| M M Building Services Ltd | 028 9062 4411 | | Unit 5/6 Glenand Centre, 5 Blackstaff Way, Kennedy Way Industrial Estate, Belfast, BT11 9DS |  Map & Directions |
| Adrian Magorrian | 028 4372 4688 | | 17 Ardaluin Court, Newcastle, BT33 0RT | | Map & Directions |
| Belmont Plumbing Services | 028 9069 4301 | | Po Box 781, Belfast, BT8 7PA | | Map & Directions |
| M Millar | 028 9446 9382 | | 202 Belfast Road, Muckamore, Antrim, BT41 2EY | | Map & Directions |
| B J Mckay | 028 9447 2678 | | 120 Magheralane Road , Randalstown, Antrim, BT41 2PD | | Map & Directions |
| M Nugent | 028 8775 8617 | | 2 Tandragee Road, Pomeroy, Dungannon, BT70 3DS | | Map & Directions |
| P & E Services | 028 9083 7564 | | 111 Church Road , Newtownabbey, BT36 6HG | | Map & Directions |
| Allen & Graham | 028 9024 5452 | | 37 Pandora Street, Belfast, BT12 5PR | | Map & Directions |
| T J Mcconnell & Sons | 028 7136 9161 | | 32 Balliniska Road, Londonderry, BT48 0NA | | Map & Directions |
| J Bunting | 028 9060 0606 | | Blackstaff Road , Kennedy Way Industrial Estate , Belfast, BT11 9DT | | Map & Directions |
| Evans Brothers | 028 9041 0354 | | 4 Cumberland Court, Dundonald, Belfast, BT16 2AP | | Map & Directions |
| W J Scott & Son | 028 8676 2325 | | 57-59 James Street, Cookstown, BT80 8AE | | Map & Directions |
| V M Lowe | 028 3083 8443 | | 60 Derrymore Road , Bessbrook, Newry, BT35 7DN | | Map & Directions |
| Maurice Stevenson Ltd | 028 3832 7636 | | Annesborough Industrial Estate, Site 32 Annesborough Road, Lurgan, Craigavon, BT67 9JD | | Map & Directions |
| K P Mclaughlin | 028 7776 5476 | | 25 New Line Road, Limavady, BT49 9NF | | Map & Directions |
| J Hinds | 028 4277 1652 | | 15 Dunevly Road, Portaferry, Newtownards, BT22 1NB | | Map & Directions |
| Northwest Mechanical Services | 028 7127 9008 | | Unit 4, Springtown Road, Londonderry, BT48 0LY | | Map & Directions |
| Mid Ulster Heating Services- | 07860 422071 | | 40 Castletown Road, Aughnacloy, BT69 6ED | | Map & Directions |
| Pipeline Services | 028 9037 0662 | | Unit 22, Dargan Crescent, Somerton Industrial Park, Belfast, BT3 9JB | | Map & Directions |
| Mcintyre Plumbing | 028 9181 0982 | | 25 The Willows, Newtownards, BT23 8FJ | | Map & Directions |
| H Allen | 028 3835 9313 | | 181 West Street , Portadown, Craigavon, BT62 4BT | | Map & Directions |
| Hanna Bros | 028 3832 3306 | | 95 Union Street, Lurgan, Craigavon, BT66 8ED | | Map & Directions |
| Cassidy Bros | 028 2954 0057 | | 29 Lismoyle Road, Kilrea, Coleraine, BT51 5UH | | Map & Directions |
| Thomas Magill | 028 4372 2829 | | 133 South Promenade, Newcastle, BT33 0HA | | Map & Directions |
| R J M Heating & Plumbing Services Ltd | 028 9146 6461 | | 11 Westmorland Crescent, Bangor, BT20 3LX | | Map & Directions |
| Allen Mechanical Services | 028 9269 9606 | | 37 Villa Wood Road , Dromore, BT25 1LG | | Map & Directions |
| P A Donaghy | 028 8775 8601 | | 95 Sluggan Road, Pomeroy, Dungannon, BT70 2UP | | Map & Directions |
| S M Sandford | 028 9186 1042 | | 238 Ballywalter Road, Millisle, Newtownards, BT22 2LY | | Map & Directions |
| Burnison Plumbing & Heating | 028 9332 2016 | | 42 Ballygowan Road , Ballyclare, BT39 9UP | | Map & Directions |
| Jcl Plumbing & Heating | 028 9266 1156 | | 8 Ballyknocken Avenue, Lisburn, BT28 1SG | | Map & Directions |
| Thomas J Patterson | 028 8224 4567 | | 16 Gillygooly Road, Omagh, BT78 5PN | | Map & Directions |
| Cooney Bros | 028 9030 1885 | | 219 Finaghy Road North, Belfast, BT11 9ED | | Map & Directions |
| F M Services | 028 9064 2228 | | 12 Mount Merrion Gardens, Belfast, BT6 0FW | | Map & Directions |
| Bernard J Mulholland | 028 3833 2620 | | 3 Killycomain Road , Portadown, Craigavon, BT63 5BT | | Map & Directions |
| Freeflow Plumbing Services | 028 9447 2387 | | 53 Derryhollagh Road, Randalstown, Antrim, BT41 3HP | | Map & Directions |
| A W Olphert | 028 7184 1485 | | 117 Dunnalong Road, Bready, Strabane, BT82 0DP | | Map & Directions |
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