Adoored have one quite similar to this - We know it as a Victorian Ascot Classic Composite door. Shown in Grey.
Red 1930's Composite Front Door
Rockdoor Composite Door
French Grey Solidor with Bespoke Satin Glass, Urmston
Tenby Solidor Composite Door by Timber Composite Doors in Grey
upvc grey front doors - Google Search
New composite front door in chartwell green. Fitted by Pennridge & Wells Lincolnshire. Highly recommended.