- Ash Heating
- 01352 741922 - Le Monte Cilcain Rd, Gwernaffield, Mold, Clwyd, CH7 5DJ
- C & V Services Ltd
- 01352 751800 - Hanrhys House, Main Rd, Mold, Flintshire, CH7 6QW
- Delyn Hire
- 0870 7574481 - Queens Lane, Bromfield Industrial Estate, Mold, Clwyd, CH7 1XB
- R.T Downs
- 01352 744908 - Unit 1 Mold Bsns Pk Maes Gwern, Mold, Clwyd, CH7 1XP
- Fireprotect
- 01244 536595 - Factory Rd, Sandycroft, Deeside, Clwyd, CH5 2QL
- Griffiths
- 01244 537800 - Hawarden Bsns Pk Clwyd Clo Manor La, Hawarden Industrial Park, Hawarden, Deeside, Clwyd, CH5 3PZ
- Gwespyr Heating
- 01745 856562 - Westhill Llanasa Rd, Gwespyr, Holywell, Clwyd, CH8 9JS
- Hydro-Tech Heating
- 0845 3736639 - Tyn Y Cae Ruthin Rd, Gwernymynydd, Mold, Clwyd, CH7 5LG
- Industrial Gas Services
- 01244 813426 - Bumble Bee Gar Church St, Connah's Quay, Deeside, Clwyd, CH5 4AR
- Kiwi Supplies
- 01244 543513 - Woodlands Alltami Rd, Alltami, Mold, Clwyd, CH7 6LG
- Margden Plumbing & Heating Engineers
- 01244 548018 - The Croft Alltami Rd, Buckley, Clwyd, CH7 3PG
- S.A Maybury
- 01244 550561 - 12 Delamere Avenue, Buckley, Clwyd, CH7 3BU
- Quay Home Heating
- 01244 812517 - 116 High Street, Connah's Quay, Deeside, Clwyd, CH5 4DF
- Spencers Plumbing & Heating Supplies Ltd
- 01244 813470 - 7 Nelson Street, Shotton, Deeside, Clwyd, CH5 1DH
- Corr Gas Services
- 01352 761572 - 56 Min Awel, Flint, Clwyd, CH6 5TG
- E.b.m Heating Services
- 01352 733000 - Gwelfor Tyddyn Messham, Bagillt, CH6 6DG
- G P Davies Gas Services
- 0845 8061664 - 94a Brunswick Road Buckley, Clwyd, Flintshire, CH7 2ER
- RW McKenzie
- 07748 268149 - 1 Cross Field Road Greenfield, Hollywell, CH8 7JB
- Psp Plumbing & Heating
- 07753 820155 - Langholme Halkyn, Mold, Flintshire, CH8 8DL