Make the Best Choice
Value For Money

One of the factors considered will inevitably be the cost of the materials and this will probably influence decisions one way or the other. When it comes to pricing, however, uPVC is usually the cheapest material on offer after things like aluminium and timber. This is far from uPVC’s greatest attraction, but its relative cost effectiveness is certainly a bonus that makes a difference.

Low Maintenance

Another hugely appealing feature of uPVC is that it is remarkably low maintenance. Aluminium is resilient, but still needs attention every now and then. On the other hand, uPVC never rots, flakes, rusts or fades. Apart from a quick wipe with a cloth to keep it clean, uPVC requires virtually no maintenance making it very convenient and time-saving


Un-plasticized Polyvinyl Chloride is also the most durable of the materials available. Aluminium can pick up rust whereas uPVC is strong, tough and resilient. It is highly unlikely uPVC will need to be changed and some companies even offer up to 10 year guarantees on uPVC double glazing


Due to its resilient and robustness, uPVC is very reliable and trustworthy when it comes to security. Their frames are constructed to the utmost hardness making it extremely difficult to break through or damage. Aluminium is similarly if not more secure, however, and is considered to be almost totally burglar-proof due to its strength. But uPVC is not far behind.

Insulation/Sound Proofing

Insulation is another feature of the uPVC material that surpasses aluminium. uPVC was created to be a very competent insulator and provides the best heat and energy insulation available. It is a very good insulator compared to the alternative of aluminium and this ability to keep heat in and sound out is largely responsible for its popularity.

Visual Appearance

The major shortcoming of uPVC is undoubtedly its aesthetic value. In many people’s eyes, its simple, white plastic look is far from attractive and some consider uPVC frames to look unstylish or plain when compared to aluminium. With some larger companies, different colours of uPVC are now available, but when replacing windows whilst trying to keep the character of the home, uPVC may not be ideal. In fact, for listed buildings and those within conservation areas, local planning councils would be likely to insist on timber or aluminium frames.

Diferences Aluminium and PVCU

Better Understanding of the Technology
Thermal Conductivity

Material which PVC profiles are produced from has a lower coefficient of thermal conductivity in comparison with aluminium profiles and that's why PVC windows retain more heat in the room compared to aluminium frames. For the same reason with PVC windows it is easier to avoid frost.

Quicker Delivery

PVC joinery is manufactured and installed more easily, because of the nature of the material which is softer and more flexible than aluminium. Therefore delivery is quicker and simpler.

Alternative Selection

There is less choice of colours, compared to aluminium. Standard colours that are kept in stock are around 10. Among them are: white, golden oak, dark oak and Irish oak, mahogany, cherry, soft cherry, grey anthracite and others. Some of them are in stock, others are supplied for about two weeks, while the supply of non-standard colours takes approximately 2 months.


PVC profiles can be recycled. Recycling makes a real difference in protecting our environment. Recycling helps conserve important raw materials and protects natural habitats for the future.


There are mentoring aluminium casings that allow to form almost unlimited colour windows and doors of selected profile systems of KMG. In this way, seamless optical coordination with aluminium facades. So you combine the advantages of aluminium in the colours of the advantages in thermal insulation of PVC profiles. Aluminium shells mentoring can be anodised and painted by firing in all RAL-colours. Advantages - cheaper alternative to aluminium windows. Easy to maintain surfaces.

Complex Solutions

System with lift-slide doors KMG can be implemented elegantly harmonious transitions from living quarters to the balconies and terraces. Large glass areas flooded with light and open space environment - lifting-sliding doors enhance the quality of living.


Aluminium profiles don't change their look through the years. The strength of this material allows complex solutions such as structural and curtain walls, roofing, conservatories and even used for making security doors, fire doors and such structures, which require greater strength. For the same reason there are systems for aluminium partitions. Aluminium is resistant to fire and earthquake, and is also resistant to large temperature differences.


The interior doors are made primarily of aluminium, because it allows mounting of hardware, which is significantly cheaper in comparison to that mounted on PVC doors, which require handles on both sides of the door