Dworks supplies and installs several aluminium doors profiles such as Reynaers, Schueco, Alitherm, Alutech, Stayfix, Cortizo and Smarts Heritage what is a perfect lower priced alternative for Critall style windows and doors.
Reynaers - https://www.reynaers.co.uk/
Schueco - https://www.schueco.com/web2/uk
Stayfix - http://www.stayfix.co.uk/
Smarts - https://www.smartsystems.co.uk/
Smarts Heritage - https://www.smartsystems.co.uk/product/132/alitherm-heritage
Cortizo - https://www.cortizo.com/