Choosing the right frame material is an important part of any commercial fenestration project. Architects, contractors, developers and building owners all need to consider a range of factors, from appearance and thermal performance to durability, maintenance and cost.
Both aluminium and uPVC offer valuable benefits for commercial applications, but they suit different needs. The best choice will depend on the building’s design, the project specification and what matters most to the customer.
For fabricators, installers and property developers, understanding the differences between the two materials will make it easier to recommend the right solution for each project.

Aluminium is a strong choice for commercial projects where structural strength, slim sightlines and expansive glazing are essential. Its properties make it particularly suitable for shopfronts, entrance screens, office developments and contemporary buildings where glazing is central to the architectural design.
Slim frame sections are a great way to maximise natural light, while their wide selection of finishes allows aluminium systems to complement different building styles.
At Deceuninck, our Decalu aluminium range includes casement and tilt-and-turn windows, flush designs, bi-folding doors, lift-and-slide doors and entrance doors. For any developments featuring larger glazed facades, the Decalu F50 curtain walling system is also an excellent option.
With its combination of design versatility and strength, aluminium is most suited to projects that are looking for distinctive, modern aesthetics, larger glazed areas or specialised opening configurations.

uPVC offers a balance of thermal performance, low maintenance and cost-effectiveness, making it a popular option for housing, education, healthcare and lower-rise commercial developments.
Deceuninck’s uPVC portfolio includes several window styles, such as the 2500 flush window, 2500 chamfered sash window and 2800 sculptured sash window systems. The door range includes Slider24 patio sliding doors, French doors and triple track doors, giving our customers options for different building layouts and specifications.
The 2500 chamfered system features clean, defined lines, while the 2800 sculptured system delivers a more traditional appearance. This variety allows specifiers to select a style that complements the building without compromising on performance or security.
For projects where insulation, ease of upkeep and budget are key considerations, uPVC is a fantastic solution that can meet a wide range of commercial needs.

Deceuninck’s Decalu aluminium systems and uPVC window and door solutions aim to give commercial fenestration businesses flexibility across a wide variety of project types.
Aluminium is often the preferred option for contemporary designs, slim sightlines and larger glazed areas, while uPVC may be better suited to projects prioritising thermal efficiency, minimal maintenance and value for money.
Assessing the building’s intended use, architectural requirements, performance targets and available budget is the best way to select the right system.
Every commercial project has its own priorities. A retail development may place particular emphasis on glazed areas and visual impact, while a housing programme may lean more heavily on thermal performance, maintenance and overall value. Other projects will need to balance several of these factors in tandem.
By offering both aluminium and uPVC systems, we always give our customers a wide range of options to suit their project requirements. Our aim is to help fabricators, installers and specifiers make informed decisions based on the needs of the building, the intended application and the customer’s expectations.
There may also be opportunities to combine materials within a single development. Using Decalu for wide-spanning glazed facades or entrances and Deceuninck’s uPVC range for other windows and doors can help address the specific requirements of individual buildings, without needing to work with multiple different systems companies.
If your next project calls for the design flexibility of aluminium or the practical benefits of uPVC, our team at Deceuninck is here to support you.
Explore our Decalu aluminium systems alongside our uPVC systems to learn more about the available designs, configurations and specifications.
Please get in touch with our team to discuss your next commercial fenestration project, explore our product ranges or request a quote.
