Bi-Folding Doors; which is better, UPVC or Aluminium?

So you’ve came to your senses and realised replacing those ageing, traditional doors for BI-Fold is in fact as valuable as every exterior design blog on Google tells you it is. Yet, the question still remains; which material do I choose? The material choice for your doors can be a perplexing process with numerous pros and cons for each. Hopefully, through this article, we’ve made that process a little clearer.


In terms of longevity, aluminium wins every time. Predictably, UPVC doors don’t have the best longevity. Most will only come with a guarantee of 10 years and they can start to look tired well before this, gaining a yellow or pink tinge. As a result of this, opting for low quality UPVC can cost you more over time. Of course, the strength of aluminium compared to UPVC means it has greater longevity and won’t take away from the aesthetical value of your home after a few years. Indeed, UPVC may be the cheaper but if it has poor longevity does paying less really make sense?


As a consequence of the poor longevity of UPVC, it can warp and bend with age, especially if exposed to direct sunlight for long periods, which can make them difficult to open and close. Being an exterior element of the house, UPVC therefore begins to apply difficulty to its purpose with age and makes the maintenance of the doors difficult as a result of the material. In comparison, Aluminium is flex, expansion and contraction resident and when in direct sunlight, requires very little maintenance to stay in good working order. Not only does the application of UPVC mean that it doesn’t last as long, it transpires that the maintenance of the door, as a result, will become increasingly difficult.

Aesthetical Value

Need I say more? Aluminium looks a lot better. With a crisp, sharp, metallic finish, Aluminium adds tonnes to the aesthetical value of the home and the door itself. One major worry back in the earlier days of using Aluminium was that the colour range would be limited to a typical metallic finish, black and white. However, times have changed and the Aluminium finish of the doors now varies in colour. That’s not to say UPVC looks bad, but the in-distinct nature it holds falls short to Aluminium, on an aesthetical scale.


In favour of UPVC, it is cheaper than your Aluminium finish. Aluminium doors are generally more expensive than the UPVC options and the higher price tag can put many people off. However, as stated in the benefits above, the easy maintenance of Aluminium Bi-Fold doors means that in the long run, they’re likely to be a better value option than lower priced UPVC doors, especially if these are also low quality and harder to maintain. You should also take heavily into account aesthetical value. As well as it’s practical reason’s, Bi-Fold doors are purchase because they look stylish and contemporary. If UPVC doors take away from that element, Aluminium should definitely be considered.