What Are Casement Windows? A Complete Beginner’s Guide

Casement windows are one of the most classic and functional window types used across homes and buildings worldwide. Hinged on the side and opening outward like a door, they offer excellent ventilation, unobstructed views, and a tight seal when closed. In this beginner’s guide, we’ll explain exactly what casement windows are, how they work, and why they’re a smart choice for modern homes.

We cover key benefits such as energy efficiency, noise insulation, ease of operation, and how their crank-based mechanism makes them ideal for hard-to-reach places like over kitchen sinks. Casement windows also pair well with other window types like fixed or picture windows for a more dynamic architectural effect.

Learn about frame options like uPVC, aluminium, and wood, as well as glazing choices for enhanced performance. Whether you're building a new home or replacing old windows, casement windows offer a combination of style, simplicity, and function.