| Belfast Boiler Services - 574-576 Ballysillan Road - BT14 6RN |
| Belfast Energy Agency - 1-11 May St - BT1 4NA |
| Belfast Oil Supplies - 6 Church Wynd - BT5 7QJ |
| Calor Gas - Airport Road West - BT3 9EE |
| Cawoods Coal - Unit 10 - BT3 9AP |
| Coal Handling - Dufferin Rd - BT3 9AA |
| Danros Heating Services - Bridgewood House - BT9 5NW |
| Down Oil Supplies - Belfast Oil Supplies - BT5 7RZ |
| Ellison-Pettis - Unit 14-16 - BT3 9JL |
| Flo Gas - Airport Road West - BT3 9ED |
| Heatcall Boiler & Pumps Ltd - 16B Robbs Road - BT16 2NA |
| Heating Control & Devices - 8-10 Tamar Street - BT4 1HS |
| Holywood Plumbing & Heating - 1 Ballymacarrett Road - BT4 1BT |
| Phoenix Natural Gas - Phoenix Natural Gas Ltd - BT3 9ED |
| T M C Services - 24 Duncrue Cres - BT3 9BW |
| The Grant Group Ltd. - 47a Linfield Industrial Estate - BT12 5LA |
~
|
|