You won’t find any welds on an Ultimate Rose – everything is fully mechanically jointed.
Using our custom-designed jigs, blocks and brackets, every join on the frame and sashes is finished as a butt joint – just like a timber window.
What’s more, the frame is joined horizontally while the sashes are joined vertically.
Not only does this add strength and rigidity, it accurately mimics the way original timber sashes were joined.
It’s this attention-to-detail that makes Ultimate Rose the most authentic, conservation-friendly uPVC sash window on the market.