Technology & Design
Cutting-edge design and quality craftsmanship makes these windows suitable for replacing old windows or for a newly built opening. Thermally insulated frames come in several different types and sizes. As a result, these windows fit directly to the new opening or quickly and neatly replace old windows. They also come with frame options to fit timber, stone or other types of surround.
Casement windows feature opening elements opening to the side or outwards from the bottom.
The design of our Alitherm casement windows range ensures you get the perfect combination of opening elements, proportions and overall window design. Thermally enhanced profiles work with the high specification glass units, maximising the light into your home and providing excellent ventilation when open and energy efficiency when close.
Durable powder coated finishes are low maintenance, easy to keep clean and protect the aluminium surface from the elements.
Alitherm 300 windows meet the need for a slimline aluminium window with a modern design and ideal for replacing old cottage windows, steel windows or where you want the thinnest possible sight lines. These also offer the thinnest proportions in new build openings especially.
Alitherm 600 windows offer all the features of the 300 range but with marginally bigger frame profiles, contemporary square edge profiles and allows the creation of bigger window sizes, with improved thermal performance.
Alitherm 800 windows is the top-of-the-range window offering excellent aesthetics and window energy ratings.