Custom Bespoke Makers of uPVC A-Rated Casement Windows for Swansea SA2. Brynmill, Cockett, Derwen Fawr, Dunvant, Fairwood, Glanmor, Hendrefoilan, Hendrefoilan Student Village, Ilston, Killay, Sketty, Sketty Park, Tycoch, Uplands, Upper Killay, and all surrounding areas.