| L Parker | 01226 754572 | | 131 Station Road, Wombwell, Barnsley, S73 0BN |  Map & Directions |
| Ace Damp Proofing | 01246 260534 | | 75 Coniston Road, Chesterfield, S41 8JE | | Map & Directions |
| Sapcote P C R | 0114 275 2946 | | Sheffield Design Studios, 40 Ball Street, Sheffield, S3 8DB | | Map & Directions |
| Cannon Damp Proofing | 01226 289670 | | Providence House, 42 Sackville Street, Barnsley, S70 2DB | | Map & Directions |
| Higginbottom & Lascelles | 0114 245 5125 | | 1 Drake Close, Chapeltown, Burncross, Sheffield, S35 1TB | | Map & Directions |
| P. P. Damp-Proofing & Construction | 01709 877118 | | 1 Lynthwaite Close , Brampton Bierlow, Rotherham, S63 6ES | | Map & Directions |
| Sentinel Specialist Services Ltd | 0800 542 3664 | | 349 Langsett Road, Sheffield, S6 2UP | | Map & Directions |
| Crystal Timber Preservation & Damp Proof | 01909 772097 | | 7 Danby Road, Kiveton Park, Sheffield, S26 6LU | | Map & Directions |
| Dower Tekron | 0114 246 2434 | | 41 Bentley Road, Chapeltown, Sheffield, S35 1RH | | Map & Directions |
| Northern Preservation | 01226 370344 | | 18 Market Street, Penistone, Sheffield, S36 6BZ | | Map & Directions |
| Cellar Seal | 0800 038 6426 | | Wicker Works, 11-15 Brunswick Road, Sheffield, S3 9LN | | Map & Directions |
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