This side-hung casement window with a fixed top light is a practical and well-balanced option for many UK homes. It is designed as one complete unit, divided by a real horizontal transom, with a fixed glazed section at the top and an opening casement below. This layout works especially well where you want extra daylight without making the window too tall or difficult to use.

The top section is fully fixed, allowing natural light to flow in while keeping the structure sealed and energy efficient. Below it, the side-hung casement opens outward, giving you simple and reliable ventilation when needed. Because only the lower part opens, everyday use feels more controlled, and heat loss is reduced compared to having two opening sections.

This configuration is commonly used in stairwells, hallways, bathrooms, and rooms with higher window positions. It also suits period-style properties where proportions matter, while still fitting naturally into more modern homes. Many customers choose this style when they want the traditional look of uPVC casement windows but with a more practical split between light and airflow.

From a performance point of view, the fixed top light helps improve overall thermal efficiency and keeps maintenance to a minimum. With fewer moving parts, there is less wear over time, and cleaning remains straightforward from the inside.

As part of a wider range of uPVC windows, this design can be matched with other casement layouts across your home for a consistent appearance. It offers a clean, reliable solution that balances comfort, light, and everyday usability without unnecessary complexity.