| Warwickshire Fire & Rescue Service | Nuneaton | — | 0247 383486 | Open → |
| Watford Borough Council | Watford | buildingcontrol@watford.gov.uk | 01923 226400 | Open → |
| WATSON | — | — | — | Open → |
| WATSON | — | — | — | Open → |
| WATTS GROUPE PLC | — | — | — | Open → |
| Waveney District Council | Lowestoft | pbc@eastsuffolk.gov.uk | — | Open → |
| Waverley Borough Council | Godalming | buildingcontrol@waverley.gov.uk | 01483 866311 | Open → |
| Wayn Battersby Westwood Homes | Howden | — | — | Open → |
| Wayne & Helen Butterworth | Leeds | — | — | Open → |
| Wayne Battersby | Barmby on the Marsh | — | — | Open → |
| Wayne Howe | Leeds | — | — | Open → |
| WAYNE JACKSON | — | — | — | Open → |
| Wealden District Council | Hailsham | building.control@wealden.gov.uk | 01892 602005 | Open → |
| Wear Valley District Council | County Durham | — | 01388 765555 | Open → |
| Websters (Burn) Ltd | Nr Selby | — | — | Open → |
| WEBSTERS BURN LTD | — | — | — | Open → |
| WEEDFREE LTD
HOLLYTREE FARM
BALNE
NR SELBY
NORTH YORKSHIRE | — | — | — | Open → |
| Wei Meng | Leeds | — | — | Open → |
| Wellingborough Borough Council | Wellingborough | buildingcontrol@wellingborough.gov.uk | 01933 231940 | Open → |
| WELLS | — | — | — | Open → |
| Welwyn Hatfield District Council | Hertsfordshire | buildingcontrol@welhat.gov.uk | 01707 357391 | Open → |
| WENDY GRAINGER | — | — | — | Open → |
| Wendy Robinson | York | wendy-robinson67@hotmail.co.uk | — | Open → |
| Wendy Sutherland | Leeds | — | — | Open → |
| WENDY WRIGHT | — | — | — | Open → |