| Company | | Notes | Address | Town | TelNo | Mobile | Web Site |
| Dinas Windows Ltd |  | | Unit 16; Ty Verlon Industrial Estate | Barry | 0800 026 0587 | | |
| MPN uPVC Products Ltd |  | Windows, doors & conservatories | Unit 2; Maesteg Business Centre; Heol-ty-Gwyn Ind Estate | Maesteg | 01656 812788 | | |
| Mr Windows (Cardiff) Ltd |  | Manufacturers & installers of Hi uPVC windows, doors, conservatories, porches | Unit 5-5; Argyle Way; Ely Distribution Centre; Ely | Cardiff | 02920 597070 | | www.mr-windows.co.uk |
| Securahome uPVC Ltd |  | Manufacturers & installers of luxury conservatories, windows, doors, patio doors, bi-fold doors, sash windows, fascia & guttering | Kestrel Way; Garngoch Ind. Park | Gorseinon | 0500 21 22 24 | | www.securahome.co.uk |
| Vellacine |  | | Hadfield Road; Leckwith | Cardiff | 029 20 228578 | | www.vellacine.com |