At Koka Windows Ltd, we manufacture, supply, and install high-quality uPVC and aluminium flush sash windows, offering a perfect blend of traditional style and modern performance. Flush sash windows are designed to mimic the appearance of classic timber sash windows, with a sleek, clean finish that sits flush with the frame for an elegant, seamless look.
This makes them ideal for period properties, modern homes, and commercial buildings where style, security, and energy efficiency are equally important.
Our flush sash windows are made to measure in-house, using premium uPVC or aluminium profiles. This ensures a perfect fit, excellent durability, and long-lasting performance. Our experienced team maintains full quality control throughout the production process to deliver a window that not only looks stunning but also performs flawlessly.
Flush sash windows from Koka Windows Ltd feature advanced double-glazing units that help reduce heat loss, improve insulation, and maintain a comfortable indoor environment. With high-quality seals and precision engineering, they also minimise draughts and external noise, keeping your property warm, quiet, and energy-efficient year-round.
Security is a priority in every flush sash window we produce. Equipped with modern locking mechanisms, reinforced frames, and durable hardware, these windows provide peace of mind while maintaining a traditional aesthetic.
We offer a wide range of finishes, colours, and glazing options to suit your property and personal taste:
Alongside manufacturing, we provide professional supply and installation services. Our expert team ensures every flush sash window is fitted to perfection, offering long-lasting performance, flawless operation, and a beautiful finish.
Windows to the World, Doors to Your Dreams.