If you are in the market for a new front or back door, composite doors are one of the many options available to you.

By now, you have probably noticed that composite doors are more expensive than UPVC doors. So the question is, are there any advantages to composite that make the extra outlay worth it? Should you go to composite?

In this article, we’ll discuss the advantages of composite doors with a few comparisons to UPVC to help you come to the right decision.


The outer material of a composite door is made from glass-reinforced plastic (GRP) which is another name for fibreglass.

GRP (‘fibreglass’) is stronger and more impact resistant than UPVC. This makes it more difficult to ‘kick in’. When door manufacturers make high-security doors for homes, they like to make them out of GRP for this reason.


The ‘strength’ of a door is only part of the tale when it comes to durability. For a door to be durable, it also needs to have a good build. This means a steel frame, a solid core and foam to insulate and absorb shock and impacts.

When similar doors made from composite and UPVC are compared in stress tests, composite doors tend to fare better than their UPVC counterparts. This is because the GRP does not give way like UPVC when stressed. GRP doors also tend to be thicker, for a greater level of insulation and home security.


Composite doors are designed to last 30 to 40 years. This is a long time, and it will probably exceed the amount of time you stay in your current home.

Compared to other doors, composite compares favourably. A hardwood door will last 15 to 20 years and a UPVC door will last 20 to 30 years.

Crucially, composite doors do not discolour (as with UPVC from sun exposure) nor do they require maintenance (as with timber doors, which may need new sills or weather bars over time). Composite doors sit pretty throughout their life.


Composite doors tend to be a little more efficient than UPVC doors owing to their greater density and thickness. Both types of door will reduce the amount of heat you leak and stop draughts from sending a shiver down your spine.

Compared to wooden doors, composite doors are more efficient because they are made from materials that better insulate a building. They normally have a solid timber or plastic core with a thermal lining to prevent heat transfer.

Styling, colours & design

One of the advantages composite doors have over UPVC doors is they have no plasticky sheen. Composite can be a much more convincing replica of hardwood and most people will not be able to tell the difference until they knock on it.

You can now get composite doors in any style, colour or design. They are just as readily available as UPVC doors. You can also choose a smooth or timber effect. The styling options are endless, just like with timber and UPVC.

Is a composite door right for me?

On average, composite doors cost 30% more than UPVC doors. You won’t earn this money back from lower energy bills, but you will have a more secure home.

The reason composite doors are more expensive is that they are manufactured in a more sophisticated way using more expensive materials. The benefit to buying into this is you get a more secure door to keep your home safe.

Is the extra security worth it? That’s for you to decide. In our opinion, the quality and security of composite doors make the extra cost worth it. Also, composite doors look more like timber than UPVC, making them nicer to look at.