Casement windows are generally considered to be more energy-efficient than other types of windows because of their design. When closed, the window sash presses tightly against the frame, creating a seal that prevents air from leaking in or out. This helps to keep the home warmer, reducing the need for additional heating, which can lead to lower energy bills.
Additionally, because casement windows open outward, they allow for better ventilation than other window types. This can help to reduce the need for air conditioning in hot weather, further reducing energy consumption.
The energy efficiency of a casement window can also depend on factors such as the quality of the window itself, the materials used in its construction, and the quality of the installation. Choosing high-quality, energy-efficient casement windows and having them installed by a professional can help to maximise their energy-saving potential.