| DOORS DOMESTIC GLASS | BALCONETTE |
| CLEMENT WINDOWS GROUP LTD |
| CRITTALL WINDOWS LTD |
| DAD - DECAYEUX |
| HOWARTH TIMBER GROUP |
| ION GLASS LTD |
| KAWNEER UK LTD |
| PREMDOR CROSBY LTD |
| ROBUST UK LTD |
| SCHUECO UK LTD |
| DOORS DOMESTIC GLASS Curved Glass | BALCONETTE |
| DOORS DOMESTIC GLASS Custom Purpose Made Art Glass | ION GLASS LTD |
| DOORS DOMESTIC GLASS Frameless Hinged Doors | ION GLASS LTD |
| DOORS DOMESTIC GLASS Frameless Pivot Doors | ION GLASS LTD |
| DOORS DOMESTIC GLASS Glass/Metal Frame (Hinged) | CLEMENT WINDOWS GROUP LTD |
| CRITTALL WINDOWS LTD |
| IG DOORS LTD |
| KAWNEER UK LTD |
| ROBUST UK LTD |
| SCHUECO UK LTD |
| DOORS DOMESTIC GLASS Glass/PVC-u Frame (Hinged) | SWISH WINDOW AND DOOR SYSTEMS |
| DOORS DOMESTIC GLASS Glass/Timber Frame (Hinged) | HOWARTH TIMBER GROUP |
| KAWNEER UK LTD |
| MUMFORD & WOOD LIMITED |
| PREMDOR CROSBY LTD |
| SUNFLOW LTD |
| SWD BESPOKE LTD |
| SWISH WINDOW AND DOOR SYSTEMS |
| DOORS DOMESTIC GLASS Sliding Curved Glass | BALCONETTE |
| DOORS DOMESTIC GLASS Toughened BS 6206 Class A | CLEMENT WINDOWS GROUP LTD |
| ION GLASS LTD |
