The strategic importance of window systems in energy-efficient renovation
Technology, sustainability, and design converge in Deceuninck systems, transforming window and door frames into active components that reduce energy consumption, enhance indoor comfort, and support the ecological transition in buildings.
In an era where energy efficiency has become a shared and essential goal, every building element can make a difference, even those we often consider secondary. Window and door systems, for instance, play a key role in a building’s energy balance. They improve insulation, help regulate indoor temperatures and serve as valuable allies in reducing emissions. Deceuninck, a leading manufacturer of window and door profiles, has built a clear and forward-looking industrial philosophy around this idea: contributing to the sustainability of the built environment, one window at a time.
For Deceuninck, sustainability is not merely a goal: it is a guiding principle that runs through the entire value chain, from material selection and design to manufacturing and end-of-life recycling. It is a daily commitment, driven by the belief that only innovation can truly make a difference. In this context, energy efficiency becomes a concrete response to a global challenge: every high-performance window or door helps reduce the energy demand of buildings and, consequently, CO₂ emissions. Deceuninck’s long-term strategy includes continuous investment in research, circular economy and material recycling, with constant attention to product quality and durability. A tangible example is the Diksmuide plant, one of the most advanced PVC recycling facilities in Europe. “Our vision is clear: building sustainable homes, one window at a time, for a greener future.”
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A trusted partner for renovation in Italy
In a context where energy efficiency has become a global priority, Deceuninck positions itself as a technical and strategic partner for all stakeholders in the value chain. Its products do more than meet insulation and durability standards; they are designed to integrate seamlessly into renovation projects that benefit from government incentives such as the Superbonus or Ecobonus. The company’s PVC and ThermoFibra systems significantly improve the building’s energy performance, helping increase its energy class and streamlining access to tax deductions.
But it’s not just about supplying window systems: Deceuninck works closely with architects, fabricators and construction firms, offering technical training, design consultancy and tools to support conscious, forward-thinking project development. Its mission? To accompany the energy transition, one window at a time.
Invisible efficiency, tangible results
What makes a window truly energy efficient? Deceuninck’s solutions are engineered in every detail to deliver high performance, even where it can’t be seen. Its PVC profiles feature multi-chamber structures that reduce thermal dispersion and enhance insulation. Advanced materials, such as continuous glass fibre co-extruded with door and window sash profiles (ThermoFibra), enhance structural stability and thermal performance without the need for metal reinforcements. Glazing plays its part too: the systems are compatible with low-emissivity glass and “warm edge” spacers that reduce thermal bridges and improve indoor comfort. Multiple gaskets ensure airtight and watertight sealing, while the profile geometry itself is optimised to maximise energy efficiency.
A real-world example comes from Bologna, where a renovation project using Deceuninck ThermoFibra windows led to a 35% reduction in heating energy demand, improved the building’s energy class, and enabled residents to access renovation tax benefits.
Three solutions for three different needs
Every building is unique. That’s why Deceuninck offers a wide range of systems tailored to different architectural contexts, without compromising on performance, design or sustainability. Elegant ThermoFibra sits at the top of the range for energy efficiency: the profiles are extruded with continuous glass fibre reinforcement, delivering high structural stability and thermal insulation while eliminating the need for metal reinforcements and reducing thermal bridges. Elegant Infinity, on the other hand, is appreciated for its versatility and squared, modern design—ideal for urban or residential renovation projects. Finally, iSlide#neo is the perfect solution for maximising natural light in compact spaces, offering a ThermoFibra sliding system with reliable thermal performance and sealing.
These systems are among the most in-demand because they combine high performance, indoor comfort and sustainability, contributing to improved building energy ratings and facilitating access to tax incentives.
Concrete support for accessing incentives
Energy renovation isn’t just a design choice: it’s a process that involves regulations, certifications and often-complex tax procedures. Deceuninck supports its clients throughout this journey, simplifying each step with a comprehensive assistance model. The first step is providing all the technical documentation needed to access incentives, including product datasheets, Declarations of Performance (DoPs), thermal transmittance certifications and compliance with Minimum Environmental Criteria (CAM). This is complemented by ongoing training, through webinars and technical workshops, for window professionals and designers, ensuring they are always up to date with current regulations. In more complex cases, Deceuninck works with a network of qualified partners who can manage the entire incentive application process, from preliminary assessment to final approval.
Field-tested results: the Florence case study
Theory becomes reality in one of Deceuninck’s most representative case studies, a 1970s residential building in Florence. Here, the replacement of old window units with Elegant ThermoFibra systems led to substantial improvements in energy performance. The results are clear: the building’s energy class improved from G to B, heating consumption was reduced by 40%, and residents qualified for the 110% Superbonus. Alongside these benefits, occupants experienced a marked increase in thermal comfort and acoustic insulation, making a real impact on daily life quality.
Looking ahead: a green, digital and high-performance future
The growing awareness among consumers and industry professionals is steering demand toward solutions that combine performance, aesthetics and environmental responsibility. Deceuninck sees a clear direction in this shift: in the coming years, the market will reward companies able to deliver intelligent, home-automation-ready products that meet the evolving needs of sustainable living. In short, the future of window systems is increasingly green, digital and high-performance and Deceuninck is ready to lead the way.
