| andrew smith boiler services | 1.97 | 0.7 | 2500 | 28 | 71 |
| trevor smith boiler services | 1.05 | 0.3 | 1242 | 28 | 85 |
| hb smith boiler company | 0.62 | 0.1 | 2531 | 23 | 98 |
| andrew smith hvac services | 1.15 | 0.7 | 571 | 26 | 66 |
| a o smith boiler | 0.72 | 1 | 7649 | 16 | 15 |
| andy hill boiler servicing | 0.12 | 0.9 | 4211 | 26 | 81 |
| ao smith residential boiler | 1.13 | 0.9 | 9176 | 27 | 66 |
| hb smith residential boilers | 1.34 | 0.9 | 3316 | 28 | 73 |
| ian stewart boiler services | 0.52 | 0.9 | 4855 | 27 | 27 |
| andrew sykes boiler hire | 0.98 | 0.5 | 6403 | 24 | 58 |
| south antrim boiler services limited | 1.16 | 0.7 | 5971 | 36 | 76 |
| boiler service south london | 0.39 | 0.1 | 8070 | 27 | 73 |
| the boiler installation specialist | 0.12 | 0.7 | 2411 | 34 | 50 |
| a o smith gas boilers | 0.93 | 0.2 | 4430 | 21 | 4 |
| ao smith commercial boilers | 0.99 | 0.5 | 8154 | 27 | 39 |
| boiler installation south wales | 1.64 | 0.6 | 8893 | 31 | 21 |
| bill smith heating and air | 0.03 | 0.2 | 9328 | 26 | 61 |
| smith cast iron boilers | 0.19 | 0.4 | 6006 | 23 | 94 |
