| Boiler Check Ltd, Bolton, BL4 7RJ |
| Tom Prince Plumbing & Heating, Bolton, BL48JF |
| Wintak Homes, Manchester road, bolton, BL3 2NZ |
| Leverhome, Bolton, BL3 1AB |
| Tek Heating Services Ltd, Bolton, BL3 1AT |
| Howards Heating Specialists, Little Lever, Bolton, BL3 1XD |
| A 2 B Gas Engineers & Specialists, Bolton, BL3 6PW |
| Houghton Heating, Manchester, M28 0TS |
| Stanley Heating, , M28 7EE |
| CJS PROPERTY SERVICES NW, Bolton, BL3 1NW |
| RAD HOT HEATING, , BL4 0LN |
| T J Entwistle Plumbing & Heating, Greater manchester, BL2 6HN |
| Ecoheat Northwest Ltd, Ecoheat northwest, The cube, Coe Street,, BL3 6BU |
| Dynomo Plumbing &Heating Services, Bolton , BL3 6TJ |
| Safe Gas Services, Bolton, BL2 6BS |
| Urban Gasco Ltd, Bolton, BL3 6TA |
| Thomas Walsh Plumbing & Heating, Bolton, BL2 6AG |
| ZH Heating and Gas , Bolton, BL3 5LP |
| D&Z PLUMBING & HEATING LTD, Bolton, BL1 |
| Certus Gas Solutions, , BL3 3QX |
