Finstral is one of Europe’s leading manufacturers of premium windows, doors and glass wall systems, recognised for combining refined design with outstanding technical performance. What truly sets Finstral apart is its fully integrated manufacturing approach. From profile development and insulation glass production to final assembly, every stage is carried out in-house, ensuring complete quality control and consistently exceptional results.
With a strong focus on versatility, Finstral offers a modular product range that allows homeowners to tailor every detail to their personal style. Materials, colours, glazing and functionality can all be customised, while each system is built around a high‑performance uPVC core that delivers excellent insulation, durability and long‑lasting comfort.
Designed to create bright, comfortable and energy‑efficient living spaces, Finstral products meet the highest standards of sustainability and contemporary design. With 14 production sites and around 1,600 employees across Europe, Finstral brings together decades of expertise and continuous innovation to deliver premium solutions that are built to last. Whether for new builds or renovation projects, Finstral provides a reliable and beautifully engineered choice for modern homes.
Windows
Premium Windows Where Design Meets Performance
Finstral windows are designed to deliver uncompromising aesthetics and performance. With one of the widest window ranges in Europe, homeowners can choose from an extensive selection of sash styles, materials and colours. Options range from sleek aluminium and all‑glass designs to innovative hybrid systems, ensuring every window complements both the architecture of the home and individual design preferences.
Beyond visual appeal, Finstral windows excel technically. High‑quality insulation glass, premium uPVC cores and precision‑engineered frames provide outstanding thermal efficiency and effective sound reduction. Advanced locking systems and robust hardware are fitted as standard, enhancing security and helping to protect the home.
Finstral also offers intelligent solutions for renovation projects. The innovative slide‑in installation system allows existing uPVC or aluminium windows to be replaced quickly and cleanly, often in under two hours, without major building work. The result is a modern, high‑performance window that significantly improves comfort, efficiency and appearance.
Finstral Window Range
Aluminium Windows
Finstral aluminium windows combine sleek, contemporary design with excellent energy efficiency. A high‑performance uPVC core ensures outstanding insulation, while the aluminium exterior offers durability and a modern aesthetic. With over 200 colour options and multiple sash styles available, each window can be precisely tailored to suit your home.
Timber Inlay
Finstral timber windows bring the warmth and character of natural wood interiors, available in spruce or oak, together with modern performance standards. A weather‑resistant aluminium exterior and insulated uPVC core provide durability, low maintenance and excellent thermal performance. With a wide choice of elegant wood finishes, these windows offer timeless appeal.
Customisable Modular Window Systems
Finstral’s modular window systems offer exceptional design freedom. Through the innovative Inlay concept, interiors can be customised with materials such as softwood, hardwood, enamelled glass, aluminium, ceramic or metal. This flexibility allows for truly bespoke window designs, delivering a complete, future‑focused solution for modern architecture.
Delivered with Expertise
Finstral windows represent the highest standards of quality, innovation and craftsmanship. From concept to completion, every system is engineered to enhance comfort, efficiency and style, making Finstral a premium choice for discerning homeowners seeking windows that perform as beautifully as they look.
Why Choose Banbury Windows & Conservatories?
- Quality You Can Trust – We use premium materials and expert installation to deliver long-lasting performance and stunning results.
- Local Expertise – Proudly serving Oxfordshire and surrounding areas with decades of industry experience.
- Tailored Solutions – From windows to conservatories, every project is designed to match your home’s style and needs.
- Trusted & Accredited – Backed by Which? Trusted Trader status and strong customer satisfaction.
At Banbury Windows & Conservatories, we combine craftsmanship, care, and cutting-edge products to enhance your home’s comfort and curb appeal. From energy-efficient windows to beautifully designed conservatories, our team ensures every detail is finished to perfection.
Book an appointment or request a callback
Got a question for us? Or do you want to book an appointment? Fill in the form below and we'll aim to respond within 24 hours.
Fast forward 2 and half years later and one of our bedroom windows cracked when it was slammed shut in the wind. We contacted Banbury windows and conservatives to ask about getting it fixed, we sent them the info they needed and they emailed us to say the window had arrived and they would be out to replace it free of charge. We wasn’t expecting that at all. Absolutely top notch service and after care from start to finish. We will always use Banbury windows and conservatories in the future.
