| Safe Flame Gas Services Ltd, Boston, PE21 6RY |
| Alan Louth Plumbing & Heating, Boston, PE21 8BY |
| Mark Allen (Plumbing) Limited, Boston , PE21 7QY |
| J D Freer Plumbing & Heating, Lincoln, LN4 4YJ |
| Simon Barker Services Ltd, Unit 6 & 7 Cresswell Close, Spalding, Li, PE11 3TY |
| Mark Five Gas And Plumbing Services, wainfleet, PE24 4DS |
| Romas Heating Engineer, Spalding, PE11 2RX |
| C J N Heating Plumbing & Gas Services, Sleaford, NG34 9DX |
| Mark charnock plumbing and heating engineer, Sleaford, NG34 7TQ |
| A Ledua Plumbing, , LN4 3PZ |
| J.L. Services, Horncastle , LN9 6AN |
| C L K Heating, Spilsby, PE23 5RU |
| Mark Charnock, Sleaford , NG34 7NJ |
| G & A Ellis Heating (Lincs), Lincoln, LN4 3QF |
| M J Services (Lincs) Ltd, Skegness, PE25 3TB |
| I M Plumbing & Heating Services, Skegness, PE25 3NH |
| Paul Chisam Plumbing and Heating, Skegness, PE25 2EZ |
| 1st Call Plumbing & Drainage/Yarmouth Plum, Skegness , PE25 |
| Simply Heating (Lincoln) ltd, Skegness, PE25 1DL |
| Massie Building Services, Lincoln, LN4 3EG |
