| A & B Plumbing & Heating, Derby, DE72 3SW |
| A & B Plumbing & Heating, Willow Lodge, Rushy Lane, RIsley, Derby,, DE72 3SW |
| DPM Plumbing Heating and Roofing, Ilkeston, DE7 4PZ |
| Mark Collins Plumbing & Heating, Nottingham, NG10 4AT |
| Jigsaw Gas, Nottingham, NG9 3RQ |
| Breaston Mechanical Services Ltd, Derby, DE72 3DP |
| Royale Residential Services Ltd, Ilkeston, DE7 4LE |
| J & L Heating Ltd, Derby, DE72 3HP |
| Specialized Gas & Heating Technician, Nottingham, NG9 3JW |
| Em-Gas & Heating Solutions, , NG9 6GE |
| IMR Mechanical Services Ltd, Derbyshire, NG10 3HP |
| Dyno Heating, Ilkestone, DE7 8EF |
| D J Heath Plumbing & Heating, Nottingham, NG9 5FF |
| Wilson Solutions, Nottingham, NG9 5GB |
| RJM Gas Services, , NG8 2ES |
| TrentMec, Nottingham, NG8 2RE |
| Rn Plumbing & Property services, Ilkeston, DE7 6FT |
| Attenborough Heating Ltd, Nottingham, NG9 4DH |
| Gas Appliance Servicing (Derby), , DE21 2QY |
| G K Plumbing Services Ltd, Derby, DE72 2HE |
