For your new timber-aluminium windows, you can choose from a range of window profiles – each available in several different designs. What's more, the windows can be totally customised to suit your taste and project, from any RAL colour for the external aluminium cladding, a choice of oak, spruce, larch, or walnut for the internal timber, and a selection of stylish window handles. Internorm timber-aluminium windows and doors, offer outstanding thermal performance, noise reduction and security.