- M Merry Quality Gas Services
- 0845 3736639 - 36 Providence Wy, Waterbeach, Cambridge, Cambridgeshire, CB5 9QJ
- A.K Marshall
- 0870 8148359 - 1a Gray Road, Cambridge, Cambridgeshire, CB1 3TA
- A W B Electrical & Mechanical Services
- 01778 349367 - 22 Westfield Wy, Langtoft, Peterborough, Cambridgeshire, PE6 9RH
- Anglia Gas Centre
- 01733 262117 - Ivatt Wy, Peterborough, Cambridgeshire, PE3 7PE
- Biogas Technology
- 01487 831701 - 16 Glatton Road, Sawtry, Huntingdon, Cambridgeshire, PE28 5SY
- Kroll Gas Centre
- 01480 417624 - 41 Cambridge Street, Godmanchester, Huntingdon, Cambridgeshire, PE29 2AY
- Rawheat
- 01733 578403 - 1260b Lincoln Road, Werrington, Peterborough, Cambridgeshire, PE4 6LQ
- Hunts Gas
- 01480 459673 - 9 Church Road Great Stukeley, Huntingdon, PE28 4AL
- A J Harold - Heating Engineer
- 01353 775410 - 70 Meadow Way, Mepal, Ely, Cambridgeshire, CB6 2GJ
- AK Gas
- 01480 217857 - 15 Arundel Crescent, St Neotts, Cambridgeshire, PE19 2SL
- CJS Plumbing and Heating
- 07757 646099 - 61 Nene Way, St Ives, Cambridgeshire, PE27 3WT
- GWS Services
- 01945 772193 - 28 Churchfield Road Outwell, Wisbech, Cambridgeshire, PE14 8RL
- K Fisk Plumbing And Heating Ltd
- 0845 4817104 - 15 Capulet Close Eaton Socon, St Neots, Cambridgeshire, PE19 8UQ
- Mister Boiler
- 01954 204508 - 27 Courtyard Way, Cottenham, Cambridgeshire, CB24 8SF