An innovative aluminium folding sliding door system which incorporates a radically different product design approach to deliver a new high performance fenestration framing solution: “warm aluminium”.

Every single component has been concept sketched, detail designed, prototyped, tooled, trial installed and rigorously tested by Synseal’s unrivalled Research & Development Team.

WarmCore is a great looking, high quality aluminium folding sliding door solution with peerless thermal performance ensuring end-user comfort, all year round.


Traditional French and residential doors can be constructed using the WarmCore system, in addition to a comprehensive range of bi-fold doors including all the popular elevational configurations and stacking options.

Folding sliding doors up to six metres wide incorporating seven sashes can be specified. A mid-rail option is also available. 

For more information on this great product please give us a call on 01675 442 819.