| HEARDS WATER SYSTEMS LIMITED | 07175352 | Holsworthy | 3 March 2010 | Liquidation |
| ABBEY ENGINEERING PLUMBING & HEATING SERVICES LIMITED | 06981532 | Newcastle upon Tyne | 5 August 2009 | Liquidation |
| MHB CONSULTANCY LIMITED | 06958776 | Holmer Green | 10 July 2009 | Liquidation |
| WOOLSEY & WOOLSEY LIMITED | 06890182 | King's Lynn | 28 April 2009 | Liquidation |
| PLUMBFIT UK LTD | 06888836 | Christchurch | 27 April 2009 | Liquidation |
| BEDFORD MECHANICAL LIMITED | 06853885 | Bedford | 20 March 2009 | Liquidation |
| ALPHA FLOW LIMITED | 06753507 | Tring | 19 November 2008 | Liquidation |
| W.B HEAT LTD | 06686453 | Manchester | 2 September 2008 | Liquidation |
| WARREN MECHANICAL SERVICES LTD | 06665950 | Portsmouth | 6 August 2008 | Liquidation |
| DREAM GREEN DESIGN LTD | 06602770 | Leighton Buzzard | 27 May 2008 | Liquidation |
| BAXTER PLUMBING & HEATING SOLUTIONS LIMITED | 06583458 | Oldham | 2 May 2008 | Liquidation |
| D L PLUMBING (NW) LTD | 06558774 | Leigh | 8 April 2008 | Liquidation |
| INTER GAS HOME HEATING LIMITED | 06544283 | Bridgend | 26 March 2008 | Liquidation |
| HOMECARE PLUMBING & HEATING SOLUTIONS LTD | 06545326 | Wakefield | 26 March 2008 | Liquidation |
| 06500512 LIMITED | 06500512 | Newcastle upon Tyne | 11 February 2008 | Liquidation |
| A & P PLUMBING AND HEATING (UK) LTD | 06475800 | Doncaster | 17 January 2008 | Liquidation |
| STS MECHANICAL LTD | 06472858 | Chichester | 15 January 2008 | Liquidation |
| BUNN & SONS LIMITED | 06470524 | Horley | 11 January 2008 | Liquidation |
| MACLEAN HEATING LIMITED | 06409073 | East Sussex | 25 October 2007 | Liquidation |
| R&D HEATING LIMITED | 06332782 | Cardiff | 3 August 2007 | Liquidation |
| CHPC LIMITED | 06316735 | Solihull | 18 July 2007 | Liquidation |
| OLYMPIC PLUMBING HEATING AND ELECTRICAL SERVICES LIMITED | 06291656 | Bristol | 25 June 2007 | Liquidation |
| JKA HEATING PLUMBING & ELECTRICS LTD | 06162313 | Stockton-On-Trees | 15 March 2007 | Liquidation |
| APH GAS SERVICES LIMITED | 06143343 | Rotherham | 7 March 2007 | Liquidation |
| 06135077 LIMITED | 06135077 | Wigan | 2 March 2007 | Liquidation |
| HEAT EASY LIMITED | 05990775 | Kent | 7 November 2006 | Liquidation |
| THE EFFICIENT ENERGY CENTRE LIMITED | 05940204 | Stoke-On-Trent | 19 September 2006 | Liquidation |
| PERFECT PLUMBING SERVICES LIMITED | 05940454 | Cardiff | 19 September 2006 | Liquidation |
| RJM HEAT SERVICES LIMITED | 05921296 | Sheffield | 31 August 2006 | Liquidation |
| DMAC PLUMBING & HEATING LIMITED | 05851395 | West Yorkshire | 20 June 2006 | Liquidation |
| MK GAS LIMITED | 05848277 | Fareham | 15 June 2006 | Not in the latest register snapshot (dissolved or removed) |
| CHAMBERS PLUMBING & HEATING LTD. | 05816237 | Sheffield | 15 May 2006 | Liquidation |
| UK PLUMBING & TRAINING SERVICES LIMITED | 05813919 | Doncaster | 11 May 2006 | Liquidation |
| GASTRONICS LIMITED | 05739655 | Ilkley | 13 March 2006 | Liquidation |
| YOUNG PLUMBING & HEATING SERVICES LIMITED | 05717791 | London | 22 February 2006 | Liquidation |
| NIXON PLUMBING AND HEATING LIMITED | 05579823 | Devon | 30 September 2005 | Liquidation |
| J TORRES LIMITED | 05573218 | Essex | 23 September 2005 | Liquidation |
| ABERDEEN PLUMBING AND HEATING CONTRACTORS LIMITED | SC289648 | Aberdeen | 31 August 2005 | Liquidation |
| BOILERS & BATHS LIMITED | 05534615 | Hampton Road West Feltham | 11 August 2005 | Liquidation |
| QUICK HEATING SOLUTIONS LTD | 05436610 | Hampshire | 26 April 2005 | Liquidation |
| G. J. PLUMBING SERVICES LIMITED | 05260932 | Worcestershire | 15 October 2004 | Liquidation |
| HOME REPAIR 24/7 LIMITED | 05246657 | Bradford | 30 September 2004 | Liquidation |
| R.H.L.HEATING LIMITED | 05238578 | Newcastle upon Tyne | 22 September 2004 | Liquidation |
| ROBINSONS PLUMBING & HEATING LTD. | 05208614 | Droitwich | 18 August 2004 | Liquidation |
| BCREST LIMITED | 05184945 | Leighton Buzzard | 20 July 2004 | Liquidation |
| RAVENVALE PLUMBING & HEATING LIMITED | 05178989 | Nottingham | 13 July 2004 | Liquidation |
| K R S PLUMBING AND HEATING LTD. | 05129460 | Horsham | 17 May 2004 | Liquidation |
| TOTAL PIPEWORK SERVICES LTD | 05120360 | Rochdale | 6 May 2004 | Liquidation |
| TBB PLUMBING & HEATING LTD | 05057899 | Devon | 27 February 2004 | Liquidation |
| SMG & SONS LTD | NI049664 | Belfast | 12 February 2004 | Liquidation |