| Mcintyre Plumbing | 028 9181 0982 | | 25 The Willows, Newtownards, BT23 8FJ |  Map & Directions |
| Lear Mechanical Services | 028 7778 1700 | | 184 Learmount Road, Park, Londonderry, BT47 4BA | | Map & Directions |
| Matt Crothers | 028 9266 4202 | | 12 Carrisbrook Gardens, Lisburn, BT27 4PN | | Map & Directions |
| Bernard J Mulholland | 028 3833 2620 | | 3 Killycomain Road , Portadown, Craigavon, BT63 5BT | | Map & Directions |
| Armstrong Plumbing | 028 9267 6875 | | 113 Saintfield Road, Lisburn, BT27 5PA | | Map & Directions |
| D & E Gray | 028 9083 3320 | | 60 Street Annes Crescent , Newtownabbey, BT36 5JZ | | Map & Directions |
| Cooney Bros | 028 9030 1885 | | 219 Finaghy Road North, Belfast, BT11 9ED | | Map & Directions |
| Mid Ulster Heating Services- | 07860 422071 | | 40 Castletown Road, Aughnacloy, BT69 6ED | | Map & Directions |
| Northwest Mechanical Services | 028 7127 9008 | | Unit 4, Springtown Road, Londonderry, BT48 0LY | | Map & Directions |
| S M Sandford | 028 9186 1042 | | 238 Ballywalter Road, Millisle, Newtownards, BT22 2LY | | Map & Directions |
| F M Services | 028 9064 2228 | | 12 Mount Merrion Gardens, Belfast, BT6 0FW | | Map & Directions |
| A W Olphert | 028 7184 1485 | | 117 Dunnalong Road, Bready, Strabane, BT82 0DP | | Map & Directions |
| Belmont Plumbing Services | 028 9069 4301 | | Po Box 781, Belfast, BT8 7PA | | Map & Directions |
| A Rankin & Son | 028 7946 8231 | | 60 Main Street, Castledawson, Magherafelt, BT45 8AB | | Map & Directions |
| Adrian Magorrian | 028 4372 4688 | | 17 Ardaluin Court, Newcastle, BT33 0RT | | Map & Directions |
| Mccollam Ltd | 028 9443 2734 | | 7 Lylehill Road, Templepatrick, Ballyclare, BT39 0EN | | Map & Directions |
| Edmund Donaldson | 028 4176 3227 | | 56 Newry Road, Kilkeel, Newry, BT34 4ES | | Map & Directions |
| Ni Gas Plumbing & Heating Ltd | 028 9334 1093 | | 16 Castlebrook Avenue, Ballynure, Ballyclare, BT39 9GX | | Map & Directions |
| R J M Heating & Plumbing Services Ltd | 028 9146 6461 | | 11 Westmorland Crescent, Bangor, BT20 3LX | | Map & Directions |
| J Hinds | 028 4277 1652 | | 15 Dunevly Road, Portaferry, Newtownards, BT22 1NB | | Map & Directions |
| Robert Newberry | 028 9145 9928 | | Unit 1, 4 Balloo Drive, Bangor, BT19 7QY | | Map & Directions |
| Willow Heating & Plumbing | 028 9037 0375 | | 19 Grasmere Gardens, Belfast, BT15 5EG | | Map & Directions |
| Curran | 028 6772 4402 | | Unit 2, Drumbrughas North, Lisnaskea, Enniskillen, BT92 0PE | | Map & Directions |
| M Nugent | 028 8775 8617 | | 2 Tandragee Road, Pomeroy, Dungannon, BT70 3DS | | Map & Directions |
| James Gray | 028 9447 3662 | | 24 Hollybrook Road, Randalstown, Antrim, BT41 2PB | | Map & Directions |
| Coast Line Mechanical Services | 028 7775 0322 | | 16 Limestone Road, Limavady, BT49 0LB | | Map & Directions |
| H & A Mechanical Services | 028 7962 7220 | | 28 Five Mile Straight, Draperstown, Magherafelt, BT45 7EE | | Map & Directions |
| David Scott & Son | 028 9081 2331 | | 70 Ballynahinch Road, Carryduff, Belfast, BT8 8DP | | Map & Directions |
| J Bunting | 028 9060 0606 | | Blackstaff Road , Kennedy Way Industrial Estate , Belfast, BT11 9DT | | Map & Directions |
| Thomas Magill | 028 4372 2829 | | 133 South Promenade, Newcastle, BT33 0HA | | Map & Directions |
| V M Lowe | 028 3083 8443 | | 60 Derrymore Road , Bessbrook, Newry, BT35 7DN | | Map & Directions |
| P A Donaghy | 028 8775 8601 | | 95 Sluggan Road, Pomeroy, Dungannon, BT70 2UP | | Map & Directions |
| Scott & Ewing Ltd | 028 8224 6491 | | 59 Crevenagh Road, Omagh, BT79 0EX | | Map & Directions |
| Allen Mechanical Services | 028 9269 9606 | | 37 Villa Wood Road , Dromore, BT25 1LG | | Map & Directions |
| Hanna Bros | 028 3832 3306 | | 95 Union Street, Lurgan, Craigavon, BT66 8ED | | Map & Directions |
| Jcl Plumbing & Heating | 028 9266 1156 | | 8 Ballyknocken Avenue, Lisburn, BT28 1SG | | Map & Directions |
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