Alitherm windows and doors offer – Greater comfort, better insulation, minimal maintenance, aesthetically pleasing appearance and enhanced security. In short, the Alitherm product range offers you peace of mind but even more it represents a sound investment in your property. Whatever your taste or style of home, we can offer distinctive window designs to suit. Our unique style of windows are available in a wide choice of finishes and colours.

• Fixed lights
• Open out windows
• Internally or externally beaded windows
• Equal leg outer frame
• Odd leg outer frame
• Externally beaded cockspur locking vent frame
• Internally beaded locking vent frame
• Transom/mullion with screw ports
• Transom/mullion without screw ports, for use with mechanical cleat
• Flush coupling adapter
• Head extension for trickle ventilator
• 24mm, 28mm and 32mm square external glazing beads
• 24mm square internal glazing bead