| DOORS DOMESTIC STEEL | CLEMENT WINDOWS GROUP LTD |
| CRITTALL WINDOWS LTD |
| DAD - DECAYEUX |
| HÖRMANN (UK) LTD - DOMESTIC DOORS |
| HÖRMANN (UK) LTD - INDUSTRIAL DOORS |
| IG DOORS LTD |
| REA METAL WINDOWS LTD |
| ROBUST UK LTD |
| DOORS DOMESTIC STEEL Glazed | CLEMENT WINDOWS GROUP LTD |
| CRITTALL WINDOWS LTD |
| HÖRMANN (UK) LTD - DOMESTIC DOORS |
| IG DOORS LTD |
| REA METAL WINDOWS LTD |
| DOORS DOMESTIC STEEL Secured by Design | DAD - DECAYEUX |
| HÖRMANN (UK) LTD - DOMESTIC DOORS |
| IG DOORS LTD |
| REA METAL WINDOWS LTD |
| ROBUST UK LTD |
| DOORS DOMESTIC STEEL Steel Faced Aluminium Core | DAD - DECAYEUX |
| DOORS DOMESTIC STEEL Steel Faced Polyurethane Core | IG DOORS LTD |
| DOORS DOMESTIC STEEL Steel Faced Steel Core | CRITTALL WINDOWS LTD |
| DAD - DECAYEUX |
| HÖRMANN (UK) LTD - DOMESTIC DOORS |
| HÖRMANN (UK) LTD - INDUSTRIAL DOORS |
| IG DOORS LTD |
| REA METAL WINDOWS LTD |
