slab. The foam is very dense so even over a small area it still has incredible strength and combined with the very strong uPVC skin makes it very secure.

The Solidor doors uses a wood core which has it’s advantages too, such as being more resistant to being cut open, but in the real world this is never a likely scenario. Rockdoors advantages over Solidors are slightly better energy rating but negligible in the real world, and they have the highest security rating possible of any composite door.

Solidor advantages over Rockdoor is mainly that a Solidor uses a solid timber core, Solidor have a lot more accessories and furniture options including heritage and architectural types along with more door designs and glass designs than Rockdoor, however Solidor are not as secure depending on lock specifications chosen.