Advice before the choice
We listen to your home, wishes and timing before suggesting products.
Light, comfort and character
Custom windows
PVC, aluminum or wood: we help you choose the window that suits your home, budget and energy ambitions.
Well-thought-out customization
A solution that is right for your home.
Whether you are renovating or building new: Cose supplies custom windows with attention to light, comfort, safety and energy efficiency. With more than 15 years of experience, we tailor each window to the home and the desired appearance.
We work with PVC, aluminum and wood for the construction. Each material has its own technical and aesthetic qualities. In the showroom you can compare profiles, colours, structures, fittings and glazing side by side.
Strong thermal and acoustic insulation
Wide choice of profiles, colors and glazing
Professional measurement and neat installation
Custom windows
Custom PVC windows
PVC combines a strong price-quality ratio with excellent heat and sound insulation, easy maintenance and many shape and color options. Wood structures, satin and relief surfaces allow for both a rural and contemporary look.
Cose works with Belgian profile technology from Salamander and Aluplast. Modern profiles and double or triple glazing help limit heat loss and energy costs.
- Good resistance to various weather conditions
- Burglary-resistant fittings and extra security possible
- Recyclable, colourfast and easy to maintain
Custom windows
Customized aluminum windows
Aluminum is light, strong and particularly suitable for slim profiles and large glass areas. The material is durable, low-maintenance, recyclable and available in hundreds of colors and finishes.
Hidden hinges, a hidden wing and a different interior and exterior color provide additional design freedom. Thermally broken profiles combine that freedom with strong insulation and security.
- Slim profiles and maximum light
- Matt, gloss, metal look and textured lacquer possible
- Suitable for large, curved and special window shapes
Custom windows
Custom wooden windows
Wooden windows bring warmth, peace and character to a home. Wood is naturally insulating and can last for decades with proper maintenance.
You can paint or stain wooden windows if you want a different look later. This means they remain a flexible choice for both characterful renovations and new construction.
- Natural, warm appearance
- Naturally thermally insulating
- Repairable and refinishable
Craftsmanship and aftercare
More than 15 years of experience
Cose supervises new construction and renovation projects from advice and measurements to installation and finishing. Even after delivery, we remain available for questions and aftercare.
Clear answers
Frequently asked questions about custom windows.
Your project may have different technical requirements. During the measurement you will receive advice for your specific situation.
Should I choose PVC, aluminum or wood?
That depends on the desired appearance, span, maintenance expectations and budget. During the advice we compare the options for your project.
Can existing windows be replaced without major demolition work?
Often yes. After a technical measurement, we explain what disassembly, connection and interior finishing are required.
What different types of windows are there?
In addition to fixed windows, there are turn, tilt and turn windows, sliding windows, skylights and combinations. The best choice depends on light, ventilation, operation and available space.
What is the average lifespan of windows?
As an indication, high-quality PVC windows often last 35 to 45 years, wooden windows 30 to 50 years with proper maintenance and aluminum windows 40 to 60 years. Placement, use, environment and maintenance determine the actual lifespan.
How do I improve the insulation value of my windows?
Combine a well-insulating profile with high-efficiency or triple glazing and an airtight and watertight connection. Spacers, window division and ventilation concept also play a role.